6
IM465 – Segundo Semestre de 2010 - Análise de artigo Exercício de caráter estritamente individual. Envie-o para meu e-mail até 29/10/2010. O artigo apresentado a seguir trata da texturização e anisotropia de uma liga de alumínio. Os autores comentam sobre diversos conceitos que temos discutido nas aulas. Responda as seguintes questões a partir do conteúdo do artigo: 1) O que diferencia os processos CC e DC, considerando os próprios processos, seus produtos e o recozimento posterior? 2) O que pode levar à formação de orelhas nas chapas laminadas de alumínio? 3) Justifique as duas rotas utilizadas no procedimento experimental: recozimento prévio, laminação a frio, recozimento final, ensaios de textura e anisotropia. 4) Por quê os autores afirmam que o recozimento a 204 oC por 3 horas não afeta a textura? 5) Por quê os autores optaram ensaio de embutimento das chapas? 6) Quais foram as diferenças encontradas nas texturas dos produtos recozidos a 454 o C por 3 horas e como essas diferenças afetaram a anisotropia? 7) Como a deformação por laminação a frio modificou a textura do material recozido e como isso influenciou a anisotropia? 8) Como ocorre a transição de quatro para oito orelhas? 9) Como a temperatura de recozimento da segunda rota de processamento afetou a textura e anisotropia das chapas? 10) Quais são as condições de processamento que devem ser utilizadas para se obter produtos com a qualidade adequada para estampagem profunda?

IM465 – Segundo Semestre de 2010 - Análise de artigosergio1/pos-graduacao/im465/artigo3.pdf · IM465 – Segundo Semestre de 2010 - Análise de artigo Exercício de caráter estritamente

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IM465 – Segundo Semestre de 2010 - Análise de artigo

Exercício de caráter estritamente individual. Envie-o para meu e-mail até 29/10/2010.

O artigo apresentado a seguir trata da texturização e anisotropia de uma liga de

alumínio. Os autores comentam sobre diversos conceitos que temos discutido nas

aulas.

Responda as seguintes questões a partir do conteúdo do artigo:

1) O que diferencia os processos CC e DC, considerando os próprios processos,

seus produtos e o recozimento posterior?

2) O que pode levar à formação de orelhas nas chapas laminadas de alumínio?

3) Justifique as duas rotas utilizadas no procedimento experimental: recozimento

prévio, laminação a frio, recozimento final, ensaios de textura e anisotropia.

4) Por quê os autores afirmam que o recozimento a 204 oC por 3 horas não afeta a

textura?

5) Por quê os autores optaram ensaio de embutimento das chapas?

6) Quais foram as diferenças encontradas nas texturas dos produtos recozidos a

454 oC por 3 horas e como essas diferenças afetaram a anisotropia?

7) Como a deformação por laminação a frio modificou a textura do material

recozido e como isso influenciou a anisotropia?

8) Como ocorre a transição de quatro para oito orelhas?

9) Como a temperatura de recozimento da segunda rota de processamento afetou

a textura e anisotropia das chapas?

10) Quais são as condições de processamento que devem ser utilizadas para se

obter produtos com a qualidade adequada para estampagem profunda?

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2alu

min

um

all

oy

su

sed

inth

is

stu

dy

.

Tex

ture

measu

rem

en

tsw

ere

perf

orm

ed

at

the

qu

art

er

thic

ness

of

the

cold

roll

ed

an

dan

neale

dsh

eets

.Th

e(1

11

),(2

00

),an

d

(22

0)

po

lefi

gu

res

were

measu

red

up

toa

max

imu

mti

ltan

gle

of

75

◦b

yth

eSch

ulz

back

­refl

ect

ion

meth

od

usi

ng

Cu

Ka

rad

iati

on

.Th

e

ori

en

tati

on

dis

trib

uti

on

fun

ctio

ns

(OD

Fs)

were

calc

ula

ted

fro

mth

e

thre

ein

com

ple

tep

ole

fig

ure

su

sin

gth

ese

ries

ex

pan

sio

nm

eth

od

(lm

ax

=1

6)

(Bu

ng

e,1

98

2).

Th

eO

DFs

were

pre

sen

ted

as

plo

tso

fco

stan

2se

ctio

ns

wit

his

oin

ten

sity

con

tou

rsin

Eu

ler

space

defi

ned

by

the

Eu

ler

an

gle

1,˚

an

2.T

he

vo

lum

efr

act

ion

so

fth

ete

xtu

re

com

po

nen

tsw

ere

calc

ula

ted

by

an

imp

rov

ed

inte

gra

tio

nm

eth

od

pro

po

sed

by

Liu

an

dM

orr

is(2

00

3).

Cu

pd

raw

ing

test

sw

ere

perf

orm

ed

on

ah

yd

rau

lic

pre

ss.F

or

the

sheets

wit

hth

ick

ness

es

ran

gin

gfr

om

0.2

6to

ab

ou

t3

mm

bla

nk

s

wit

ha

dia

mete

ro

f6

0m

mw

ere

defo

rmed

wit

ha

pu

nch

of3

3.3

mm

.

Aft

er

deep

dra

win

g,th

eeari

ng

pro

file

sw

ere

pro

bed

inst

ep

so

f1

usi

ng

Hu

xle

yB

ert

ram

36

0◦

Au

tom

ati

cE

ari

ng

Test

Sy

stem

.D

ue

to

the

ort

ho

tro

pic

sam

ple

sym

metr

y,th

eeari

ng

pro

file

may

be

sym

­

metr

ized

wit

hre

spect

toth

ero

llin

gd

irect

ion

(RD

)an

dtr

an

svers

e

dir

ect

ion

.Fig

.2

sho

ws

two

ex

am

ple

so

fth

eeari

ng

pro

file

of

the

dra

wn

cup

sw

ith

fou

ran

deig

ht

ears

.T

he

eari

ng

valu

ew

as

calc

late

du

sin

gth

efo

llo

win

geq

uati

on

:

E=

hi−

hm

in

hm

in(1

)

wh

ere

hm

inis

the

heig

ht

at

the

vall

ey

,an

dh

iis

the

heig

ht

of

the

eari

ng

peak

s.Fig

.2(b

)d

ep

icts

ach

ara

cteri

stic

eig

ht­

ear

pro

file

wit

h

ears

at

0◦,

45

◦an

d9

0◦

toth

eR

D.

Th

us,

the

45

◦an

d0

/90

◦eari

ng

valu

es

can

be

ob

tain

ed

fro

mth

em

easu

red

eari

ng

pro

file

s.Fo

rsu

ch

mix

ed

tex

ture

sw

ith

eig

ht

ears

the

delt

aeari

ng

valu

e,1

E,m

ay

be

use

ful,

wh

ich

isd

efi

ned

as

1E

=2

h4

5◦−

(h0

◦+

h9

0◦)

h0

◦+

h9

0◦

(2)

Neg

ati

ve

valu

es

of

1E

imp

lyth

at

the

av

era

ge

0◦/9

0◦

ears

are

larg

er

than

the

45

◦ears

or

the

deep

­dra

wn

cup

ex

hib

its

fou

r0

/90

◦ears

.

Fig

.1

.Flo

wch

art

of

the

pro

cess

ing

rou

tefo

rth

eC

Can

dD

CA

A5

18

2alu

min

um

all

oy

su

sed

inth

isst

ud

y.

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

20

09

Fig

.2

.E

ari

ng

pro

file

so

fth

ed

raw

ncu

ps

wit

h(a

)fo

ur

an

d(b

)eig

ht

ears

.

3.

Re

sult

s

3.1

.E

volu

tion

of

textu

rean

dea

rin

gd

uri

ng

roll

ing

Fig

.3

sho

ws

the

tex

ture

of

the

CC

an

dD

CA

A5

18

2alu

min

um

all

oy

saft

er

an

neali

ng

at

45

4◦C

for

3h

.It

isse

en

that

the

CC

all

oy

po

ssess

ed

asi

gn

ifica

ntl

yw

eak

er

cub

ete

xtu

reth

an

the

DC

all

oy

.

Th

ete

xtu

reev

olu

tio

nd

uri

ng

roll

ing

of

the

CC

an

dD

CA

A5

18

2

alu

min

um

all

oy

sh

as

been

rep

ort

ed

els

ew

here

by

Liu

an

dM

orr

is

(20

03

) .Fig

.4

sho

ws

the

vari

ati

on

inth

ev

olu

me

fract

ion

so

fth

e

cub

e,

bfi

ber

an

dre

main

der

com

po

nen

tsw

ith

roll

ing

tru

est

rain

.

As

the

roll

ing

tru

est

rain

incr

ease

d,

the

vo

lum

efr

act

ion

so

fth

e

cub

ean

dre

main

der

com

po

nen

tsd

ecr

ease

d,

wh

ere

as

the

vo

lum

e

fract

ion

of

the

bfi

ber

com

po

nen

tin

crease

d.

Th

eC

Call

oy

ex

hib

­

ited

ast

ron

ger

bfi

ber

tex

ture

than

the

DC

all

oy

at

ag

iven

roll

ing

red

uct

ion

.

Fig

.5sh

ow

sth

eev

olu

tio

no

feari

ng

du

rin

gro

llin

go

fth

eC

Can

d

DC

AA

51

82

alu

min

um

all

oy

s.T

he

an

neale

dC

Ch

ot

ban

dex

hib

­

ited

very

small

ears

at

45

◦to

the

RD

beca

use

of

the

weak

reta

ined

roll

ing

tex

ture

inth

ere

cry

stall

izati

on

tex

ture

.Th

e4

5◦

eari

ng

valu

e

an

dd

elt

aeari

ng

valu

ein

crease

dw

ith

incr

easi

ng

roll

ing

red

uct

ion

.

At

90

%ro

llin

gre

du

ctio

n,

the

eari

ng

valu

eo

fth

eC

Call

oy

reach

ed

ab

ou

t9

%.T

he

an

neale

dD

Ch

ot

han

dex

hib

ited

0/9

0◦

eari

ng

beca

use

itp

oss

ess

ed

ast

ron

gcu

be

recr

yst

all

izati

on

tex

ture

.A

sth

ero

llin

g

red

uct

ion

incr

ease

d,th

ecu

be

com

po

nen

tw

eak

en

ed

,w

here

as

the

bfi

ber

com

po

nen

tst

ren

gth

en

ed

.Th

isre

sult

ed

ina

decr

ease

inth

e

0/9

0◦

eari

ng

valu

e.

Th

eir

reg

ula

rv

ari

ati

on

inth

e0

◦eari

ng

valu

e

inth

eearl

yst

ag

eo

fd

efo

rmati

on

can

be

att

rib

ute

dto

the

eff

ect

of

sheet

thic

kn

ess

.Th

eth

ick

alu

min

um

sheet

an

dsm

all

size

of

pu

nch

Fig

.4

.V

ari

ati

on

inth

ev

olu

me

fract

ion

so

fth

ecu

be,

bfi

ber

an

dre

main

der

com

­

po

nen

tsw

ith

roll

ing

tru

est

rain

inth

eco

ld­r

oll

ed

CC

an

dD

CA

A5

18

2alu

min

um

all

oy

s.

rest

rict

the

form

ati

on

ofe

ari

ng

du

rin

gd

eep

dra

win

g.W

hen

the

cold

roll

ing

red

uct

ion

reach

ed

ab

ou

t4

5%

,th

ed

eep

­dra

wn

cup

ex

hib

­

ited

eig

ht

ears

at

0◦,4

5◦

an

d9

0◦

toth

eR

D.A

sth

ero

llin

gre

du

ctio

n

furt

her

incr

ease

d,

the

0/9

0◦

eari

ng

valu

ed

ecr

ease

d,

wh

ere

as

the

45

◦eari

ng

valu

ein

crease

d.

Neg

ati

ve

valu

es

of

1E

imp

lyth

at

the

av

era

ge

0◦/9

0◦

ears

are

larg

er

than

the

45

◦ears

.A

fter

90

%ro

llin

g

red

uct

ion

,th

eeari

ng

pro

file

on

lysh

ow

ed

fou

r4

5◦

ears

.

Fig

.3

.T

ex

ture

of

the

(a)

CC

an

d(b

)D

CA

A5

18

2alu

min

um

all

oy

saft

er

an

neali

ng

at

45

4◦C

for

3h

.

20

10

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

Fig

.5

.(a

)0

/45

◦eari

ng

valu

ean

d(b

)d

elt

aeari

ng

valu

eas

afu

nct

ion

of

roll

ing

red

uct

ion

for

the

CC

an

dD

CA

A5

18

2alu

min

um

all

oy

s.

Th

ealu

min

um

sheets

wit

hm

inim

um

eari

ng

cou

ldb

eo

bta

ined

at

ag

iven

gau

ge

by

bala

nci

ng

the

45

◦an

d0

/90

◦eari

ng

ten

den

cies.

Fo

rth

eD

Call

oy

,th

em

inim

um

eari

ng

valu

eo

f3

.5%

was

ob

tain

ed

at

ab

ou

t8

3%

roll

ing

red

uct

ion

.T

he

eari

ng

valu

eo

fth

eC

Call

oy

incr

ease

dw

ith

incr

easi

ng

roll

ing

red

uct

ion

.At

larg

ero

llin

gre

du

tio

ns,

the

eari

ng

valu

eo

fth

eC

Call

oy

was

larg

er

than

that

of

the

DC

all

oy

.T

he

eari

ng

valu

eo

fth

eC

Call

oy

at

51

%ro

llin

gre

du

ctio

n

was

the

sam

eas

the

min

imu

meari

ng

valu

eo

fth

eD

Call

oy

.Th

ere

­

fore

,in

ord

er

toim

pro

ve

the

pla

stic

an

iso

tro

py

ofth

eco

ld­r

oll

ed

CC

sheet,

the

cold

roll

ing

red

uct

ion

sho

uld

be

red

uce

db

yco

ntr

oll

ing

the

thic

kn

ess

of

init

ial

CC

ho

tb

an

d.

3.2

.E

volu

tion

of

textu

rean

dea

rin

gd

uri

ng

an

nea

lin

g

Fig

.6sh

ow

sth

eO

DFs

of

the

CC

ho

tb

an

dco

ldro

lled

to7

1.5

%as

well

as

the

CC

an

dD

Ch

ot

ban

dan

neale

dat

45

4◦C

for

3h

an

dth

en

cold

roll

ed

to7

1.5

%.

Inth

eco

ld­r

oll

ed

state

the

CC

all

oy

wit

ho

ut

pre

­tre

atm

en

tex

hib

ited

the

stro

ng

est

bfi

ber

roll

ing

tex

ture

.T

he

Fig

.6

.O

DFs

of

the

CC

ho

tb

an

dco

ldro

lled

to7

1.5

%as

well

as

the

CC

an

dD

Ch

ot

ban

ds

an

neale

dat

45

4◦C

for

3h

an

dth

en

cold

roll

ed

to7

1.5

%.

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

20

11

Fig

.7.

Rati

o(M

i/M

i­ra

nd

om

)o

fth

ev

olu

me

fract

ion

ofth

ete

xtu

reco

mp

on

en

t(M

i)to

that

un

der

ap

erf

ect

lyra

nd

om

con

dit

ion

(/M

i­ra

nd

om

)as

afu

nct

ion

ofan

neali

ng

tem

pera

ture

for

(a)

the

CC

ho

tb

an

dco

ldro

lled

to7

1.5

%as

well

as

the

(b)

CC

an

d(c

)D

Ch

ot

ban

ds

an

neale

dat

45

4◦C

for

3h

an

dth

en

cold

roll

ed

to7

1.5

%.

stre

ng

tho

fth

eb

fib

er

com

po

nen

td

ecr

ease

din

the

seq

uen

ceo

fth

e

CC

all

oy

wit

ho

ut

pre

­tre

atm

en

t,th

eC

Call

oy

wit

hp

re­t

reatm

en

t

an

dth

eD

Call

oy

wit

hp

re­t

reatm

en

t,w

here

as

the

stre

ng

tho

f

the

cub

eco

mp

on

en

tin

crease

d.

Th

eD

Call

oy

wit

hp

re­t

reatm

en

t

reta

ined

the

mo

stre

main

ing

cub

eco

mp

on

en

t.

Du

rin

gan

neali

ng

ofth

eco

ld­r

oll

ed

sheets

,reco

very

an

dre

cry

tall

izati

on

tak

ep

lace

.T

he

ev

olu

tio

no

fre

cry

stall

izati

on

tex

ture

can

be

an

aly

zed

qu

an

tita

tiv

ely

by

the

vari

ati

on

inth

ete

xtu

rev

ol­

um

efr

act

ion

sw

ith

an

neali

ng

tem

pera

ture

.Fig

.7

sho

ws

the

rati

o

(Mi/

Mi­

ran

do

m)

of

the

vo

lum

efr

act

ion

of

the

tex

ture

com

po

nen

t

(Mi)

toth

at

un

der

ap

erf

ect

lyra

nd

om

con

dit

ion

(/M

i­ra

nd

om

)as

a

fun

ctio

no

fan

neali

ng

tem

pera

ture

.T

he

tex

ture

vo

lum

efr

act

ion

s

of

the

cub

e,

r­cu

be,

Go

ss,

r­G

oss

,b

/Ran

dre

main

der

com

po

nen

ts

are

5.4

1,

5.6

4,

6.4

5,

9.0

9,

16

.90

,an

d5

6.5

0%

ina

perf

ect

lyra

do

msa

mp

le,

resp

ect

ively

(Liu

an

dM

orr

is,

20

04

).It

isn

ote

dth

at

reco

very

of

the

cold

­ro

lled

sheets

did

no

talt

er

the

stre

ng

tho

f

the

bfi

ber

roll

ing

tex

ture

.Sig

nifi

can

tch

an

ges

inte

xtu

reco

mp

nen

tso

ccu

rred

du

rin

gre

cry

stall

izati

on

.Fo

rth

eco

ld­r

oll

ed

CC

all

oy

wit

ho

utp

re­t

reatm

en

t( F

ig.7

(a))

,th

em

ajo

rch

an

ge

thro

ug

hre

cry

tall

izati

on

was

are

mark

ab

led

ecr

ease

inth

eb

fib

er

com

po

nen

t.

Mo

reo

ver,

recr

yst

all

izati

on

als

od

ecr

ease

dth

eG

oss

com

po

nen

tan

d

incr

ease

dth

ecu

be,r

­cu

be,r

­Go

ssan

dre

main

der

com

po

nen

ts.F

or

the

cold

­ro

lled

CC

all

oy

wit

hp

re­t

reatm

en

t(F

ig.

7(b

)),

recr

yst

al­

lizati

on

decr

ease

dth

eb

fib

er

an

dG

oss

com

po

nen

tsan

din

crease

d

the

cub

e,

r­cu

be

an

dre

main

der

com

po

nen

ts.

Th

er­

Go

ssco

mp

nen

tch

an

ged

slig

htl

yth

rou

gh

recr

yst

all

izati

on

.Fo

rth

eco

ld­r

oll

ed

DC

all

oy

wit

hp

re­t

reatm

en

t(F

ig.7

(c))

,recr

yst

all

izati

on

decr

ease

d

the

bfi

ber,

Go

ssan

dcu

be

com

po

nen

tsan

din

crease

dth

er­

cub

e,

r­G

oss

an

dre

main

der

com

po

nen

ts.

Fig

.8sh

ow

sth

eco

mp

ari

son

of

recr

yst

all

izati

on

tex

ture

am

on

g

the

thre

eco

ld­r

oll

ed

sheets

.T

he

CC

all

oy

ex

hib

ited

asl

igh

tly

weak

er

recr

yst

all

izati

on

tex

ture

than

the

DC

all

oy

. Liu

et

al.

(20

03

)

fou

nd

that

the

dif

fere

nce

inth

ere

cry

stall

izati

on

tex

ture

betw

een

the

CC

an

dD

Call

oy

sco

uld

be

att

rib

ute

dto

dif

fere

nt

init

ial

tex

­

ture

san

dp

art

icle

size

dis

trib

uti

on

sp

rio

rto

cold

roll

ing

.T

he

pre

­tre

atm

en

tp

rio

rto

cold

roll

ing

als

oaff

ect

ed

the

recr

yst

all

iza­

tio

nte

xtu

reo

fth

eC

Calu

min

um

all

oy

.Th

ere

cry

stall

izati

on

tex

ture

of

the

CC

all

oy

wit

ho

ut

pre

­tre

atm

en

tex

hib

ited

ast

ron

ger

cub

e

com

po

nen

tan

da

weak

er

Rco

mp

on

en

tth

an

that

of

the

CC

all

oy

wit

hp

re­t

reatm

en

t.

Fig

.9sh

ow

sth

ev

ari

ati

on

inth

e4

5◦

eari

ng

valu

ean

dd

elt

aeari

ng

valu

ew

ith

an

neali

ng

tem

pera

ture

for

the

cold

­ro

lled

CC

AA

51

82

alu

min

um

all

oy

wit

han

dw

ith

ou

tp

re­t

reatm

en

t.In

the

defo

rmed

an

dre

cov

ere

dst

ate

s,th

eC

Call

oy

wit

ho

ut

pre

­tre

atm

en

tp

oss

ess

ed

asi

gn

ifica

ntl

yh

igh

er

45

◦eari

ng

valu

eth

an

the

CC

all

oy

wit

hp

re­

treatm

en

t.T

he

45

◦eari

ng

valu

ean

dd

elt

aeari

ng

valu

ed

ecr

ease

d

wit

hin

creasi

ng

an

neali

ng

tem

pera

ture

.A

fter

com

ple

tere

cry

stal­

lizati

on

,th

eC

Call

oy

stil

lsh

ow

ed

45

◦ears

,an

dth

e4

5◦

eari

ng

valu

e

of

the

all

oy

wit

ho

ut

pre

­tre

atm

en

tw

as

slig

htl

ylo

wer

than

that

of

the

all

oy

wit

hp

re­t

reatm

en

t.Fig

.1

0(a

)sh

ow

sth

ere

lati

on

ship

betw

een

the

0/4

5◦

eari

ng

valu

ean

dan

neali

ng

tem

pera

ture

for

the

cold

­ro

lled

DC

AA

51

82

alu

min

um

all

oy

.In

the

defo

rmed

an

dre

cov

­

ere

dst

ate

s,th

eD

Call

oy

ex

hib

ited

eig

htears

at0

◦,4

5◦

an

d9

0◦

toth

e

RD

.Aty

pic

aleari

ng

pro

file

issh

ow

nin

Fig

.2(b

).T

he

0◦

eari

ng

valu

e

was

larg

er

than

the

45

◦eari

ng

valu

e,w

hil

eth

e9

0◦

eari

ng

valu

ew

as

very

small

.D

uri

ng

recr

yst

all

izati

on

an

neali

ng

,th

est

ren

gth

of

the

cub

eco

mp

on

en

tw

eak

en

ed

(Fig

.7

(c))

,le

ad

ing

toa

decr

ease

inth

e

0/9

0◦

eari

ng

valu

e.

Aft

er

com

ple

tere

cry

stall

izati

on

,th

eD

Call

oy

als

oex

hib

ited

45

◦ears

.Th

ev

ari

ati

on

inth

ed

elt

aeari

ng

valu

ew

ith

an

neali

ng

tem

pera

ture

issh

ow

nin

Fig

.1

0(b

).It

isn

ote

dth

at

the

valu

eo

f1

Ein

crease

dw

ith

incr

easi

ng

an

neali

ng

tem

pera

ture

.

4.

Dis

cu

ssio

n

4.1

.E

ffec

tof

the

pro

cess

ing

met

hod

(CC

vs.

DC

)on

eari

ng

beh

avio

r

Ho

tb

an

ds

of

AA

51

82

alu

min

um

all

oy

pro

du

ced

by

the

DC

an

d

CC

pro

cess

ing

ex

hib

itsi

gn

ifica

ntl

yd

iffe

ren

tfe

atu

res

ofm

icro

stru

ture

an

dte

xtu

re.T

he

DC

ho

tb

an

dp

oss

ess

es

are

cry

stall

ized

gra

in

stru

ctu

rean

da

stro

ng

cub

ete

xtu

re,

wh

ere

as

the

CC

ho

tb

an

d

ex

hib

its

ad

efo

rmed

stru

ctu

rean

da

stro

ng

bfi

ber

roll

ing

tex

­

20

12

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

Fig

.8

.R

ecr

yst

all

izati

on

tex

ture

of

the

cold

­ro

lled

CC

AA

51

82

alu

min

um

all

oy

(a)

wit

ho

ut

an

d(b

)w

ith

pre

­tre

atm

en

tan

d(c

)co

ld­r

oll

ed

DC

AA

51

82

alu

min

um

all

oy

wit

h

pre

­tre

atm

en

t(T

=3

71

◦C

).

ture

.A

fter

an

neali

ng

at

45

4◦C

for

3h

,th

eC

Ch

ot

ban

dis

full

y

recr

yst

all

ized

.T

he

cub

ere

cry

stall

izati

on

tex

ture

of

the

CC

all

oy

is

sig

nifi

can

tly

weak

er

than

that

of

the

DC

all

oy

.Du

rin

gro

llin

gin

itia

l

ori

en

tati

on

sare

gra

du

all

yro

tate

dto

the

bfi

ber

com

po

nen

t.T

he

ev

olu

tio

no

fte

xtu

red

uri

ng

roll

ing

isst

ron

gly

aff

ect

ed

by

the

init

ial

tex

ture

. Liu

et

al.

(20

04

a)

stu

die

dth

eeff

ect

ofin

itia

lte

xtu

reo

nte

ture

ev

olu

tio

nin

cold

­ro

lled

AA

51

82

alu

min

ium

all

oy

.Th

ey

fou

nd

that

the

cub

e­o

rien

ted

gra

ins

rota

tem

ore

slo

wly

tow

ard

sth

eb

fib

er

com

po

nen

tth

an

the

oth

er

gra

ins

wit

hu

nst

ab

leo

rien

tati

on

s.

Th

est

ron

gin

itia

lcu

be

tex

ture

inth

eD

Call

oy

giv

es

rise

toa

weak

bfi

ber

roll

ing

tex

ture

wit

hm

ore

rem

ain

ing

cub

e­o

rien

ted

gra

ins

aft

er

ag

iven

roll

ing

red

uct

ion

.T

he

bfi

ber

roll

ing

tex

ture

inalu

­

min

um

all

oy

sp

rom

ote

seari

ng

ess

en

tiall

yat

45

◦w

ith

resp

ect

toth

e

RD

,w

here

as

the

cub

ere

cry

stall

izati

on

tex

ture

pro

du

ces

sym

met­

rica

l0

/90

◦ears

.T

he

ev

olu

tio

no

feari

ng

du

rin

gro

llin

gd

ep

en

ds

on

the

ab

ilit

yto

bala

nce

the

two

typ

es

of

tex

ture

s.E

ng

ler

et

al.

(20

07

)

dem

on

stra

ted

the

form

ati

on

of

asu

itab

lero

llin

gte

xtu

rew

ith

min

­

imu

meari

ng

req

uir

ed

the

op

tim

um

com

bin

ati

on

of

the

stre

ng

tho

f

Fig

.9

.V

ari

ati

on

inth

e(a

)4

5◦

eari

ng

valu

ean

d(b

)d

elt

aeari

ng

valu

ew

ith

an

neali

ng

tem

pera

ture

for

the

CC

AA

51

82

alu

min

um

all

oy

wit

han

dw

ith

ou

tp

re­t

reatm

en

t.

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

20

13

Fig

.1

0.

Vari

ati

on

inth

e(a

)0

/45

◦eari

ng

valu

ean

d(b

)d

elt

aeari

ng

valu

ew

ith

an

neali

ng

tem

pera

ture

for

the

DC

AA

51

82

alu

min

um

all

oy

wit

hp

re­t

reatm

en

t.

cub

ete

xtu

rein

the

init

ialm

ate

rialan

dam

ou

nt

of

sub

seq

uen

tco

ld

roll

ing

. Fig

.5sh

ow

sth

atth

eco

ldro

llin

gre

du

ctio

nco

rresp

on

din

gto

min

imu

meari

ng

isab

ou

t8

3%

for

the

DC

AA

51

82

alu

min

um

all

oy

.

Th

e4

5◦

eari

ng

valu

eo

fth

eC

Call

oy

incr

ease

sw

ith

incr

easi

ng

roll

ing

red

uct

ion

.It

isab

ou

t7

.5%

wh

en

the

cold

roll

ing

red

uct

ion

reach

es

83

%.

Ino

rder

too

bta

inth

esa

me

eari

ng

valu

eas

the

DC

all

oy

,th

e

cold

roll

ing

red

uct

ion

of

the

CC

all

oy

mu

stb

ere

du

ced

to5

1%

sin

ce

the

CC

all

oy

do

es

no

th

av

een

ou

gh

rem

ain

ing

cub

eco

mp

on

en

tto

bala

nce

the

bfi

ber

roll

ing

tex

ture

.

Th

eco

ld­r

oll

ed

CC

all

oy

po

ssess

es

ast

ron

gb

fib

er

roll

ing

tex

­

ture

,le

ad

ing

tola

rge

45

◦ears

.A

sre

cry

stall

izati

on

pro

ceed

s,th

e

vo

lum

efr

act

ion

ofth

ecu

be

com

po

nen

tin

crease

s,w

here

as

the

vo

um

efr

act

ion

ofth

eb

fib

er

com

po

nen

td

ecr

ease

s.T

here

fore

,th

e4

5◦

eari

ng

valu

ed

ecr

ease

sas

recr

yst

all

izati

on

pro

ceed

s.A

fter

com

ple

te

recr

yst

all

izati

on

,th

eC

Call

oy

stil

lE

xh

ibit

s4

5◦

ears

du

eto

its

rela

­

tiv

ely

stro

ng

Rco

mp

on

en

t.T

he

deep

­dra

wn

cup

of

the

cold

­ro

lled

DC

all

oy

ex

hib

its

eig

ht

ears

at

0◦,4

5◦

an

d9

0◦

toR

D,a

nd

the

0◦

ear­

ing

valu

eis

hig

her

than

the

45

◦eari

ng

valu

e.

As

recr

yst

all

izati

on

pro

ceed

s,th

ev

olu

me

fract

ion

so

fth

ecu

be

an

db

fib

er

com

po

nen

ts

decr

ease

,le

ad

ing

toa

decr

ease

inth

e0

◦eari

ng

valu

e.

Aft

er

com

­

ple

tere

cry

stall

izati

on

,th

eeari

ng

pro

file

isch

an

ged

fro

meig

ht

ears

tofo

ur

ears

,an

dth

e4

5◦

eari

ng

valu

eis

slig

htl

ylo

wer

than

befo

re

recr

yst

all

izati

on

.

Th

ep

re­t

reatm

en

to

fth

eC

Call

oy

pri

or

toco

ldro

llin

gals

oaff

ect

s

the

eari

ng

beh

av

ior

of

cold

­ro

lled

an

dre

cry

stall

ized

sheets

.In

the

cold

­ro

lled

state

,th

eC

Call

oy

wit

ho

ut

pre

­tre

atm

en

th

as

larg

er

45

ears

than

the

all

oy

wit

hp

re­t

reatm

en

td

ue

toit

sst

ron

ger

bfi

ber

roll

ing

tex

ture

.In

the

recr

yst

all

ized

state

,th

eC

Call

oy

wit

ho

ut

pre

­

treatm

en

tex

hib

its

asl

igh

tly

low

er

eari

ng

valu

eth

an

the

all

oy

wit

h

pre

­tre

atm

en

t.

Fig

.12

.C

om

pari

son

betw

een

the

calc

ula

ted

an

dm

easu

red

45

◦eari

ng

valu

es

for

CC

an

dD

CA

A5

18

2alu

min

um

all

oy

s.

4.2

.R

elati

on

ship

bet

wee

nea

rin

gvalu

ean

dte

xtu

revolu

me

fract

ion

s

Fig

.11

sho

ws

the

sim

ula

ted

eari

ng

pro

file

so

fth

esi

xsi

ng

lete

ture

com

po

nen

tscu

be,

r­cu

be,

Go

ss,

S,

B,

an

dC

.T

he

sim

ula

tio

ns

were

con

du

cted

base

do

nth

efo

rmu

lafo

rth

ean

gu

lar

dep

en

den

ce

of

the

q­v

alu

ed

eri

ved

by

Man

(20

02

),w

hic

hw

ere

ex

ten

ded

to

qu

an

tify

the

eff

ect

ofcr

yst

all

og

rap

hic

tex

ture

on

eari

ng

pro

file

.Th

e

Fig

.11

.E

ari

ng

pro

file

so

fin

div

idu

alte

xtu

reco

mp

on

en

ts.S

ixte

xtu

reco

mp

on

en

ts(a

)cu

be,r

­cu

be,G

oss

,(b

)B

,San

dC

are

sele

cted

.Th

ese

eari

ng

pro

file

sca

nb

eg

rou

ped

into

two

typ

es:

45

◦ty

pe,s

uch

as

r­cu

be,B

,San

dC

wh

ose

eari

ng

peak

sap

pear

near

45

◦to

the

RD

,an

d0

/90

◦ty

pe,s

uch

as

cub

ean

dG

oss

wh

ose

eari

ng

peak

sap

pear

inth

ero

llin

g

an

dtr

an

svers

ed

irect

ion

s.

20

14

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

Fig

.1

3.

Rela

tio

nsh

ipb

etw

een

the

eari

ng

valu

ean

dte

xtu

rev

olu

me

fract

ion

sfo

rC

Can

dD

CA

A5

18

2alu

min

um

all

oy

s.(a

)4

5◦

eari

ng

valu

ean

d(b

)d

elt

aeari

ng

valu

e.

mate

rialp

ara

mete

rsin

the

form

ula

were

ob

tain

ed

fro

mth

ew

ork

of

Man

an

dH

uan

g(2

00

1).

Fo

rth

ecu

be

ori

en

tati

on

,ears

ap

pear

at

0◦

an

d9

0◦

wit

hre

spect

toth

eR

Dw

ith

an

idealo

rth

otr

op

icsy

mm

etr

y.

Th

er­

cub

eo

rien

tati

on

can

be

tran

sfo

rmed

toth

ecu

be

ori

en

tati

on

by

the

45

◦ro

tati

on

ab

ou

tth

en

orm

ald

irect

ion

(ND

).T

hu

s,th

eear­

ing

beh

av

ior

of

the

r­cu

be

com

po

nen

tis

ex

act

lyo

pp

osi

teto

that

of

the

cub

eco

mp

on

en

t.T

he

max

imu

mear

po

siti

on

islo

cate

dat

45

toth

eR

D.

Inco

ntr

ast

toth

ecu

be

ori

en

tati

on

,th

eeari

ng

peak

so

f

the

B,

S,

an

dC

com

po

nen

tsap

pear

at

ab

ou

t5

6◦,

47

◦,

an

d3

2◦

to

the

RD

,re

spect

ively

.Fo

rth

eG

oss

ori

en

tati

on

,it

sm

ax

imu

mears

occ

ur

at

90

◦,a

nd

its

tro

ug

his

loca

ted

near

45

◦.T

he

r­G

oss

ori

en

ta­

tio

nca

nb

etr

an

sfo

rmed

toth

eG

oss

ori

en

tati

on

by

the

90

◦ro

tati

on

ab

ou

tth

eN

D.

Th

er­

Go

sso

rien

tati

on

resu

lts

inm

ax

imu

mears

at

0◦.

Inp

oly

cry

stall

ine

mate

rials

,th

eeari

ng

beh

av

ior

of

alu

min

um

sheets

du

rin

gd

eep

dra

win

gd

ep

en

ds

stro

ng

lyo

ncr

yst

all

og

rap

hic

tex

ture

.Liu

an

dM

orr

is(2

00

3)

inv

est

igate

dth

ete

xtu

reev

olu

tio

n

du

rin

gco

ldro

llin

go

falu

min

um

all

oy

s.T

hey

est

ab

lish

ed

the

math

­

em

ati

cal

form

ula

eo

fth

ete

xtu

rev

olu

me

fract

ion

san

dtr

ue

roll

ing

stra

into

qu

an

tify

tex

ture

ev

olu

tio

n.

Mo

reo

ver,

Liu

an

dM

orr

is

(20

05

)u

sed

the

Joh

nso

n–

Meh

l–A

vra

mi–

Ko

lmo

go

rov

(JM

AK

)eq

ua­

tio

nto

desc

rib

eth

ere

lati

ve

chan

ge

inth

ete

xtu

rev

olu

me

fract

ion

s

du

rin

gis

oth

erm

al

an

neali

ng

.T

hu

s,th

ete

xtu

reev

olu

tio

nd

uri

ng

roll

ing

an

dan

neali

ng

can

be

pre

dic

ted

by

usi

ng

sim

ple

rela

tio

ns

betw

een

the

tex

ture

vo

lum

efr

act

ion

san

dp

roce

ssin

gp

ara

mete

rs.

Ino

rder

top

red

ict

the

eari

ng

valu

eb

ase

do

nte

xtu

red

ata

,it

is

desi

rab

leto

est

ab

lish

the

em

pir

icalr

ela

tio

nsh

ipb

etw

een

the

eari

ng

valu

ean

dth

ete

xtu

rev

olu

me

fract

ion

s.T

he

cub

e,G

oss

an

dr­

Go

ss

com

po

nen

tsp

rod

uce

0/9

0◦

eari

ng

,w

hil

eth

er­

cub

ean

db

fib

er

com

po

nen

tsg

ive

rise

to4

5◦

eari

ng

.T

he

eff

ect

of

the

rem

ain

der

com

po

nen

to

nth

eeari

ng

beh

av

ior

may

be

neg

lect

ed

beca

use

the

ori

en

tati

on

sin

the

rem

ain

ing

reg

ion

are

betw

een

the

cub

e,r

­cu

be,

Go

ss,r­

Go

ssan

db

fib

er

ori

en

tati

on

reg

ion

s.T

here

fore

,th

eeari

ng

perc

en

tag

e(E

)ca

nb

eex

pre

ssed

as

afu

nct

ion

ofth

ete

xtu

rev

olu

me

fract

ion

s,i.e.,

E=

f cu

be

Mcu

be

Mcu

be­r

an

do

m+

f r­c

ub

eM

r­cu

be

Mr­

cub

e­r

an

do

m+

f Go

ssM

Go

ss

MG

oss

­ran

do

m

+f r

­Go

ssM

r­G

oss

Mr­

Go

ss­r

an

do

m+

f bM

b

Mb

­ran

do

m

(3)

wh

ere

f iis

aco

effi

cien

tw

hic

hre

flect

sth

eeff

ect

ofth

ete

xtu

reco

po

nen

to

neari

ng

beh

av

ior.

Th

ev

alu

eo

ff r

­cu

be

sho

uld

be

eq

ual

to

neg

ati

ve

f cu

be

acc

ord

ing

toth

eeari

ng

pro

file

so

fth

ecu

be

an

dr­

cub

eco

mp

on

en

tssh

ow

nin

Fig

.1

1.B

yfi

ttin

gth

e4

5◦

eari

ng

valu

e

an

dte

xtu

rev

olu

me

fract

ion

su

sin

gE

q.(3

),th

ev

alu

eo

ff c

ub

e,f G

oss

,

f r­G

oss

an

df b

was

dete

rmin

ed

tob

e−

4.3

3,−

0.3

7,−

1.1

5an

d4

.34

,

resp

ect

ively

.T

he

corr

ela

tio

nco

effi

cien

to

fth

eli

near

fit

was

0.9

62

.

Fig

.12

sho

ws

the

com

pari

son

betw

een

the

calc

ula

ted

an

dm

easu

red

45

◦eari

ng

valu

es

on

vari

ou

ssa

mp

les

un

der

dif

fere

nt

con

dit

ion

so

f

cold

roll

ing

an

dan

neali

ng

pra

ctic

e.

Neg

ati

ve

valu

es

of

f cu

be,

f Go

ss

an

df r

­Go

ssin

dic

ate

that

the

cub

e,

Go

ssan

dr­

Go

ssco

mp

on

en

ts

decr

ease

the

45

◦eari

ng

valu

e.T

he

ab

solu

tev

alu

eo

ff c

ub

eis

sim

ilar

toth

at

off b

.Hig

hab

solu

tev

alu

es

off c

ub

ean

df b

mean

that

the

cub

e

an

db

fib

er

com

po

nen

tsh

av

ea

mu

chla

rger

eff

ect

on

the

ov

era

ll

an

iso

tro

py

du

rin

gd

eep

dra

win

gth

an

the

Go

ssan

dr­

Go

ssco

mp

nen

ts.I

fth

eeff

ect

of

the

Go

ssan

dr­

Go

ssco

mp

on

en

tsis

neg

lect

ed

,

Eq

. (3

)ca

nb

esi

mp

lifi

ed

as

E=

f

(

Mr­

cub

e

Mr­

cub

e­r

an

do

m+

Mb

Mb

­ran

do

m

−M

cub

e

Mcu

be­r

an

do

m

)

(4)

Eq

.(4

)is

very

sim

ilar

toth

at

rep

ort

ed

by

An

ders

son

an

d

Naess

(19

86

).Fig

.1

3(a

)sh

ow

sth

ere

lati

on

ship

betw

een

the

45

◦eari

ng

valu

ean

dth

ev

alu

eo

fM

r­cu

be/M

r­cu

be­r

an

do

m

+M

b/M

b­r

an

do

m−

Mcu

be/M

cub

e­r

an

do

m.

Th

ev

alu

eo

ff

was

dete

min

ed

tob

e4

.33

wit

ha

corr

ela

tio

nco

effi

cien

to

f0

.96

2.

Fo

rth

e

mix

ed

tex

ture

sw

ith

eig

ht

ears

,d

iffe

ren

t0

◦,

45

◦an

d9

0◦

eari

ng

valu

es

were

ob

tain

ed

.T

hese

data

of

eari

ng

an

dte

xtu

reca

nn

ot

be

sim

ult

an

eo

usl

yp

rese

nt

inE

q.

(4).

Acc

ord

ing

toE

ng

ler

an

dK

alz

(20

04

),1

Eis

very

use

ful

tore

pre

sen

tth

eeari

ng

lev

el

of

all

typ

es

of

eari

ng

pro

file

s.T

hu

s,th

ere

lati

on

ship

betw

een

the

valu

eo

f1

E

an

dte

xtu

rev

olu

me

fract

ion

can

be

est

ab

lish

ed

by

Eq

. (4

),as

sho

wn

inFig

.1

3(b

).In

this

case

,th

ev

alu

eo

ff

was

dete

rmin

ed

tob

e3

.79

.

Fig

.1

3(b

)sh

ow

sth

at

the

min

imiz

ati

on

of

eari

ng

can

be

ach

iev

ed

by

bala

nci

ng

the

cub

e,r

­cu

be

an

db

fib

er

com

po

nen

ts.

5.

Co

nclu

sio

ns

Th

eev

olu

tio

no

fte

xtu

rean

deari

ng

of

CC

an

dD

CA

A5

18

2alu

­

min

um

all

oy

sd

uri

ng

roll

ing

an

dan

neali

ng

was

inv

est

igate

d.

Th

e

foll

ow

ing

con

clu

sio

ns

are

dra

wn

fro

mth

isst

ud

y.

(1)

Aft

er

an

neali

ng

at4

54

◦C

for

3h

,th

eC

CA

A5

18

2alu

min

um

all

oy

po

ssess

es

aw

eak

recr

yst

all

izati

on

tex

ture

,lead

ing

tov

ery

small

45

◦ears

.Th

e4

5◦

eari

ng

valu

ein

crease

sw

ith

incr

easi

ng

roll

ing

red

uct

ion

.A

tla

rge

roll

ing

red

uct

ion

s,th

eeari

ng

valu

eo

fth

e

cold

­ro

lled

CC

sheet

isla

rger

than

that

of

the

cold

­ro

lled

DC

sheet.

(2)

Th

eD

CA

A5

18

2alu

min

um

all

oy

po

ssess

es

ast

ron

gcu

be

recr

ys­

tall

izati

on

tex

ture

,p

rod

uci

ng

0/9

0◦

eari

ng

.A

sth

eco

ldro

llin

g

red

uct

ion

incr

ease

s,th

ev

olu

me

fract

ion

of

the

cub

eco

mp

nen

td

ecr

ease

s,w

here

as

the

vo

lum

efr

act

ion

of

the

bfi

ber

J.Li

etal.

/Jo

urn

alof

Mate

rials

Pro

cess

ing

Tec

hn

olo

gy

21

0 (

20

10

) 2

00

7–

20

15

20

15

com

po

nen

tin

crease

s.A

fter

45

%co

ldro

llin

gre

du

ctio

n,

the

deep

­dra

wn

cup

ex

hib

its

eig

ht

ears

at

0◦,

45

◦an

d9

0◦

toth

e

RD

.T

he

alu

min

um

sheet

wit

hm

inim

um

eari

ng

iso

bta

ined

at

ab

ou

t8

3%

roll

ing

red

uct

ion

.

(3)

Th

e7

1.5

%co

ld­r

oll

ed

CC

sheet

wit

ho

ut

pre

­tre

atm

en

tp

os­

sess

es

asi

gn

ifica

ntl

yh

igh

er

45

◦eari

ng

valu

eth

an

the

cold

­ro

lled

CC

sheet

wit

hp

re­t

reatm

en

t.T

he

45

◦eari

ng

valu

e

an

dd

elt

aeari

ng

valu

ed

ecr

ease

wit

hin

creasi

ng

an

neali

ng

tem

­

pera

ture

.A

fter

com

ple

tere

cry

stall

izati

on

,th

eC

Call

oy

stil

l

sho

ws

45

◦ears

,an

dth

e4

5◦

eari

ng

valu

eo

fth

eall

oy

wit

ou

tp

re­t

reatm

en

tis

slig

htl

ylo

wer

than

that

of

the

all

oy

wit

h

pre

­tre

atm

en

t.

(4)

Th

e7

1.5

%co

ld­r

oll

ed

DC

sheet

ex

hib

its

eig

ht

ears

at

0◦,4

5◦

an

d

90

◦to

the

RD

,an

dth

e0

◦eari

ng

valu

eis

larg

er

than

that

the

45

eari

ng

valu

e.D

uri

ng

recr

yst

all

izati

on

an

neali

ng

,th

est

ren

gth

of

the

cub

eco

mp

on

en

tw

eak

en

s,le

ad

ing

toa

decr

ease

inth

e0

/90

eari

ng

valu

e.A

fter

com

ple

tere

cry

stall

izati

on

,th

eD

Call

oy

als

o

Ex

hib

its

45

◦ears

.

(5)

An

em

pir

ical

rela

tio

nsh

ipb

etw

een

the

eari

ng

valu

ean

dte

ture

vo

lum

efr

act

ion

sh

as

been

est

ab

lish

ed

.M

inim

izati

on

of

eari

ng

can

be

ach

iev

ed

by

bala

nci

ng

the

cub

e,

r­cu

be

an

db

fib

er

com

po

nen

ts.

Ack

no

wle

dg

me

nts

Th

isw

ork

was

sup

po

rted

by

the

Nati

on

alN

atu

ralSci

en

ceFo

un

­

dati

on

of

Ch

ina

(Gra

nt

No

.50

87

40

97

).

Re

fere

nce

s

An

ders

son

,B

.,N

aess

,S.E

.,1

98

6.E

ari

ng

an

dte

xtu

rein

all

oy

sA

A5

05

2an

dA

A3

00

4.

In:

Sta

rke,

E.A

.,San

ders

,T

.H.

(Ed

s.),

Al

All

oy

s—T

heir

Ph

ysi

cal

an

dM

ech

an

ical

Pro

pert

ies,

vo

l.1

.In

tern

ati

on

al

Co

nfe

ren

ceh

eld

at

the

Un

ivers

ity

of

Vir

gin

ia,

Ch

arl

ott

esv

ille

,V

irg

inia

,1

5­2

0Ju

ne

19

86

,E

ng

ineeri

ng

Mate

rials

Ad

vis

ory

Ser­

vic

es,

Vir

gin

ia,p

p.4

99

–5

11

.B

un

ge,H

.J.,

19

82

.T

ex

ture

An

aly

sis

inM

ate

rials

Sci

en

ce.B

utt

erw

ort

hs

Pu

bli

cati

on

,Lo

nd

on

.E

ng

ler,

O.,

Kalz

,S.,

20

04

.Sim

ula

tio

no

feari

ng

pro

file

sfr

om

tex

ture

data

by

mean

so

fa

vis

co­p

last

icse

lf­c

on

sist

en

tp

oly

cry

stalp

last

icit

yap

pro

ach

.Mate

r.Sci

.En

g.

A3

73

,35

0–

36

2.

En

gle

r,O

.,Lö

chte

,L.,

Hir

sch

,J.

,2

00

7.

Th

rou

gh

­pro

cess

sim

ula

tio

no

fte

xtu

rean

dp

rop

ert

ies

du

rin

gth

eth

erm

om

ech

an

ical

pro

cess

ing

of

alu

min

ium

sheets

.A

cta

Mate

r.5

5,5

44

9–

54

63

.Liu

,W

.C.,

Mo

rris

,J.

G.,

20

03

.C

om

pari

son

of

the

tex

ture

ev

olu

tio

nin

cold

roll

ed

DC

an

dSC

AA

51

82

alu

min

um

all

oy

s.M

ate

r.Sci

.En

g.A

33

9,1

83

–1

93

.Liu

,W.C

.,M

orr

is,J

.G.,

20

04

.Qu

an

tita

tiv

ean

aly

sis

ofte

xtu

reev

olu

tio

nin

cold

­ro

lled

,co

nti

nu

ou

s­ca

stA

A5

xx

x­s

eri

es

alu

min

um

all

oy

s.M

eta

ll.T

ran

s.3

5A

,26

5–

27

7.

Liu

,W

.C.,

Mo

rris

,J.

G.,

20

05

.E

vo

luti

on

of

recr

yst

all

izati

on

an

dre

cry

stall

izati

on

tex

­tu

rein

con

tin

uo

us­

cast

AA

30

15

alu

min

um

all

oy

.Meta

ll.T

ran

s.3

6A

,28

29

–2

84

8.

Liu

,W

.C.,

Zh

ai,

T.,

Mo

rris

,J.

G.,

20

03

.C

om

pari

son

of

recr

yst

all

izati

on

an

dre

cry

stal­

lizati

on

tex

ture

sin

cold

roll

ed

DC

an

dC

CA

A5

18

2alu

min

um

all

oy

s.M

ate

r.Sci

.E

ng

.A3

58

,84

–9

3.

Liu

,W

.C.,

Zh

ai,

T.,

Man

,C

.­S.,

Rad

hak

rish

nan

,B

.,M

orr

is,J.

G.,

20

04

a.E

ffect

of

init

ial

tex

ture

on

tex

ture

ev

olu

tio

nin

cold

­ro

lled

AA

51

82

alu

min

ium

all

oy

.P

hil

os.

Mag

.84

,33

05

–3

32

1.

Man

,C

.­S.,

20

02

.O

nth

er­

valu

eo

fte

xtu

red

sheet

meta

ls.

Int.

J.P

last

ic.

18

,1

68

3–

17

06

.M

an

,C­.

S.,

Hu

an

g,M

.J.,

20

01

.Id

en

tifi

cati

on

ofm

ate

rialp

ara

mete

rsin

yie

ldfu

nct

ion

san

dfl

ow

rule

sfo

rw

eak

lyte

xtu

red

sheets

ofc

ub

icm

eta

ls.I

nt.

J.N

on

­Lin

ear

Mech

.3

6,5

01

–5

14

.Sark

ar,

S.,

Well

s,M

.A.,

Po

ole

,W.J

.,2

00

6.S

oft

en

ing

beh

av

ior

ofco

ldro

lled

con

tin

uo

us

cast

an

din

go

tca

stalu

min

um

all

oy

AA

57

54

.Mate

r.Sci

.En

g.A

42

1,2

76

–2

85

.Z

hao

,Y.M

.,M

orr

is,J

.G.,

20

05

.Co

mp

ari

son

ofth

ete

xtu

reev

olu

tio

no

fd

irect

chil

lan

dco

nti

nu

ou

sca

stA

A5

05

2h

ot

ban

ds

du

rin

gis

oth

erm

al

an

neali

ng

.M

eta

ll.T

ran

s.3

6A

,25

05

–2

51

5.