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5254
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1.
there is
not
obvious change in
5254
and
2618
alloy
;
the
room
temperature
strength
of
6063
alloy
is
decreased
but
the
ductility
improved
.
深
冷处理
对
2618
和
5254
合金
的
室温
力学
性能
影响
不大
，
但
降低
了
6063
合金
的
室温
拉伸
强度
，
提高
了
它
的
塑性
。
shēn
lěng chǔ lǐ
duì
liǎng qiān liù bǎi yī shí bā
hé
wǔ qiān èr bǎi wǔ shí sì
hé jīn
de
shì wēn
lì xué
xìng néng
yǐng xiǎng
bú dà
,
dàn
jiàng dī
le
liù qiān líng liù shí sān
hé jīn
de
shì wēn
lā shēn
qiáng dù
,
tí gāo
le
tā
de
sù xìng
。
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