Microstructural evolution during annealing of 5052 Al alloy deformed at cryogenic temperature

被引：0

作者：

Gang, Lli Gu ^{[1
]}

Lee, Young Sin ^{[2
]}

Park, Kyung Tae ^{[3
]}

Nam, Won Jong ^{[1
]}

机构：

[1] Kookmin Univ, Sch Adv Mat Engn, Seoul 130702, South Korea

[2] Kookmin Univ, Sch Adv Mech & Automot Engn, Seoul 136702, South Korea

[3] Hanbat Univ, Div Adv Mat Sci & Engn, Taejon 305343, South Korea

来源：

ADVANCES IN NANOMATERIALS AND PROCESSING, PTS 1 AND 2 | 2007年 / 124-126卷

关键词：

ultrafine grain; cryogenic temperature; annealing; recovery; recrystallization;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The activation energy for recovery and recrystallization was calculated using DSC data. The annealing below 250 degrees C resulted in the bimodal grain size distribution, while that above 300 degrees C resulted in the uniform distribution of coarse grains. The formation of a bimodal microstructure would be responsible for the good combination of uniform elongation and tensile strength. Additionally, the little variation of hardness for different annealing time at 300 degrees C also indicated that mechanical properties of deformed and annealed 5052 Al alloy were significantly influenced by the volume fraction of recrystallized grains rather than the coarsening of recrystallized grains.

引用

页码：1393 / +

页数：2

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