Annealing behaviour of ultrafine-grained aluminium

被引：13
|
作者：
Sun, Pei-Ling [1 ]
Zhao, Yonghao [2 ]
Tseng, Tien-Yu [3 ]
Su, Jiunn-Ren [3 ]
Lavernia, Enrique J. [4 ]
机构：
[1] Feng Chia Univ, Dept Mat Sci & Engn, Taichung 40724, Taiwan
[2] Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanostruct Mat Res Ctr, Nanjing 210094, Jiangsu, Peoples R China
[3] China Steel Corp, New Mat Res & Dev Dept, Kaohsiung 81233, Taiwan
[4] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA
来源：
PHILOSOPHICAL MAGAZINE | 2014年 / 94卷 / 05期
基金：
中国国家自然科学基金;
关键词：
aluminium; hot and cold rolling; annealing; cooling rate; mechanical property; HIGH-TENSILE DUCTILITY; THERMAL-STABILITY; NANOCRYSTALLINE; STRENGTH; GROWTH; SIZE; MICROSTRUCTURE; STABILIZATION; SUBDIVISION; ALLOYS;
D O I：
10.1080/14786435.2013.856526
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrafine-grained (UFG) aluminium, processed under fast cooling rate conditions (12Ks(-1)) following hot rolling (water quenched) exhibits enhanced thermal stability due to an increase in concentration of solid solution atoms, relative to the furnace cooled material. The influence of fraction recrystallized on yield stress and uniform elongation is reported to exhibit a slight deviation from the linear behaviour that is anticipated on the basis of the rule-of-mixtures. This result was rationalized on the basis of differences in the spatial distributions of the UFG and coarse grains and/or dislocation recovery mechanisms.
引用
收藏
页码：476 / 491
页数：16
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