Developing Processing Routes for the Equal-Channel Angular Pressing of Age-Hardenable Aluminum Alloys

被引：36
作者：
Duan, Zhi Chao [1 ,2 ]
Chinh, Nguyen Q. [3 ]
Xu, Cheng [1 ,2 ,4 ]
Langdon, Terence G. [1 ,5 ]
机构：
[1] Univ So Calif, Dept Aerosp & Mech Engn, Los Angeles, CA 90089 USA
[2] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
[3] Eotvos Lorand Univ, Dept Mat Phys, H-1117 Budapest, Hungary
[4] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
[5] Univ Southampton, Sch Engn Sci, Mat Res Grp, Southampton SO17 1BJ, Hants, England
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2010年 / 41A卷 / 04期
关键词：
AL-MG ALLOY; MICROSTRUCTURAL EVOLUTION; GRAIN-REFINEMENT; TEXTURE EVOLUTION; ECAP; EXTRUSION; SUPERPLASTICITY; PRECIPITATION; TEMPERATURE; PRINCIPLES;
D O I：
10.1007/s11661-009-0020-1
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The processing of age-hardenable aluminum alloys by equal-channel angular pressing (ECAP) was investigated using three different Al-Zn-Mg alloys. The results show that it is relatively easy to conduct the ECAP at an elevated temperature of 473 K, but this leads to a weakening of the alloy rather than a strengthening. The processing by ECAP may be performed successfully at room temperature provided it is conducted fairly quickly (within similar to 10 minutes) after quenching from the solution treatment. It is necessary also to optimize the solution treatment conditions for each alloy composition. Under optimum conditions, good strengthening is achieved even after a single pass in ECAP.
引用
收藏
页码：802 / 809
页数：8
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