Characteristics of submicron grained structure formed in aluminum by equal channel angular extrusion

被引：63
作者：
Sun, PL [1 ]
Kao, PW [1 ]
Chang, CP [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Inst Mat Sci & Engn, Kaohsiung 80424, Taiwan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 283卷 / 1-2期
关键词：
aluminum; equal channel angular extrusion; submicron grained structure; plastic deformation;
D O I：
10.1016/S0921-5093(99)00800-X
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This work has shown that submicron grained (similar to 0.35 mu m) structure can be formed by applying equal channel angular extrusion (ECAE) to epsilon=8 at room temperature. Tn addition, the resulted submicron grained structure is characterized by a random microtexture. Based on the observation, it is suggested that grain subdivision and texture evolution, as well as local boundary migration are the possible mechanisms involved in the formation of submicron grains during severe plastic deformation. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：82 / 85
页数：4
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