Development of a multi-pass facility for equal-channel angular pressing to high total strains

被引:232
作者
Nakashima, K
Horita, Z
Nemoto, M
Langdon, TG [1 ]
机构
[1] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA
[2] Univ So Calif, Dept Mech Engn, Los Angeles, CA 90089 USA
[3] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka 8128581, Japan
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 281卷 / 1-2期
基金
日本学术振兴会;
关键词
aluminum; equal-channel angular pressing; plastic straining; ultrafine grain size;
D O I
10.1016/S0921-5093(99)00744-3
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A multi-pass facility was fabricated for equal-channel angular (ECA) pressing which gave a total strain of approximately 5 on a single passage through the die. Experiments on high purity aluminum show that, when comparisons are made at the same total strains. both the hardness and the evolution of the microstructure are identical when using the multi-pass facility or when repetitively pressing samples through a standard die containing a single shearing plane. (C) 2000 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:82 / 87
页数:6
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