High-pressure torsion using ring specimens

被引：132
|
作者：
Harai, Yosuke [1 ]
Ito, Yuki [1 ]
Horita, Zenji [1 ]
机构：
[1] Kyushu Univ, Fac Engn, Dept Mat Sci & Engn, Fukuoka 8190395, Japan
来源：
SCRIPTA MATERIALIA | 2008年 / 58卷 / 06期
关键词：
severe plastic deformation; high-pressure torsion; ultrafine grains; pure Al;
D O I：
10.1016/j.scriptamat.2007.10.037
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A facility is developed for high-pressure torsion (HPT) using ring samples and the results are compared with those of conventional disk HPT samples. With pure Al (99.99%), both types of HPT are consistent. When hardness values are plotted against equivalent strain, they fall on a single line having a maximum at a strain of similar to 2 followed by a steady-state at a strain of similar to 6 or more where hardness remains constant with straining. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：469 / 472
页数：4
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