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

页码：469 / 472

页数：4

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