Deformation behavior of tantalum and a tantalum tungsten alloy

被引：75

作者：

Nemat-Nasser, S ^{[1
]}

Kapoor, R ^{[1
]}

机构：

[1] Univ Calif San Diego, Ctr Excellence Adv Mat, La Jolla, CA 92093 USA

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2001年 / 17卷 / 10期

关键词：

D O I：

10.1016/S0749-6419(00)00088-7

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A comparative study of the deformation behavior of tantalum and a tantalum 2.5 wt.% tungsten alloy is carried out. High strain-rate experimental data are used to develop phenomenological constitutive relations. The temperature and the strain-rate sensitivity of the flow stresses are compared. It is observed that although the flow stress for the Ta-2.5%W alloy is greater than that of Ta, the corresponding temperature and strain-rate sensitivity is less pronounced. Ta-2.5%W experiences a solid-solution softening, wherein the athermal stress component has increased, while the thermal component has decreased by the alloying. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1351 / 1366

页数：16