DETERMINATION OF FLOW-STRESS .2. RADIAL AND AXIAL TEMPERATURE DISTRIBUTION DURING TORSION TESTING

被引：13

作者：

WRIGHT, DS

SHEPPARD, T

机构：

[1] Department of Metallurgy and Materials Science, Imperial College of Science and Technology, London

来源：

METALS TECHNOLOGY | 1979年 / 6卷 / JUN期

关键词：

D O I：

10.1179/030716979803276174

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The importance of determining the specimen temperature at varying strains and strain rates during the twisting of a torsion specimen is emphasized and it is argued that previous analyses are inadequate. A three-dimensional finite-diflerence model is developed and a method of obtaining an ‘average’ temperature rise is presented. It is shown that significant temperature profiles are set up during torsion testing and that axial conduction cannot be assumed to be zero. The assumption of a laminar boundary layer is acceptable. Results are presented for two aluminium alloys. © 1979, The Metals Society. All rights reserved.

引用

页码：224 / 229

页数：6