THE EFFECT OF TEMPERATURE ON STRAIN-RATE SENSITIVITY IN AN AL-MG-SI ALLOY

被引：71
|
作者：
LING, CP
MCCORMICK, PG
机构：
[1] Department of Mechanical and Materials Engineering, University of Western Australia, Nedlands
来源：
ACTA METALLURGICA ET MATERIALIA | 1993年 / 41卷 / 11期
关键词：
D O I：
10.1016/0956-7151(93)90042-Q
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of temperature on strain rate sensitivity has been studied in an Al-Mg-Si alloy in the range of dynamic strain ageing. Two regimes of behaviour were observed which depended on the temperature. At low temperatures (T less-than-or-equal-to 303 K) it was possible to correlate all strain rate sensitivity measurements with a single strain/strain rate/temperature parameter. In the high temperature regime the temperature and strain rate dependence of the strain rate sensitivity deviated significantly from that measured at low temperatures. The two regimes of behaviour were found to correspond with the normal and inverse Portevin-Le Chatelier effect.
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页码：3127 / 3131
页数：5
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