The instability of plastic deformation in as-quenched martensite

被引：0
|
作者：
Wyslych, P
Mazancova, E
Mazanec, K
机构：
[1] TECH UNIV OSTRAVA,INST MAT ENGN,OSTRAVA 70833,CZECH REPUBLIC
[2] RES INST NEW MET WORKS,OSTRAVA 70702,CZECH REPUBLIC
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1997年 / 234卷
关键词：
rate sensitivity parameter; As-quenched martensite; plastic deformation;
D O I：
10.1016/S0921-5093(97)00284-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The paper reports on an investigation of the temperature dependence of the rate sensitivity parameter in as-quenched martensite of Fe-24.1wt.%Ni-0.40wt.%C alloy. Most of the ascertained values of the rate sensitivity parameter were negative. Apparently, the rates of dislocation motion surpassed the rates at which the interaction forces attained their maxima. Simultaneously, the temperature ranges of the plastic deformation instabilities were determined. At low temperatures, the activation parameters of plastic deformation U-0=0.31 eV and v* = 10 b(3) were determined. The probable mechanism of plastic deformation in this temperature range was proposed. (C) 1997 Elsevier Science S.A.
引用
收藏
页码：513 / 516
页数：4
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