THERMALLY ACTIVATED DISLOCATION GLIDE IN MAGNETIC FENI-INVAR ALLOYS

被引:0
|
作者
RETAT, I [1 ]
机构
[1] TECH UNIV BRAUNSCHWEIG,INST MET PHYS & NUKL FESTKORPERPHYS,W-3300 BRAUNSCHWEIG,GERMANY
关键词
D O I
10.1088/0953-8984/2/49/005
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The theory of thermally activated motion of dislocations yields a cusp in the graph of activation free enthalpy Delta G versus temperature when applied to FeNi-invar alloys. This is attributed to a magnetic induced hardening of FeNi. A theory of thermal activation is developed taking into account the magnetic hardening and the results are compared with CRSS and yield stress measurements of FeNi and FeNiMn alloys.
引用
收藏
页码:9777 / 9785
页数:9
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