MECHANISM OF HYDROGEN-INDUCED SOFTENING AND HARDENING IN IRON

被引：45
作者：
KIMURA, H
MATSUI, H
机构：
[1] Tohoku Univ, Sendai, Jpn, Tohoku Univ, Sendai, Jpn
来源：
SCRIPTA METALLURGICA | 1987年 / 21卷 / 03期
关键词：
IRON AND STEEL METALLOGRAPHY - Lattice Defects;
D O I：
10.1016/0036-9748(87)90221-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Hydrogen causes softening in high purity iron at temperatures between 200K and 300K. The softening is not transient. Hydrogen causes hardening below 200K. It is caused by pinning of kinks on screw dislocations. The effect of hydrogen on the yield and flow stresses of iron depends on specimen characteristics and experimental conditions. In particular, the purity, charging conditions and temperatures are important factors controlling the effect.
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页码：319 / 324
页数：6
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