The effect of hydrogen on dislocation dynamics

被引：502
作者：
Robertson, IM [1 ]
机构：
[1] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA
来源：
ENGINEERING FRACTURE MECHANICS | 2001年 / 68卷 / 06期
关键词：
environmental cell transmission electron microscopy; hydrogen embrittlement; dislocations; hydrogen-enhanced localized plasticity;
D O I：
10.1016/S0013-7944(01)00011-X
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Deformation studies in numerous materials have been performed in situ in a transmission electron microscope equipped with an environmental cell to elucidate the mechanisms of hydrogen embrittlement. The primary results from these studies are that solute hydrogen can increase the velocity of dislocations, increase the crack propagation rate, decrease the stacking-fault energy of 310s stainless steel and increase the propensity for edge character dislocations. Evidence from bulk mechanical property tests to support these results is also discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.
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页码：671 / 692
页数：22
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