ON THE KINETICS OF INTERGRANULAR EMBRITTLEMENT OF NICKEL BY HYDROGEN TRANSPORT FROM THE EXTERNAL SURFACE

被引：12

作者：

KIMURA, A

BIRNBAUM, HK

机构：

[1] Univ of Illinois at, Urbana-Champaign, Urbana, IL, USA, Univ of Illinois at Urbana-Champaign, Urbana, IL, USA

来源：

SCRIPTA METALLURGICA | 1987年 / 21卷 / 02期

关键词：

CHEMICAL REACTIONS - Reaction Kinetics - NICKEL METALLOGRAPHY - Lattice Defects;

D O I：

10.1016/0036-9748(87)90438-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The kinetics of intergranular hydrogen embrittlement of nickel due to hydrogen supplied at the external surface have not been previously determined. While it is known that intergranular embrittlement results from high hydrogen concentrations at grain boundaries, it is not known how this hydrogen arrives at interior grain boundaries when it is supplied at the surface. In particular, the relative roles of lattice diffusion, grain boundary diffusion, and dislocation transport have not been established. This question is addressed in the present note.

引用

页码：219 / 222

页数：4

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