Hydrogen metals and alloys cracking and its acoustic-emission control

被引：0

作者：

Andriikiv, O.Ye. ^{[1
]}

Lysak, M.V. ^{[1
]}

Skalsky, V.P. ^{[1
]}

机构：

[1] Fiziko-Mechanicheskij Inst im. G.V., Karpenko, L'vov, Ukraine

来源：

Fiziko-Khimicheskaya Mekhanika Materialov | 1992年 / 28卷 / 04期

关键词：

Intercrystalline cracking;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The complex approach involving acoustic emission and fractography methods for investigation of hydrogen embrittlement of metals and alloys affected by hydrogen of high concentration was elaborated. This approach was applied to U8 steel for which it was shown that crack initiation was caused mainly be gaseous hydrogen influence. The macrocrack propagation started at near surface layers of a speciman where its decarbonization was observed. The pricipal stages of destruction are as follows: 1) ductile deformation and corrosion; 2) intergranular cracking and non-metallic inclusions; 3) merging microcracks into macrocracks and their growing.

引用

页码：63 / 69