摘要
考察了高压气相热充氢对１８Ｃｒ－８Ｎｉ型奥氏体焊缝金属的力学性能与微观组织的影响。定量测试结果表明，充氢后焊缝金属的塑性明显降低，而强度变化不大；氢抑制了α＇马氏体的生成，由此否定了氢致α＇马氏体转变导致氢脆的观点。
Effect of high pressure, high temperature gas charging of hydrogen on the mechanical properties and microstructures of 18Cr-8Ni austenitic weld metal was investigated. It was shown that after hydrogen charging,the ductility of the weld metal decreased obvionsly while its strength remained unchanged;Moreover,the existing of hydrogen suppressed the γ→α’-martensite transformation,which differs from the viewpoint that austenitic stainless steel suffers from hydrogen embrittlement because of the hydrogen induced γ→α’-martensite transformation.
出处
《材料科学与工艺》
CAS
CSCD
北大核心
1994年第3期89-92,共4页
Materials Science and Technology
关键词
奥氏体钢
焊缝金属
氢
力学性能
Cr-8Ni austenitic alloy
weld metal
hydrogen embrittlement
