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金属学报  1998 

堆焊结构界面区附近的微观组织结构、氢扩散富集与开裂行为研究

, PP. 633-639

Keywords: 堆焊结构界面,微观组织,氢扩散,氢致开裂

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Abstract:

利用高压釜充氢及微区测氢实验,研究了堆焊结构界面区附近的微观组织结构、氢扩散富集及开裂行为之间的关系.实验结果表明,界面处的氢分布与微观组织结构相对应剥离过程是多点原沿晶开裂的过程,剥离裂纹的形核、扩展与界面区附近的显微组织密切相关.并有四种类型;剥离裂纹不会扩展进入母材.

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