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FV520B不锈钢角焊缝接头的组织和断裂机理

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Indexed by:期刊论文

Date of Publication:2013-07-20

Journal:材料工程

Included Journals:EI、PKU、ISTIC、CSCD、Scopus

Issue:7

Page Number:1-5,91

ISSN No.:1001-4381

Key Words:疲劳;角焊缝接头;疲劳断口;马氏体;第二相粒子

Abstract:通过对焊接接头疲劳断口的观察研究,讨论了控制接头疲劳失效的疲劳机理.实验研究了焊接接头的母材、焊缝及热影响区的微观组织形态.结果发现:母材组织为细小均匀的板条马氏体及弥散分布的第二相粒子,而焊缝区为粗大的板条马氏体及少量的第二相颗粒.组织特征的区别证明母材综合力学性能优于焊缝.

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