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FV520B不锈钢角焊缝接头的组织和断裂机理

Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2013-07-20

Journal: 材料工程

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

Issue: 7

Page Number: 1-5,91

ISSN: 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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