金属学报  1983, Vol. 19 Issue (6): 24-116

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高强度钢疲劳裂纹扩展特性与微观形态分析探讨

欧阳辉;王燕生

北京航空材料研究所;北京航空材料研究所

STUDIES OF FATIGUE CRACK PROPAGATION AND MICROFRACTUREGRAPHY IN HIGH STRENGTH STEELS

OUYANG Hui; WANG Yansheng (Institute of Aeronautical Materials Beijing)

欧阳辉;王燕生. 高强度钢疲劳裂纹扩展特性与微观形态分析探讨[J]. 金属学报, 1983, 19(6): 24-116.
, . STUDIES OF FATIGUE CRACK PROPAGATION AND MICROFRACTUREGRAPHY IN HIGH STRENGTH STEELS[J]. Acta Metall Sin, 1983, 19(6): 24-116.

摘要 参考文献 相关文章 Metrics 全文: PDF(2739 KB)   摘要: 本文用宏观和微观方法测量了几种高强度钢的疲劳裂纹扩展速率,用金相和断口复型法观察了疲劳断口的微观形态以及与显微组织的关系。结果表明,宏观与微观测量的结果基本一致;疲劳裂纹扩展速率随平均应力的增加而增加;18CrMn2MoBA钢显微组织中的颗粒相(M+A)可以降低疲劳裂纹扩展速率。 Abstract：The studies were carried out of the test of fatigue crack growth rate and relative to the microscopic morphology of fracture surface in certain high-strength steels. It was found that the results measured by both macro-and microscopic examinations are identical. The fatigue striation of the subcritical crack propagation is quantitatively related to the mean stress. In the same range of stress intensity factors the crack growth rate increases with the mean stress. The fractographic observations of the fatigue crack propagation on specimens of 18CrMn2MoBA steel reveal that the microstructural particle phase constituent with martensite and austenite can be responsible for the reduction of the fatigue crack growth rate. 收稿日期: 1983-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 欧阳辉 王燕生 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I6/24 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed