Fatigue crack propagation behavior in dual-phase steel

被引：12
|
作者：
Sarwar, M [1 ]
Priestner, R [1 ]
机构：
[1] Univ Manchester, Inst Sci & Technol, Manchester Mat Sci Ctr, Manchester M60 1QD, Lancs, England
来源：
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 1999年 / 8卷 / 02期
关键词：
crack growth; dual-phase steel; fatigue; martensite;
D O I：
10.1361/105994999770347106
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fatigue crack propagation in dual-phase steel was studied with the objective of developing ferritic-martensitic microstructures via intercritical annealing and thermomechanical processing. It was found that the changes in fatigue crack propagation rates and in the threshold stress intensity range, with, resulting from microstructural variations, were directly related to tensile strength in the same manner that was observed in other types of structural steels. It was also observed that the relationship between tensile strength and fatigue crack propagation in intercritically annealed and thermomechanically processed dual-phase steel was much the same as for conventional steels of similar strength level.
引用
收藏
页码：245 / 251
页数：7
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