MICROSTRUCTURAL EFFECTS ON FATIGUE CRACK GROWTH IN A LOW-CARBON STEEL

被引：128

作者：

SUZUKI, H ^{[1
]}

MCEVILY, AJ ^{[1
]}

机构：

[1] UNIV CONNECTICUT,INST MAT SCI,STORRS,CT 06268

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1979年 / 10卷 / 04期

关键词：

D O I：

10.1007/BF02697075

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study of the influence of microstructure on fatigue crack growth in an AISI 1018 steel has been carried out. Two distinctly different duplex microstructures were investigated. In one microstructure ferrite encapsulated islands of martensite; in the other martensite encapsulated islands of ferrite. The latter structure resulted in a significant increase in threshold level (18 MPa√m vs 8 MPa√m) together with an increase in yield strength. Fractographic analysis was used to investigate the influence of microstructure on the mode of fatigue crack growth. © 1979 American Society For Metals And The Metallurgical Society of AIME.

引用

页码：475 / 481

页数：7

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