LOCAL YIELDING ATTENDING FATIGUE CRACK GROWTH

被引：150

作者：

HAHN, GT

ROSENFIE.AR

HOAGLAND, RG

机构：

[1] Deformation and Fracture Research Division, Metal Science Group Battelle-Columbus Laboratories, Columbus,OH, United States

来源：

METALLURGICAL TRANSACTIONS | 1972年 / 3卷 / 05期

关键词：

D O I：

10.1007/BF02642452

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Fatigue crack growth rate measurements were performed at 100**degreeC on an Fe-3Si steel. Testing conditions are described in detail. On the basis of the results obtained, three regions with distinct cyclic strain histories that precede the crack are identified: a microstrain region, a cyclic plastic zone, and a zone affected by crack opening displacement. It is suggested that the damage associated with the instabilities in the fatigue substructure due to overstrain contributes to the crack growth mechanism.

引用

页码：1189 / &

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