FATIGUE BEHAVIOR OF CARBURIZED STEEL WITH INTERNAL OXIDES NEAR THE SURFACE

被引：7

作者：

KIKUCHI, M

UEDA, H

NAITO, T

机构：

[1] Komatsu Ltd, Hiratsuka, Jpn, Komatsu Ltd, Hiratsuka, Jpn

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1987年 / 18卷 / 01期

关键词：

IRON AND STEEL METALLOGRAPHY - Microstructures - STEEL HEAT TREATMENT - Carburizing;

D O I：

10.1007/BF02646234

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni-Cr-Mo Steel was chosen for this study to obtain a high hardenability and avoid the development of nonmartensitic microstructure near the surface. The reason for the characteristic fatigue behavior in carburized steel with internal oxides is basically the same as that for carburized steel with surface structure anomalies. The internal oxides near the surface can be the preferential crack initiation zone. It is desirable to avoid the development of such a surface defect during carburizing. Vacuum carburizing is a potential process. Shot peening is another effective surface treatment.

引用

页码：156 / 158

页数：3