Fatigue strength of ion-nitrided steel at elevated temperature

被引：0
|
作者：
Onuki, A [1 ]
Numazaki, Y [1 ]
机构：
[1] Yamagata Univ, Dept Mech Syst Engn, Yonezawa, Yamagata 9928510, Japan
来源：
ECF 12: FRACTURE FROM DEFECTS, VOLS. I-III | 1998年
关键词：
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Fatigue strength of ion-nitrided Steel at elevated temperature, 300 and 500 degree centigrade, is determined. High temperature and oxidation are considered as weakening factors. As the strengthening mechanism of fatigue on ion-nitrided steel is not the hardness of the surface layer but the strength and residual stress of inner matrix, fatigue strength at elevated temperature is lowered apparently. To avoid the effect of oxidation, fatigue test was carried out in argon gas. Temperature dependency of fatigue strength and the inner oxidation of inclusion is discussed.
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页码：381 / 386
页数：6
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