INFLUENCE OF SURFACE HARDENING ON CONTACT FATIGUE LIFE OF NODULAR CAST IRON

被引：0
|
作者：
TAO Zengyi LUO Jiaming Huazhong University of Science and Technology
机构：
来源：
Acta Metallurgica Sinica(English Letters) | 1990年 / 03期
关键词：
surface hardening; contact fatigue life; laser melting; induction hardening;
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学科分类号：
摘要：
The influence of laser surface melting and induction hardening on the surface structure,con-tact fatigue life and failure behaviour of the nodular cast iron has been investigated.The con-tact fatigue life can be improved by both laser treatment and induction hardening,but the fail-ure process and type are different from each other.The former is due to lumpy and deep spal-ling caused by crack propagation between the quenching zone and the substrate,and the latteris due to nubby and surface flaking caused by the oil wedged action into surface cracks.
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页码：188 / 193
页数：6
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