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Fatigue fracture behavior of bearing steel GCM5 in very high cycle regime

  • J. W. Zhang
  • , K. Shiozawa
  • , L. T. Lu
  • , W. Li
  • , W. H. Zhang
  • Southwest Jiaotong University
  • University of Toyama
  • Beijing Jiaotong University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In order to investigate the fatigue behaviors in very high cycle fatigue regime of bearing steel GCr15 (Chinese standard), cantilever-type rotary bending fatigue test was carried out, by using an hourglass-shaped specimen. As a result, the S-N data were classified into surface grinding flaw or inclusion induced fracture mode, subsurface inclusion without 'granular-bright-facet' (GBF) area induced fracture mode and subsurface inclusion with GBF area induced fracture mode. Formation of a GBF area was clearly observed in the vicinity of subsurface inclusion on the fracture surface ruptured at high- cycle fatigue regime. The cause of the S-N curves of GCr15 obtained by this experiment continuously decreased, which is different from the common 'duplex S-N' curve. Experiments on fracture surface was carried out based on the 'dispersive decohesion of spherical carbide' model aimed to clarify the mechanism of the formation of GBF area.

源语言英语
主期刊名Materials and Product Technologies - 2008 International Conference on Advances in Product Development and Reliability, PDR2008
出版商Trans Tech Publications
119-126
页数8
ISBN(印刷版)087849376X, 9780878493760
出版状态已出版 - 2008
已对外发布
活动National Natural Science Foundation of China (NSFC) - Chengdu, 中国
期限: 4 8月 20086 8月 2008

出版系列

姓名Advanced Materials Research
44-46
ISSN(印刷版)1022-6680

会议

会议National Natural Science Foundation of China (NSFC)
国家/地区中国
Chengdu
时期4/08/086/08/08

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