Paper Title:
Experimental Study of the Effects of Surface Defects on Rolling Contact Fatigue Behavior
  Abstract

Rolling contact fatigue (RCF) cracks initiated from surface and subsurface defects are typical failure modes of bearing systems. In this paper, the effects of surface defects on RCF behavior of M50NiL and M50 steels were studied experimentally. Artificial dents were introduced on the rolling surface by using Rockwell hardness tester. The influences of dent shape and dent shoulders were examined by thrust-type RCF tests. Surface cracks initiation, propagation and spalling were monitored by scanning electron microscope (SEM) observation. The results showed that artificial dents reduce RCF lives of M50NiL and M50 steels with mineral oil lubrication. The fatigue failure initiates at the surface defect with the effects of dent shape and dent shoulder. M50NiL steel has higher contact fatigue resistance than M50. The features of surface and sub-surface cracks propagation during RCF tests were also observed.

  Info
Periodical
Key Engineering Materials (Volumes 353-358)
Edited by
Yu Zhou, Shan-Tung Tu and Xishan Xie
Pages
254-257
DOI
10.4028/www.scientific.net/KEM.353-358.254
Citation
G. Chen, H. P. Zhao, S. H. Ji, X. Q. Feng, H. J. Shi, "Experimental Study of the Effects of Surface Defects on Rolling Contact Fatigue Behavior", Key Engineering Materials, Vols. 353-358, pp. 254-257, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Fan Fei Zeng, Li Sha Niu, Hui Ji Shi
Abstract:This work has investigated the effect of spherical dent on rolling contact fatigue (RCF). A 3-D finite element simulation model of bearing...
1094
Authors: Akira Todoroki, Roysuke Matsuzaki, Yusuke Samejima, Yoshiyasu Hirano
Abstract:Authors’ group has been done researches on the damage monitoring of the laminated Carbon Fiber Reinforced Plastic (CFRP) using the electrical...
963
Authors: Wu Ying, Peng Zhang, Wu Liu
Abstract:Dent is one of the important factors affecting pipeline fatigue life, and it will greatly reduce the fatigue life of the pipeline in service....
1327
Authors: H. Hidaka, Kouji Ueda, N. Mitamura
Chapter 15: Neutron Scattering & X-Ray Studies of Advanced Materials
Abstract:In the rolling bearing, the flaking caused by rolling contact fatigue is classified into two types: surface originated flaking and subsurface...
1679