Rolling contact fatigue life of case-hardened steel treated by shot peenings with shot diameters of 0.05 mm and 0.30 mm

Lei Wang, Guangliang Liu, Masanori Seki, Masahiro Fujii, Qian Li

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In order to investigate the influence of different shot peenings on the rolling contact fatigue life of case-hardened steel, the thrust type rolling contact fatigue test was performed with a ball-on-disk contact tester. In this study, the case-hardened steel disks were treated by the fine particle peening with a shot diameter of 0.05 mm and the normal shot peening with a shot diameter of 0.30 mm. The surface hardness and the surface compressive residual stress of the test disks were increased by these peenings. On the other hand, the surface roughness of the test disks was increased by the normal shot peening, and was decreased by the fine particle peening. The rolling contact fatigue test showed that the rolling contact fatigue life of the test disks was improved by the fine particle peening, and was not improved by the normal shot peening. The rolling contact fatigue life of the test disks became longer as their surface roughness became smaller. Therefore, it follows from this that the fine particle peening, which can provide the increase in surface hardness and the decrease in surface roughness, is good for the increase in the rolling contact fatigue life of case-hardened steel.

Original languageEnglish
Title of host publicationAdvances in Power Transmission Science and Technology
Pages645-648
Number of pages4
DOIs
Publication statusPublished - 2011
EventInternational Conference on Power Transmission, ICPT 2011 - Xi'an, China
Duration: Oct 25 2011Oct 29 2011

Publication series

NameApplied Mechanics and Materials
Volume86
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

OtherInternational Conference on Power Transmission, ICPT 2011
CountryChina
CityXi'an
Period10/25/1110/29/11

Keywords

  • Fine particle peening
  • Rolling contact fatigue life
  • Shot peening
  • Surface roughness

ASJC Scopus subject areas

  • Engineering(all)

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