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Proceedings Paper

Influence of repeated quenching on the rolling contact fatigue of bearing steel
Author(s): Edson Costa Santos; Takashi Honda; Katsuyuki Kida
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Paper Abstract

The rolling contact fatigue of JIS SUJ2 (high carbon high strength bearing steel) heat treated by repeated quenching was investigated. The microstructure of the bearing traces was observed before and after heat treatment by laser confocal microscope and scanning electron microscope. X-ray diffraction was used to measure changes in the retained austenite and the residual stresses on the bearing races' surface. The prior austenite-grain size was greatly reduced and the compressive stress at the surface of the material was increased by the heat treatment. Both factors contribute to the higher fatigue strength of the bearings.

Paper Details

Date Published: 15 April 2010
PDF: 7 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752241 (15 April 2010); doi: 10.1117/12.852314
Show Author Affiliations
Edson Costa Santos, Kyushu Univ. (Japan)
Takashi Honda, Kyushu Univ. (Japan)
Katsuyuki Kida, Kyushu Univ. (Japan)


Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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