Effect of Repeated Quenching on Rolling Contact Fatigue Properties of JIS SUJ2 Bearing Steel

Takayuki Kamiya; Yuuki Hashizume; Koshiro Mizobe; Katsuyuki Kida

doi:10.4028/www.scientific.net/MSF.867.60

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HomeMaterials Science ForumMaterials Science Forum Vol. 867Effect of Repeated Quenching on Rolling Contact...

Effect of Repeated Quenching on Rolling Contact Fatigue Properties of JIS SUJ2 Bearing Steel

Abstract:

One important method to improve the material properties is refinement of the prior austenite grain size. Repeated quenching is used as a grain refinement method. In the present work, samples of SUJ2 steel were furnace quenched once and thrice in order to investigate the effect of repeated quenching on rolling contact fatigue (RCF) strength. After the RCF tests, maicrostructure observations, Vickers hardness and retained austenite measurements, RCF life evaluation using the Weibull distribution were carried out. It was found that the dispersion of the life population was reduced by repeatedly quenching.

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Periodical:

Materials Science Forum (Volume 867)

Pages:

60-65

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.867.60

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Online since:

August 2016

Authors:

Takayuki Kamiya, Yuuki Hashizume, Koshiro Mizobe, Katsuyuki Kida*

Keywords:

Bearing Steel, Flaking Failure, Repeatedly Quenching, Rolling Contact Fatigue, Weibull Distribution

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