Rolling Contact Fatigue Property of Low-Temperature Bainite in Surface Layer of a Low Carbon Steel

Abstract:

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Rolling contact fatigue (RCF) properties of low-temperature bainitic microstructure in the surface layer of a low-carbon steel, obtained by means of carburization and successive lowtemperature austempering were studied. Comparisons were made with those properties of a martensite steel obtained by quenching and tempering. The results showed that the low-temperature bainitic steel exhibits an excellent RCF resistance and reaches a RCF life more than twice that of the martensite steel, presumably as a consequence of the very thin bainite plates (~80 nm in thickness) and the fine-scale dispersion of austenite between the plates. The apparently increased hardness in the surface layer may partly be the cause of the enhanced RCF resistance.

Info:

Periodical:

Materials Science Forum (Volumes 675-677)

Edited by:

Yi Tan and Dongying Ju

Pages:

585-588

DOI:

10.4028/www.scientific.net/MSF.675-677.585

Citation:

P. Zhang et al., "Rolling Contact Fatigue Property of Low-Temperature Bainite in Surface Layer of a Low Carbon Steel", Materials Science Forum, Vols. 675-677, pp. 585-588, 2011

Online since:

February 2011

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$35.00

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