Rolling Contact Fatigue Properties of SAE 8620 Steel after Case Carburizing

2016 ◽  
Vol 23 (7) ◽  
pp. 711-716 ◽  
Author(s):  
Yan-guang Cao ◽  
Le Xu ◽  
Gou-qiang Zhang ◽  
Jie Shi ◽  
Mao-qiu Wang
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Fatigue Properties ◽  
Sae 8620 Steel

Rolling contact fatigue properties of Tuffritrided 0.2% C steel

Wear ◽  
1982 ◽  
Vol 77 (2) ◽  
pp. 237-245
Author(s):  
C.S. Nanjundaram ◽  
A.Ramamohana Rao
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Fatigue Properties

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

2016 ◽  
Vol 867 ◽  
pp. 60-65 ◽  
Author(s):  
Takayuki Kamiya ◽  
Yuuki Hashizume ◽  
Koshiro Mizobe ◽  
Katsuyuki Kida
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Bearing Steel ◽  
Rolling Contact ◽  
Fatigue Properties ◽  
Austenite Grain Size ◽  
Life Evaluation ◽  
Refinement Method ◽  
Prior Austenite Grain Size ◽  
Work Samples

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.

Experimental Study of Rolling Contact Fatigue Life of Zirconia Ceramic Ball

2010 ◽  
Vol 152-153 ◽  
pp. 1272-1275
Author(s):  
Jing Ling Zhou ◽  
Wei Ming Zuo ◽  
Xiao Yang Chen ◽  
Guo Qing Wu
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Rolling Contact ◽  
Fatigue Properties ◽  
Zirconia Ceramic ◽  
Contact Points ◽  
Pure Rolling ◽  
Contact Fatigue Life ◽  
Life Tests ◽  
Weibull Theory

A newly developed pure rolling fatigue test rig with three contact points for bearing balls was used to perform rolling contact fatigue (RCF) tests and the fatigue properties of two kinds of zirconia ceramic balls produced with different materials composition and identical technologies were compared. Ball surfaces were examined after failure with optical microscopy and scanning electron microscopy. It was identified by tests that the failure mode of zirconia ceramic balls was surface spall. Life tests data, summarized in accordance with the Weibull theory, showed that the life of two kinds of zirconia balls was close, and no remarkable difference in the divergence between the tested two kinds of balls was found

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