Influence of Repeated Quenching on Bearing Steel Martensitic Structure Investigated by Homology

2013 ◽  
Vol 372 ◽  
pp. 270-272 ◽  
Author(s):  
Kazuaki Nakane ◽  
Katsuyuki Kida ◽  
Takashi Honda ◽  
Koshiro Mizobe ◽  
Edson Costa Santos
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
High Strength ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Carbon ◽  
Mathematical Methods ◽  
Heat Treated ◽  
Laser Confocal Microscope ◽  
Steel Heat

JIS SUJ2 (high carbon high strength bearing steel) heat treated by repeated quenching was investigated. The microstructure of the bearing traces was observed after heat treatment by laser confocal microscope. In this paper, by mathematical methods, we try to evaluate quantitatively this change of the structure. Homology is a branch of mathematics that allows quantitative describing characteristics of a figure by replacing the figure with algebra. Applying homology we can express the degree of the connection of the figure. Here we use homology to quantify the change of structures by repeated quenching. Keyword: Homology, Rolling contact fatigue, SUJ2, repeated quenching

Microstructure and rolling contact fatigue life of austenitic nitrocarburized STB 2 high carbon chromium bearing steel

2000 ◽  
Vol 6 (5) ◽  
pp. 429-433 ◽  
Author(s):  
Dong-Joo Yoon ◽  
Min-Ho Lee ◽  
Jai-Koan Jin ◽  
Sang-Ho Kang ◽  
Tae-Hyun Nam
Keyword(s):  
Fatigue Life ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Carbon ◽  
Contact Fatigue Life

scholarly journals Carburization induced extra-long rolling contact fatigue life of high carbon bearing steel

2020 ◽  
Vol 131 ◽  
pp. 105351 ◽  
Author(s):  
Zhaoxi Cao ◽  
Tianqi Liu ◽  
Feng Yu ◽  
Wenquan Cao ◽  
Xiaodan Zhang ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Carbon ◽  
Contact Fatigue Life

Crystallographic Analyses on Cracks Initiated by Rolling Contact Fatigue in High Carbon Chromium Bearing Steel

2007 ◽  
pp. 2151-2154
Author(s):  
Kazuhiko Hiraoka ◽  
Takeshi Fujimatsu ◽  
Kazuya Hashimoto ◽  
Shinji Fukumoto ◽  
Atsushi Yamamoto
Keyword(s):  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Carbon

Crystallographic Analyses on Cracks Initiated by Rolling Contact Fatigue in High Carbon Chromium Bearing Steel

2007 ◽  
Vol 561-565 ◽  
pp. 2151-2154 ◽  
Author(s):  
Kazuhiko Hiraoka ◽  
Takeshi Fujimatsu ◽  
Kazuya Hashimoto ◽  
Shinji Fukumoto ◽  
Atsushi Yamamoto
Keyword(s):  
Fatigue Crack ◽  
Crack Formation ◽  
Early Stage ◽  
Fatigue Cracks ◽  
Rolling Contact Fatigue ◽  
Contact Fatigue ◽  
Bearing Steel ◽  
Rolling Contact ◽  
High Carbon ◽  
Element Analysis

Crack formation by a rolling contact fatigue in a high carbon chromium bearing steel has been discussed. Newly developed method for preparing specimens including pre-existing voids enabled one to observe the early stage of fatigue crack formation. Many fatigue cracks were formed around the voids. The positions of crack formation and the direction of the cracks were consistent with those forecasted by finite element analysis. Fatigue crack formation was followed by formation of the WEAs.

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