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

Abstract:

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

• Periodical: Applied Mechanics and Materials (Volume 372)
• Pages: 270-272
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.372.270
• Online since: August 2013
• Authors: Kazuaki Nakane, Katsuyuki Kida, Takashi Honda, Koshiro Mizobe, Edson Costa Santos
• Keywords: Homology, Refinement, Repeated Quenching, SAE 52100

References

[1] Kida, K., Yamazaki, T., Shibata, M., Oguma, N. and Harada, H., Crack initiation from micro surface holes in bearings under rolling contact fatigue, Fatigue & Fracture of Engineering Materials and Structures, Blackwell Publishing, 27, 481-493 (2004).

DOI: 10.1111/j.1460-2695.2004.00771.x

[2] Mazanec, K. and Mazancova, E., Physical metallurgy of thermomechanical treatment of structural steels, Cambridge International Science Publishing, (1997).

[3] Smoljan, B., An analysis of combined cyclic heat treatment performance, Journal of materials processing technology, 155-156, 1704-1707 (2004).

DOI: 10.1016/j.jmatprotec.2004.04.121

[4] Nakazawa, K., Kawabe, Y. and Muneki, S., Grain refinement of high-strength maraging steels through cycle heat treatment, Materials Science and Engineering, 33, 49-56 (1978).

DOI: 10.1016/0025-5416(78)90152-0

[5] Padmanabhan, R. and Wood, W. E., Microstructural analysis of a multistage heat –tretated ultrahigh strength low alloy steel, Materials Science and Engineering, 66, 125-143 (1984).

DOI: 10.1016/0025-5416(84)90175-7

[6] Nishikawa, M. and Hiraoka, K., Effect of austenite grain size on mechanical properties of carburized and repeatedly quenched case hardening steel, Sanyo Technical Report, Vol. 14, No. 1, (2007).

[7] SIMAGIS® 4. 0, Smart Image Technology, http: /smartimtech. com.

[8] ARKOWIZ, M., Introduction to Homotopy Theory (Universitext),. Springer Press (2011).

[9] NAKANE, K., TSUCHIHASHI, Y. and MATSUURA, N., A Simple Mathematical Model Utilizing a Topological Invariant for Automatic Detection of Tumor Areas in Digital Tissue Images, to appear Diagnostic Pathology.

DOI: 10.1186/1746-1596-8-s1-s27

[10] CHomP (Computational Homology Project), http: /chomp. rutgers. edu.

[11] Edson Costa Santos, Takashi Honda and Katsuyuki Kida, , Influence of repeated quenching on the rolling contact fatigue of bearing steel, Proceedings of SPIE-The International Society for Optical (ISSN: 0277-786X), Vol. 7522, SPIE 7522-333, 2010. 04.

DOI: 10.1117/12.852314