A Test for Rapid Tribological Characterization of Bearing Steels
Abstract
In this paper is a study the influence of the material and heat treatment on the changes of the fine structure parameters of the superficial layer of triboelements during the first cycles of rolling contact process. The tests were conducted by using a four-roller testing machine. The specimens (rollers) were made of case-hardening, through hardening and high frequency hardening steels. In order to induce different stress distributions in the superficial layer of the specimen specific treatments were applied. Using X-ray diffractometry can be appreciated that the durability of rolling tribosystems can be determined by an optimal relationship between studied parameters. The observed correlation can be used as a fast method to estimate the fatigue life of rolling bearing materials.
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References
[2]. L Pilloni, F Attura, A Calza-Bini, G De Santis, G Filacchioni, A Carosi, S Amato, - Physical metallurgy of BATMAN II Ti-bearing martensitic steels, Journal of Nuclear Materials, 258–263 (1998) 1329-1335.
[3]. I. Crudu, et. al. - Wear testing machine. Patent of invention no. 83160/1982.
[4]. T. Shintani, Y. Murata - Evaluation of the dislocation density and dislocation character in cold rolled Type 304 steel determined by profile analysis of X-ray diffraction, Acta Materialia 59, 4314-4322, (2011).
[5]. N.E. Dowling - Mechanical Behavior of Materials: Engineering Methods for Deformation, Fracture, and Fatigue, 2nd edition, Pretince Hall, (1998).
[6]. Y. Ohue, K. Matsumoto - Sliding–rolling contact fatigue and wear of maraging steel roller with ion-nitriding and fine particle shot-peening, Wear 263 (2007) 782-789.
