Effects of Thermo-Magnetic Treatment on Microstructure and Mechanical Properties of Rolling-Bearing Steel

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Abstract The influence of thermo-magnetic treatment of rolling-bearing steel on some its metallurgical and mechanical properties was investigated. The heating and/or cooling processes of the sample occurred in a magnetic field having certain intensities. The XRD patterns of rolling-bearing steel sample exhibited a beneficial effect of the magnetic field on the structure, phase transformation and tension state. It was found an increased reliability of rolling tribomodel made from thermo-magnetic treated steel when it was subjected to the fatigue tests.

Key words�� steel thermo-magnetic treatment structure phase transformation tribomodel reliability

Received: 29 September 2009

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http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/ OR http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/Y2010/V17/I9/46

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