Manufacturing Technology 2016, 16(1):214-220 | DOI: 10.21062/ujep/x.2016/a/1213-2489/MT/16/1/214

Barkhausen Noise Emission in Case - Hardened Bearing Steels

Miroslav Neslušan1, Róbert Farda1, Kamil Kolařík2, Jiří Čapek2
1 ŽU Žilina, Univerzitná 1, 010 26 Žilina, KOVT, SjF
2 ČVUT Praha, Trojanova 13, 120 00, Praha 2, ČR

This paper deals with detection of surface burn after grinding operations on bearing rings made of case - hardened steels. The paper reports about Barkhausen noise technique employed for non destructive monitoring of grinding burn and discusses the main aspects affecting the Barkhausen noise emission such as thickness of heat affected zone, micro hardness, stress state, carbides, dislocation density and volume of retained austenite. Results of experiments indicate that the influence of stress state on Barkhausen noise is only minor whereas influence of structure features dominates. On the other hand, it is difficult to unwrap influence microstructure features contribution to the Barkhausen noise. For this reason their influence should be studied on the model surfaces undergoing the different regime of chemical and heat treatment.

Keywords: grinding burn, Barkhausen noise, bearings

Published: February 1, 2016  Show citation

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Neslušan M, Farda R, Kolařík K, Čapek J. Barkhausen Noise Emission in Case - Hardened Bearing Steels. Manufacturing Technology. 2016;16(1):214-220. doi: 10.21062/ujep/x.2016/a/1213-2489/MT/16/1/214.
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