Affiliation:
1. Präzisionskugeln Eltmann GmbH , Industriestr. 2, 97483 Eltmann Germany
Abstract
Abstract
It is demonstrated that high speed steels are suitable for manufacturing of heat resistant rolling element bearings especially for applications in aero engines. A detailed analysis of heat treating processes and metallurgical evaluation shows how the properties of these steels grades can be adjusted to meet the specific requirements for engine bearings. Based on results from rig testing it is shown how variations in heat treating parameters can influence the rolling contact fatigue performance. The role of carbides, a typical constituent of high speed steels, on bearing applications is discussed in detail. The high level of heat resistance of high speed steels allows a nitriding in addition to the conventional heat treatment. By nitriding an increase in hardness close to the surface can be achieved which can make bearings more robust against indentation of hard particles. ◼
Subject
Materials Chemistry,Metals and Alloys,Industrial and Manufacturing Engineering
Reference18 articles.
1. Böhmer, H.-J.; Hirsch, T.: Rolling Contact Fatigue Behaviour of Heat Resistant Bearing Steels at High Operational Temperatures. Mat. Sc. & Engineering Tech. 30 (1999) 9, pp. 533–541, DOI:10.1002/(SICI)1521-4052(199909)30:9 %3C533::AIDMAWE533%3E3.0.CO;2-X
2. Beer, O.: Erfahrungen bei der Wärmebehandlung von warmfesten Einsatzstählen für Lagerkomponenten in Treibwerken. HTM J. Heat Treatm. Mat. 73 (2018) 1, pp. 27–40, DOI:10.3139/105.110348
3. Böhmer, H. J.; Ebert, F. J.; Trojahn, W.: M50NiL Bearing Material – Heat Treatment, Material Properties and Performance Comparison with M50 and RBD. Lubrication Engineering. 29.04–02.05.91, Montreal, Canada, 1992, on CD
4. Zaretsky, E. V.: Rolling Bearing Steels – A Technical and Historical Perspective. Mat. Sc. Technol. 28 (2012) 1, pp. 58–69
5. Berns, H., Theisen, W.: Eisenwerkstoffe – Stahl und Gusseisen. 3. Aufl., Springer, Berlin, 2006. – ISBN 978-3-540-29793-2
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献