An Effect of Laser Hardening on Contact and Bending Fatigue of a 42CrMo4 Steel

Ivo Černý; Ivan Fürbacher; Dagmar Mikulová; Jiří Sís

doi:10.4028/www.scientific.net/KEM.665.221

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 665An Effect of Laser Hardening on Contact and...

An Effect of Laser Hardening on Contact and Bending Fatigue of a 42CrMo4 Steel

Abstract:

The paper deals with an investigation of surface laser hardening characteristics on contact and bending fatigue resistance of a 42CrMo4 steel, being often used for manufacture of gear wheels. The aim of the experimental programme was to simulate the complex service loading of fairly large gears by two separate investigations, namely contact fatigue performed on a special, so called analogon machine and bending fatigue performed on high cycle fatigue resonance machines using three-point-bend (3PB) fairly large specimens. It was shown that after optimising the methodology and parameters of the laser hardening technology, contact fatigue resistance is very good, comparable with very expensive and time consuming thermochemical high-depth surface treatments. Bending endurance limit can be increased. The role of residual stresses resulting from the laser treatment was shown as decisive.

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Periodical:

Key Engineering Materials (Volume 665)

Pages:

221-224

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.665.221

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Online since:

September 2015

Authors:

Ivo Černý, Ivan Fürbacher, Dagmar Mikulová, Jiří Sís

Keywords:

42CrMo4 Steel, Bending Fatigue, Contact Fatigue, Laser Hardening

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References

[1] D. Kocanacuteda, S. Kocanacuteda, H. Tomaszek, Probabilistic Description of Fatigue Crack Growth in a Laser-Hardened Medium-Carbon Steel, Mater. Sci. 37 (2001) 374-382.

Google Scholar

[2] I. Černý, I. Fürbacher, V. Linhart, Influence of Laser Hardening and Resulting Microstructure on Fatigue Properties of Carbon Steels, J. Mater. Eng. Perform. 7 (1998) 361-366.

DOI: 10.1361/105994998770347800

Google Scholar

[3] I. Černý, J. Sís, Fatigue strength of laser hardened 42CrMo4 steel considering effects of compressive residual stresses on short crack growth, Procedia Engineering 74 (2014) 417-420.

DOI: 10.1016/j.proeng.2014.06.292

Google Scholar

[4] Z. Klepš, J. Nožička, J. Kochman, M. Hrdlička, J. Tojan, Technical tables, SNTL, Praha, (1977).

Google Scholar

[5] I. Fürbacher, I. Černý, V Linhart, An influence of microstructure factors of nitrided layers on the contact fatigue strength of gears, in: M.H. Aliabadi, C.A. Brebbia (Eds. ), Proc. of the 3rd Int. Conf. Surface Treatment 97, Oxford, 15-17 July 1997, Wessex Inst Technol, UK, pp.159-168.

Google Scholar

[6] I. Černý, S. Němeček, N. Ganev, J. Sís, K. Kolařík, Final report on the project FR-TI3/814 Optimisation of laser surface treatment of machinery components to increase their utility properties, SVÚM a. s., Čelákovice, Czech Republic (2015) 63 p.

Google Scholar