Contact Fatigue Life Investigations and Wear Mechanisms of Different Case Hardened and Nidrided Steels

Andreas Trausmuth; Istvan Godor; Alexander Dietrich

doi:10.4028/www.scientific.net/KEM.604.51

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 604Contact Fatigue Life Investigations and Wear...

Contact Fatigue Life Investigations and Wear Mechanisms of Different Case Hardened and Nidrided Steels

Abstract:

The present work examines experimentally the local damage evolution and compares the differences in fatigue behaviour of case-hardened and plasma nitrided layers under rolling contact fatigue (RCF). The RCF experiments are accompanied by damage assessments. In order to assess experimentally the extreme conditions of point contact, the experiments are performed on a ball-on-rod (BoR) test rig. Results showed that nitrided surface get more important to RCF at lower contact pressure due to the comparable thin nitration depth, whereas at high contact stress the crack initiation starts on the surface of the compound layer and crack grow further in the diffusion layer. The carburised layer of case-hardened surfaces do not show any surface crack initiation.

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Periodical:

Key Engineering Materials (Volume 604)

Pages:

51-54

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.604.51

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Online since:

March 2014

Authors:

Andreas Trausmuth*, Istvan Godor, Alexander Dietrich

Keywords:

Damage Mechanisms, Load-Carrying Capacity, Rolling Contact Fatigue (RCF)

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References

[1] Trausmuth, A., Lengauer, M., Gódor, I., Stoschka, M., Dietrich, A., Eichlseder, W.; Load-Carrying Capacity of Different Plasma Nitrided and Case Hardened Specimens under Rolling Contact Loading, 3rd European Conference on Heat Treatment, 23. - 25. March 2011, Wels.

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[2] Trausmuth, A., Gódor, I., Stoschka, M., Dietrich, A., Eichlseder, W.; Load-carrying Capacity Prediction of Different Plasma Nitrided, Case hardened and Quenched Specimens under Rolling Contact Loading, European Conference on Tribology, Wien 2011, S. 441-447, ISBN 978-3-901657-38-2.

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DOI: 10.1016/0043-1648(94)90288-7

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