Contact Fatigue Life Investigation and Wear Mechanisms of Different Case Hardened and Nitrided Steels
Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research
Authors
Organisational units
External Organisational units
- AC2T Research GmbH
- MAGNA Powertrain, Innovative Manufacturing Technology,
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.
Details
Original language | English |
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Title of host publication | Key engineering materials |
Pages | 51-54 |
Number of pages | 4 |
Volume | 2014 |
Edition | 604 |
DOIs | |
Publication status | Published - 2015 |
Publication series
Name | Key engineering materials |
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Publisher | Trans Tech Publications |
ISSN (Print) | 0252-1059 |