Contact Fatigue Life Investigation and Wear Mechanisms of Different Case Hardened and Nitrided Steels
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Key engineering materials. Vol. 2014 604. ed. 2015. p. 51-54 (Key engineering materials).
Research output: Chapter in Book/Report/Conference proceeding › Chapter › Research
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TY - CHAP
T1 - Contact Fatigue Life Investigation and Wear Mechanisms of Different Case Hardened and Nitrided Steels
AU - Trausmuth, Andreas
AU - Gódor, Istvan
AU - Dietrich, Alexander
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
KW - Rolling contact fatigue
KW - load-carrying capacity
KW - damage mechanisms
U2 - 10.4028/www.scientific.net/KEM.604.51
DO - 10.4028/www.scientific.net/KEM.604.51
M3 - Chapter
VL - 2014
T3 - Key engineering materials
SP - 51
EP - 54
BT - Key engineering materials
ER -
