Novel S-N curve for different hardened layers in point and line contact
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- AC2T Research GmbH
Abstract
Rolling contact fatigue (RCF) regularly causes mechanical components to fail under cyclic loads. Popular surface treatment processes such as case hardening (carburization), nitriding and tempered martensitic reduce the effect of RCF damage. This paper presents multi-stage S-N curve for steels with different surface treatments, under point and line contact conditions using RCF tribometers for the experiments and finite element (FEM) simulation to simulate localised stresses in the contacts. Additionally, S-N tests with 0, 5 and 11% slide to roll ratio (SRR) are presented. This work demonstrates the importance of testing key points at RCF S-N curves to optimize the hardened layers.
Details
Original language | English |
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Article number | 106439 |
Number of pages | 16 |
Journal | International Journal of Fatigue |
Volume | 153.2021 |
Issue number | December |
Early online date | 21 Aug 2021 |
DOIs | |
Publication status | Published - Dec 2021 |