TY - JOUR

T1 - Novel S-N curve for different hardened layers in point and line contact

AU - Trausmuth, A.

AU - Grün, F.

N1 - Publisher Copyright: © 2021 Elsevier Ltd

PY - 2021/12

Y1 - 2021/12

N2 - 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.

AB - 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.

KW - Contact stress

KW - RCF

KW - S-N curve

KW - Slide to roll ratio, point contact, line contact

UR - http://www.scopus.com/inward/record.url?scp=85112754723&partnerID=8YFLogxK

U2 - 10.1016/j.ijfatigue.2021.106439

DO - 10.1016/j.ijfatigue.2021.106439

M3 - Article

AN - SCOPUS:85112754723

VL - 153.2021

JO - International Journal of Fatigue

JF - International Journal of Fatigue

SN - 0142-1123

IS - December

M1 - 106439

ER -