Competition between Fatigue Crack Growth and Wear under Rolling – Sliding Contact Condition

• Published in: Tetsu-to-Hagane Vol. 105; no. 6; pp. 636 - 647
• Main Authors: Akama, Makoto, Murahashi, Mamoru
• Format: Journal Article
• Language: Japanese
• Published: The Iron and Steel Institute of Japan 2019
• Subjects: crack growth; crack initiation; EPMA; rail; rolling contact fatigue; SEM; short fatigue crack; wear

A numerical model was developed to simulate the competition between crack initiation and growth by rolling contact fatigue (RCF) and wear in a railhead. The simulation model assumes that the materials are polycrystalline ferrite and pearlite and that RCF crack initiation is determined by the total a...