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Lookup NU author(s): Dr Francis Franklin,
Dr David Fletcher,
Professor Ajay Kapoor
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The quality of rail steel has improved greatly in recent years and the material is more resistant to wear, plastic deformation and crack initiation; but track forces have also increased, and cracking of rails is a major concern. Different steel microstructures have different wear and rolling contact fatigue (RCF) behaviours when subject to cyclic, rolling-sliding, compressive contact. In order to capture the differences, it is necessary to model these at a microstructural level. This paper describes the development of microstructural models for incorporation into a wear and crack initiation model. A new mechanism is introduced which distinguishes RCF lives of pearlitic microstructures with different percentage volumes of pro-eutectoid ferrite. © 2008 F.J. Franklin.
Author(s): Franklin FJ, Garnham JE, Fletcher DI, Davis CL, Kapoor A
Publication type: Article
Publication status: Published
ISSN (print): 0043-1648
ISSN (electronic): 1873-2577
Publisher: Elsevier BV
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