A COMBINATION OF THERMAL AND MECHANICAL ACTIONS ON THE FORMATION OF THE WHITE ETCHING LAYER
Publication Name
CM 2022 - 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Conference Proceedings
Abstract
The formation mechanism of the white etching layer (WEL) on the rail steel material has been confirmed via two different routes; thermal-induced WEL by phase transformation and mechanical-induced WEL by severe plastic deformation. In this study, a combination of thermal and mechanical processes was performed to examine the synergistic interaction of two formation mechanisms of the WEL on rails. An experiment was conducted on the rail steel material using a Gleeble thermo-mechanical simulation system. The results confirmed that the martensitic WEL is formed by phase transformation from rapid quenching at a temperature below the critical point of material phase transformation when high hydrostatic pressure is applied.
Open Access Status
This publication is not available as open access
First Page
90
Last Page
96
Funding Number
LE120100104
Funding Sponsor
Australian Research Council