Temperature-dependent evolution of the cyclic yield stress of railway wheel steels
Journal article, 2016

The evolution of the cyclic yield stress for a railway wheel steel (UIC ER7T) during cyclic plastic straining has been characterized at different temperatures from -60 to 600 °C. Different constant strain amplitude levels were examined and for temperatures above 200 °C, hold periods were included to study stress relaxation during constant compressive strain. The results are of use in predicting material deformation and damage. This is demonstrated by the application to improve a criterion for surface initiated rolling contact fatigue damage.

Thermal effects

Low cycle fatigue

Rolling contact fatigue

Stress–strain loop

Ratcheting

Author

Johan Ahlström

Chalmers, Materials and Manufacturing Technology, Materials Technology

Elena Kabo

Chalmers, Applied Mechanics, Material and Computational Mechanics

Anders Ekberg

Dynamics

Wear

0043-1648 (ISSN)

Vol. 366 SI 378-382

Areas of Advance

Transport

Materials Science

Roots

Basic sciences

Subject Categories

Other Materials Engineering

Vehicle Engineering

DOI

10.1016/j.wear.2016.04.002

More information

Created

10/7/2017