SYMPOSIA PAPER Published: 01 January 1998
STP12133S

Simulation of Heat Treatment Response and Distortion of Bearing Steels

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The present paper is a review of recent results on simulation of heat treatment response of bearing steels. Two aspects are considered namely firstly the evolution of the microstructure during heat treatment, especially the carbide structure and the corresponding distribution of alloying elements in the austenite around the carbides. This information is important in order to understand the hardening response of the steel. The analysis is based on thermodynamics and kinetics of multi component systems. Both single carbide sizes and realistic size distributions are considered. Secondly the evolution of the residual stresses and the distortion is considered during the full heat treatment cycle including heating and cooling. These latter simulations focus on the behaviour of full components. Special interest is devoted to origins of out of roundness of bearing rings. Factors like original geometrical imperfections, residual stresses from mechanical manufacturing steps, segregation and uneven cooling action during quenching are considered.

Author Information

Thuvander, A
Swedish Institute for Metals Research, Stockholm, Sweden
Höglund, L
Royal Institute of Technology, Stockholm, Sweden
Melander, A
Swedish Institute for Metals Research, Stockholm, Sweden
From, A
Swedish Institute for Metals Research, Stockholm, Sweden
Jonsson, S
Swedish Institute for Metals Research, Stockholm, Sweden
Ågren, J
Royal Institute of Technology, Stockholm, Sweden
Ölund, P
Ovako Steel AB, Hofors, Sweden
Andersson, J-E
Ovako Steel AB, Hofors, Sweden
Lund, T
Ovako Steel AB, Hofors, Sweden
Beswick, J
SKF Engineering and Research Centre, DT Nieuwegein, The Netherlands
Slycke, J
SKF Engineering and Research Centre, DT Nieuwegein, The Netherlands
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Developed by Committee: A01
Pages: 265–278
DOI: 10.1520/STP12133S
ISBN-EB: 978-0-8031-5381-3
ISBN-13: 978-0-8031-2421-9