碳化物
材料科学
残余应力
猝灭(荧光)
奥氏体
硬化(计算)
冶金
方位(导航)
残余物
微观结构
渗碳
失真(音乐)
复合材料
计算机科学
放大器
图层(电子)
物理
人工智能
荧光
量子力学
光电子学
CMOS芯片
算法
作者
A. Thuvander,Lars Höglund,Arne Melander,Anders From,Stefan Jönsson,John Ågren,Patrik Ölund,J-E Andersson,TB Lund,John M. Beswick,J. Slycke
出处
期刊:ASTM International eBooks
[ASTM International]
日期:2009-03-04
卷期号:: 265-14
被引量:3
摘要
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 behavior 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.
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