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Applied Mathematics and Mechanics (English Edition) ›› 1998, Vol. 19 ›› Issue (1): 15-20.

• 论文 • 上一篇    下一篇

FINITE ELEMENT ANALYSIS OF TEMPERATURE FIELD WITH PHASE TRANSFORMATION AND NON-LINEAR SURFACE HEAT-TRANSFER COEFFICIENT DURING QUENCHING

程赫明, 张曙红, 王洪纲, 李剑云   

  1. Kunming University of Science and Technology. Kunming 650093, P. R. China
  • 收稿日期:1996-11-04 出版日期:1998-01-18 发布日期:1998-01-18

FINITE ELEMENT ANALYSIS OF TEMPERATURE FIELD WITH PHASE TRANSFORMATION AND NON-LINEAR SURFACE HEAT-TRANSFER COEFFICIENT DURING QUENCHING

Cheng Heming, Zhang Shuhong, Wang Honggang, Li Jianyun   

  1. Kunming University of Science and Technology. Kunming 650093, P. R. China
  • Received:1996-11-04 Online:1998-01-18 Published:1998-01-18

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摘要： The calculation of temperature field has a great influence upon the analysis of thethermal stresses and strains during quenching, and also upon the residual stresses andmicrostructure of the workpiece after quenching, too. In this paper. a 42CrMo steelcylinder was taken as an investigating example. From the TTT diagram of the 42CrMo steel, the CCT diagram was simulated by mathematical transformation, and thevolume fraction of phase constituents was calculated. The thermal physical propertieswere treated as the functions of temperature and the volume fraction of phaseconstitutents. Finally, the temperature field with phase transformation and non-linearsurface heat-transfer coefficients was calculated with finite element method. and thecorresponding functional of temperature was established.

关键词: finite element method, quenching, heat conduction, phase transformation

Abstract: The calculation of temperature field has a great influence upon the analysis of thethermal stresses and strains during quenching, and also upon the residual stresses andmicrostructure of the workpiece after quenching, too. In this paper. a 42CrMo steelcylinder was taken as an investigating example. From the TTT diagram of the 42CrMo steel, the CCT diagram was simulated by mathematical transformation, and thevolume fraction of phase constituents was calculated. The thermal physical propertieswere treated as the functions of temperature and the volume fraction of phaseconstitutents. Finally, the temperature field with phase transformation and non-linearsurface heat-transfer coefficients was calculated with finite element method. and thecorresponding functional of temperature was established.

Key words: finite element method, quenching, heat conduction, phase transformation

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