Cellular automaton simulation of the peritectic solidification of a C-Mn steel
A cellular automaton model has been developed to simulate the microstructural evolution of a C-Mn steel during the peritectic solidification. In the model, the thermodynamics and solute diffusion of multicomponent systems were taken into account by using Thermo-Calc and DICTRA software. Scheil model was used to predict the relationship between solid fraction and temperature, which was used to calculate the movement velocity of the US and LIy interface; a mixed-mode model in multi-component system was developed to calculate the movement velocity of the Sly interface. To validate the model, the variation of manganese distribution was studied. The simulated results showed a good agreement with experimental results reported in literatures. Meanwhile, the simulated growth kinetics of peritectic solidification agreed well with the experimental result obtained by using confocal scanning laser microscopy (CSLM). The model can simulate the growth kinetics of peritectic solidification and distributions of concentrations of all components in grains.
cellular automaton peritectic solidification C-Mn steel multi-component numerical simulation
Su Bin Han Zhiqiang Liu Baicheng
Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
国际会议
The 11th Asian Foundry Congress(第11届亚洲铸造会议 AFC-11)
广州
英文
1-7
2011-11-12（万方平台首次上网日期，不代表论文的发表时间）