摘要
利用动力学软件DICTRA对MG600铸坯凝固过程中的枝晶偏析和等温均匀化退火过程进行模拟,同时将模拟结果与实际退火试验结果进行了对比。结果表明,DICTRA模拟的Si、Mn偏析度结果与试验结果有较好符合,1250℃保温6 h为MG600铸坯的最佳退火工艺。
The as-cast dendritic micro-segregation phenomenon and isothermal homogenization annealing of MG600 ingot were predicted by means of DICTRA（ diffusion-controlled transformations） software. Meanwhile,the simulated results and annealing experiment consequence were compared and analyzed. The results show that the micro-segregation factor of Si and Mn results agree well with annealing experiment.Holding for 6 h at 1250 ℃ is best annealing process.
出处
《金属热处理》
CAS
CSCD
北大核心
2017年第10期179-184,共6页
Heat Treatment of Metals
基金
国家科学自然基金(51374018)
关键词
MG600钢
微观偏析
均匀化
扩散
退火
MG600 steel
micro-segregation
homogenization
diffusion
annealing
