合金凝固微观偏析模型化研究进展  

Research Progress in Microsegregation Modelling of Alloy Solidification

作　　者：赵光伟[1] 石增敏[1] 叶喜葱[1] 刘文俊[1] 

机构地区：[1]三峡大学机械与材料学院,宜昌443002

出　　处：《材料导报》2014年第3期118-123,共6页Materials Reports

基　　金：国家自然科学基金(51201093);三峡大学科学基金(KJ2011B032)

摘　　要：全面综述了合金凝固微观偏析模型化方面的研究,介绍了该领域内的代表性工作以及最新的研究进展,包括典型的二元合金微观偏析模型、多元合金偏析模型以及微观偏析模型化与相图计算耦合方面的工作。重点关注了枝晶形貌、固相反扩散、热力学数据获取效率等因素对微观偏析模拟的影响,并指出了该领域需要进一步研究的问题。The research on microsegregation modelling of the alloy solidification is comprehensively reviewed. The representative work and the latest research progress in this field are introduced, including the typical mierosegregation model for binary alloy, the model for multicomponent alloy and the microsegregation modelling coupled with phase diagram calculation. The effects of the dendritic morphology, solid back diffusion and the thermodynamic data acquisition efficiency on microsegregation simulation are discussed. And the further research needed in this area of the issues is prospected.

关 键 词：凝固 微观偏析 模型化 多元合金 相图计算 

分 类 号：TG245[金属学及工艺—铸造]