机构地区:[1]State Key Laboratory of Solidification Processing, Northwestern Polytechnical University
出 处:《Journal of Materials Science & Technology》2016年第2期97-120,共24页材料科学技术(英文版)
基 金:financial support of the National Basic Research Program of China (No. 2011CB610403);the National Natural Science Foundation of China (Nos. 51134011 and 51431008);the Fundamental Research Fund of Northwestern Polytechnical University (No. JC20120223);the China National Funds for Distinguished Young Scientists (No. 51125002)
摘 要:Solid-state phase transformation plays an important role in adjusting the microstructure and thus tuning the properties of materials. A general modular, analytical model has been widely applied to describe the kinetics of solid-state phase transformation involving nucleation, growth and impingement; the basic conception for iso-kinetics which constitutes a physical foundation for the kinetic models or recipes can be extended by the analytical model. Applying the model, the evolution of kinetic parameters is an effective tool for describing the crystallization of enormous amorphous alloys. In order to further improve the effectiveness of this kinetic model, recently, the recipes and the model fitting procedures were extended, with more factors (e.g., anisotropic growth, soft impingement, and thermodynamic driving force) taken into consideration in the modified models. The recent development in the field of analytical model suggests that it is a general, flexible and open kinetic model for describing the solid-state phase transformation kinetics.Solid-state phase transformation plays an important role in adjusting the microstructure and thus tuning the properties of materials. A general modular, analytical model has been widely applied to describe the kinetics of solid-state phase transformation involving nucleation, growth and impingement; the basic conception for iso-kinetics which constitutes a physical foundation for the kinetic models or recipes can be extended by the analytical model. Applying the model, the evolution of kinetic parameters is an effective tool for describing the crystallization of enormous amorphous alloys. In order to further improve the effectiveness of this kinetic model, recently, the recipes and the model fitting procedures were extended, with more factors (e.g., anisotropic growth, soft impingement, and thermodynamic driving force) taken into consideration in the modified models. The recent development in the field of analytical model suggests that it is a general, flexible and open kinetic model for describing the solid-state phase transformation kinetics.
关 键 词:Phase transformation Nucleation Growth Kinetics Analytical model
分 类 号:TG111.5[金属学及工艺—物理冶金] TP751.1[金属学及工艺—金属学]
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