Rapid Dendrite Growth in Solidification of Highly Undercooled Alloys  

作　　者：AN Hong’en YANG Jine ZHANG Xiaobing YANG Shaopei 安红恩;YANG Jine;ZHANG Xiaobing;YANG Shaopei(College of Mechanical and Electronic Engineering,Huanghe Jiaotong University,Jiaozuo 454950,China;Jiangsu Yingchuang Power Technology Co.,Ltd.,Suzhou 215000,China;Henan Engineering Technology,Research Center on Intelligent Manufacturing Technology and Equipment,Jiaozuo 454950,China)

机构地区：[1]College of Mechanical and Electronic Engineering,Huanghe Jiaotong University,Jiaozuo 454950,China [2]Jiangsu Yingchuang Power Technology Co.,Ltd.,Suzhou 215000,China [3]Henan Engineering Technology,Research Center on Intelligent Manufacturing Technology and Equipment,Jiaozuo 454950,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2021年第2期259-261,共3页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Key R&D and Promotion Projects in Henan Province(No.212102210267)。

摘　　要：Nonequilibrium thermodynamics and transportation kinetics near the propagating solid-liquid interface dominates the rapid solidification process,which is far from a thermodynamically stable state.Rapid solidification process can be described more precisely using quantitative thermodynamic calculation of phase diagram with nonlinear liquidus and solidus and evaluating the nonequilibrium effect in diffusion kinetics.Based on these basic principles,we used a current nonequilibrium dendrite growth model to describe rapid solidification process of deeply undercooled alloys.Evolution of the key fundamental solidification parameters was also evaluated.

关 键 词：solid solutions SOLIDIFICATION growth from melt natural crystal growth 

分 类 号：TG111.4[金属学及工艺—物理冶金]