Research progress in CALPHAD assisted metal additive manufacturing  

作　　者：Ya-qing Hou Xiao-qun Li Wei-dong Cai Qing Chen Wei-ce Gao Du-peng He Xue-hui Chen Hang Su 

机构地区：[1]China Iron&Steel Research Institute Group,Beijing 100081,China [2]Thermo-Calc Software AB,Solna,SE-169,Sweden [3]KTH Royal Institute of Technology,Stockholm,SE-100,Sweden [4]Central Iron and Steel Research Institute,Beijing 100081,China

出　　处：《China Foundry》2024年第4期295-310,共16页中国铸造（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2021YFB3702500)。

摘　　要：Metal additive manufacturing(MAM)technology has experienced rapid development in recent years.As both equipment and materials progress towards increased maturity and commercialization,material metallurgy technology based on high energy sources has become a key factor influencing the future development of MAM.The calculation of phase diagrams(CALPHAD)is an essential method and tool for constructing multi-component phase diagrams by employing experimental phase diagrams and Gibbs free energy models of simple systems.By combining with the element mobility data and non-equilibrium phase transition model,it has been widely used in the analysis of traditional metal materials.The development of CALPHAD application technology for MAM is focused on the compositional design of printable materials,the reduction of metallurgical imperfections,and the control of microstructural attributes.This endeavor carries considerable theoretical and practical significance.This paper summarizes the important achievements of CALPHAD in additive manufacturing(AM)technology in recent years,including material design,process parameter optimization,microstructure evolution simulation,and properties prediction.Finally,the limitations of applying CALPHAD technology to MAM technology are discussed,along with prospective research directions.

关 键 词：metal additive manufacturing CALPHAD integrated computational material engineering powder bed fusion material design microstructure simulation 

分 类 号：TG21[金属学及工艺—铸造]