Melt viscosity of light alloys:Progress and challenges  

作　　者：Yu Fu Hongxia Li Kai Tang Shenglan Yang Yue Shi Bin Liu Qun Luo Lijun Zhang Qian Li Fusheng Pan 

机构地区：[1]State Key Laboratory of Advanced Special Steel&School of Materials Science and Engineering&Shanghai Key Laboratory of Advanced Ferrometallurgy,Shanghai University,Shanghai 200444,China [2]SINTEF Industry,N-7465,Trondheim,Norway [3]National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400044,China [4]State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China [5]College of Materials Science and Engineering,Chongqing University,Chongqing 400044,China [6]National Key Laboratory of Advanced Casting Technologies,Chongqing University,Chongqing 400044,China

出　　处：《Journal of Materials Science & Technology》2024年第16期72-88,共17页材料科学技术（英文版）

基　　金：funded by the National Key Research and Development Program of China(No.2021YFB3701001);the National Natural Science Foundation of China(No.U2102212);the Shanghai Rising-Star Program(No.21QA1403200);the Natural Science Foundation of Hunan Province for Distinguished Young Scholars(No.2021JJ10062).

摘　　要：The viscosity of molten metals is a critical parameter influencing melt fluidity,alloy forming quality,and casting performance.It is therefore essential to maintain melt viscosity within an optimal range to enhance the fluidity and mold-filling capacity of molten metals.However,acquiring accurate data on liquid metal viscosity poses significant challenges due to the measurement difficulties and uncertainties in verifying the accuracy of theoretical calculations,hindering in-depth viscosity research.In this review,a systematic introduction of experimental methods for viscosity measurement and theoretical models for viscosity prediction was first conducted,together with an analysis on the advantages/disadvantages of each method/model.Then,all the experimental melt viscosities in unary,binary,ternary,and multi-component systems of light alloys especially aluminum alloys were summarized,and employed to verify the prediction accuracy of different theoretical models,ranging from physical,empirical,to geometrical ones.A comprehensive comparison between the predicted viscosities due to the theoretical model and the experimental data indicated that the CALPHAD approach and the machine learning method should be an effective strategy for predicting accurate viscosities in target alloy melts.Finally,the conclusions were drawn,and the future development directions for efficiently acquiring accurate viscosities in target alloy melts were also pointed out.

关 键 词：VISCOSITY Light alloys Alloy melt CALPHAD 

分 类 号：TG139[一般工业技术—材料科学与工程] TG172[金属学及工艺—合金]