Multi-solute solid solution behavior and its effect on the properties of magnesium alloys  

作　　者：Jun Wang Yuan Yuan Tao Chen Liang Wu Xianhuan Chen Bin Jiang Jingfeng Wang Fusheng Pan 

机构地区：[1]National Engineering Research Center for Magnesium Alloys,College of Materials Science and Engineering,Chongqing University,Chongqing 400000,PR China

出　　处：《Journal of Magnesium and Alloys》2022年第7期1786-1820,共35页镁合金学报（英文）

基　　金：financially National Natural Science Foundation of China(52171100,51971044,U20A20234 and U1910213);the National Key R&D Program of China(2021YFB3701100);the Natural Science Foundation of Chongqing(cstc2019yszx-jcyj X0004)。

摘　　要：The low-density magnesium(Mg)alloys are attractive for the application in aerospace,transportation and other weight-saving-required fields.The mechanical properties and corrosion properties of Mg alloys are the key-property issues for the wide application.It is surprising to find that the solid solution of alloying elements in theα-Mg phase can have multi-effects on the properties of Mg alloys,e.g.,solid solution strengthening,solid solution corrosion-resistance-enhancing,etc.Additionally,the alloy design theory of"solid solution strengthening and ductilizing"proposed by Pan and co-workers has attracted extensive attentions.It is promising that by selected proper multi-alloying-elements(with optimal ratio)solid solutioned in theα-Mg phase,the comprehensive properties of Mg alloys can be synergistically improved.In this work,the solid solution behavior of Mg alloys and the followed solid solution property-enhancing effects were reviewed.The mechanisms proposed recently by researchers for these solid solution property-enhancing behaviors were presented,and the related calculations and predictions were also described.It is shown the demonstrations of the fundamentals for the solid solution property-enhancing of Mg alloys,especially from the atomic inter-reaction aspects,still require elaborated characterization work and calculation work.Additionally,it could be expected that the multi-solute in Mg alloys can bring many possibilities,or,in another saying,"cocktail effects".With understanding the multi-solute interaction behavior and the corresponded solid solution property-enhancing effects,the good balanced high-performance Mg alloys can be developed.

关 键 词：Mg alloys Solid solution STRENGTH DUCTILITY CORROSION-RESISTANCE 

分 类 号：TG146.22[一般工业技术—材料科学与工程]