铸造Mg-RE合金晶粒细化行为研究现状与展望

吴国华, 童鑫, 蒋锐, 丁文江

Grain Refinement of As-Cast Mg-RE Alloys: Research Progress and Future Prospect

WU Guohua, TONG Xin, JIANG Rui, DING Wenjiang

图2 Al2Y颗粒与α-Mg基体的位向关系[26]以及Al2RE/α-Mg之间的错配度与其相界面能的关系[27]

Fig.2 Possible orientation relationships between Al2Y particles and α-Mg matrix calculated by edge to edge model (E2EM) (a)[26] and the relation between atom spacing mismatches and interface energy of Al2RE particles and α-Mg (b)[27] (γNS—interfacial energy between nucleant and solid Mg, γNL—interfacial energy between nucleant and liquid Mg, γSL—interfacial energy between solid Mg and liquid Mg, θc—contact angle at the interface between nucleant and solid Mg, γc—the difference between γNL and γNS)