锶和钙在镁-铝系合金中的应用及研究进展  

Application and Progress of Research of Strontium and Calcium in Mg-Al Based Alloys

作　　者：白晶[1] 孙扬善[1] 强立峰 诸天柏 

机构地区：[1]东南大学材料科学与工程系,江苏南京210096 [2]南京云海特种金属有限公司,江苏南京211221

出　　处：《铸造》2006年第1期1-5,共5页Foundry

基　　金：国家"863"计划资助项目(No.2001AA331030-01);江苏省自然科学基金预研项目(No.BK2004208)。

摘　　要：论述了耐热镁合金的研究现状。介绍了碱土元素Ca和Sr对Mg-Al系合金的铸造性能、微观组织、拉伸性能和抗蠕变性能的影响。同时对Ca、Sr在镁合金中应用前景作了展望。This paper reviews the current research development and application status of elevated temperature magnesium alloys and summarizes various new magnesium alloys containing alkaline earth elements that have been developed in recent years for elevated temperature applications. The effects of alkaline earth elements Sr and Ca on the castabilities, microstructures, mechanical properties and tensile creep resistance of Mg-Al based magnesium alloys are analyzed and discussed. The potential applications of these alloys in automotive industry are also pointed out.

关 键 词：CA SR 耐热镁合金 抗蠕变 

分 类 号：TG146[一般工业技术—材料科学与工程]