Effects of Y on the Microstructure, Mechanical and Bio-corrosion Properties of Mg-Zn-Ca Bulk Metallic Glass

作     者：Jingfeng Wang Yang Li Song Huang Yiyun Wei Xingfeng Xi Kaiyong Cai Fusheng Pan 

作者机构：National Engineering Research Center for Magnesium Alloys College of Materials Science and Engineering Chongqing University China Academy of Engineering Physics College of Bioengineering Chongqing University 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2014年第30卷第12期

页      面：1255-1261页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：support of the National Natural Science Foundation of China (No. 51271206), China the National Basic Research Program of China (No. 2013 CB632201), China the Program for New Century Excellent Talents in University (No. NCET-11-0554), China 

主　　题：Mg alloy Microstructure Mechanical properties Bio-corrosion resistance Bio-compatibility 

摘      要：The micro-alloying effects of Y on the microstructure, mechanical properties, and bio-corrosion behavior of Mg69-xZn27Ca4Yx（x= 0, 1, 2 at.%） alloys were investigated through X-ray diffraction, compressive tests,electrochemical treatments, and immersion tests. The Mg69Zn27Ca4 alloy was found to be absolutely amorphous, and its glass-forming ability decreased with the addition of Y. The Mg68Zn27Ca4Y1 alloy exhibited an ultrahigh compressive strength above 1010 MPa as well as high capacity for plastic strain above 3.1%.Electrochemical and immersion tests revealed that these Y-doped MgeZ neC a alloys had good bio-corrosion resistance in simulated body fluid（SBF） at 37℃. The results of the cytotoxicity test showed high cell viabilities for these alloys, which means good bio-compatibility.