Bending behavior of as-cast and annealed ZrCuNiAl bulk metallic glass  

作　　者：Yongjiang Huang Zhiliang Ning Zhe Shen Weizhong Liang Haicao Sun Jianfei Sun 

机构地区：[1]School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China [2]National Key Laboratory of Precision Hot Processing of Metals, Harbin Institute of Technology, Harbin 150001, China [3]Shenyang Engine Research Institute, Aero Engine Corporation of China, Shenyang 110000, China [4]School of Materials Science and Engineering, Heilongjiang University of Science and Technology, Harbin 150027, China

出　　处：《Journal of Materials Science & Technology》2017年第10期1153-1158,共6页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grant Nos. 51671067, 51371078 and 51671070

摘　　要：Here ZrCuNiAl bulk metallic glass samples were annealed below its glass transition temperature. The bending behaviors and thermal properties of the as-cast and the annealed samples were studied. The increase of annealing time leads to the transition from ductile to more brittle behavior during bending tests. Meanwhile, prolonging the annealing causes a gradual decrease in the free volume content. Based on free volume theory, the change in the microstructure and mechanical properties induced by annealing treatment has been interpreted in detail.Here ZrCuNiAl bulk metallic glass samples were annealed below its glass transition temperature. The bending behaviors and thermal properties of the as-cast and the annealed samples were studied. The increase of annealing time leads to the transition from ductile to more brittle behavior during bending tests. Meanwhile, prolonging the annealing causes a gradual decrease in the free volume content. Based on free volume theory, the change in the microstructure and mechanical properties induced by annealing treatment has been interpreted in detail.

关 键 词：Bulk metallic glasses ANNEALING BENDING FRACTURE Free volume 

分 类 号：TG139.8[一般工业技术—材料科学与工程]