Effect of Cu content on the glass forming ability of Cu-Zr-Ti system studied by ion beam mixing  

作　　者：WANG Yuan Yu WANG Qi LIU Bai Xin 

机构地区：[1]Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University

出　　处：《Science China(Technological Sciences)》2015年第4期750-752,共3页中国科学（技术科学英文版）

基　　金：The National Natural Science Foundation of China(Grant No.51131003);The National Basic Research Program of China("973"Project)(Grant Nos.2011CB606301,2012CB825700);The Administration of Tsinghua University

摘　　要：Based on the Cu-Zr-Ti ternary phase diagram,four sets of Cu-Zr-Ti multilayered films with various compositions of Cu20Zr36Ti44,Cu36Zr31Ti33,Cu49Zr24Ti27,and Cu67Zr16Ti17 were prepared and then the ion beam mixing was carried out.It turned out that the increase of Cu content doesn't always have a positive effect on the glass forming ability.The glass forming ability of Cu49Zr24Ti27 was degraded due to the appearance of a Cs Cl-type B2 structure Cu Zr phase in the eutectic region.The experimental observations justify the existence of the Cu Zr phase under the non-equilibrium condition.Possible formation mechanisms for the crystalline phase were also discussed in terms of the atomic collision theory.

关 键 词：glass forming ability ion beam mixing FILMS 

分 类 号：TG139.8[一般工业技术—材料科学与工程]