Structural and thermal sensitivity of Cu-Zr-Ti amorphous alloys to tension  

作　　者：CAI AnHui XIONG Xiang LIU Yong AN WeiKe ZHOU GuoJun LUO Yun LI TieLin LI XiaoSong 

机构地区：[1]College of Mechanical Engineering,Hunan Institute of Science and Technology [2]State Key Laboratory of Powder Metallurgy,Central South University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2013年第8期1606-1610,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：the National Natural Science Foundation (Grant No. 50874045);the Scientific Research Fund of the Hunan Provincial Education Department (Grant No. 10A044)

摘　　要：Structural and thermal sensitivity of Cu(60-x)Zr(30+x) Ti 10 (x=0,5,and 10 at%) amorphous alloys to the application of tension was investigated. The structural sensitivity to tension decreases with increasing Cu content. The crystallization enthalpy increases with increasing excess free volume. The characteristic temperatures of the tensile samples can surpass those of the as-cast ones under a critical heating rate which differs in the Cu content. The increase of the excess free volume significantly influences the glass transition and crystallization procedures.Structural and thermal sensitivity of Cu（60-x）Zr（30＋x）Ti10 （x=0, 5, and 10 at%） amorphous alloys to the application of tension was investigated. The structural sensitivity to tension decreases with increasing Cu content. The crystallization enthalpy increases with increasing excess free volume. The characteristic temperatures of the tensile samples can surpass those of the as-cast ones under a critical heating rate which differs in the Cu content. The increase of the excess free volume significantly influences the glass transition and crystallization procedures.

关 键 词：Cu-based amorphous alloy tension sensitivity 

分 类 号：TG139.8[一般工业技术—材料科学与工程]