Effect of thermal cycling on the mechanical properties of Zr_(41)Ti_(14)Cu_(12.5)Ni_(10)Be_(22.5) alloy  

作　　者：WANG Xin SHAO Yang GONG Pan YAO KeFu 

机构地区：[1]Department of Mechanical Engineering,Tsinghua University,Beijing 100084,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2012年第12期2357-2361,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2007CB613905);the National Natural Science Foundation of China(Grant Nos.50971073,51101090 and 51271095);Beijing Natural Science Foundation(Effect of pre-cyclic loading on mechanical behaviors of bulk amorphous alloys)

摘　　要：The effect of thermal cycling treatment on mechanical properties and thermal stability of a Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass is investigated.The metallic glassy samples are sealed into quartz tubes under high vacuum condition,and liquid nitrogen together with electric furnace are used to control a periodical temperature variation between 196℃ and 150℃.The structure and properties of the tested samples for different thermal cycles have been examined by X-ray diffraction analysis,mechanical properties measurement and thermal analysis.It has been found that the structure and properties of the samples do not show a significant change even after 200 cycles,which suggests Zr41Ti14Cu12.5Ni10Be22.5 alloy as having potential in aerospace environment.The effect of thermal cycling treatment on mechanical properties and thermal stability of a Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass is investigated.The metallic glassy samples are sealed into quartz tubes under high vacuum condition,and liquid nitrogen together with electric furnace are used to control a periodical temperature variation between 196℃ and 150℃.The structure and properties of the tested samples for different thermal cycles have been examined by X-ray diffraction analysis,mechanical properties measurement and thermal analysis.It has been found that the structure and properties of the samples do not show a significant change even after 200 cycles,which suggests Zr41Ti14Cu12.5Ni10Be22.5 alloy as having potential in aerospace environment.

关 键 词：bulk metallic glass thermal cycling mechanical properties thermal stability 

分 类 号：O614.612[理学—无机化学] TQ171.71[理学—化学]