Light Emission and Dynamic Failure Mechanism of Hypervelocity Impact on Zr-Ti-Ni-Cu-Be Bulk Metallic Glass  

作　　者：SUN Bao-Ru ZHAN Zai-Ji LIANG Bo ZHANG Rui-Jun WANG Wen-Kui 孙宝茹;战再吉;梁波;张瑞军;王文魁(State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004)

机构地区：[1]State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao 066004

出　　处：《Chinese Physics Letters》2011年第9期201-204,共4页中国物理快报（英文版）

基　　金：by the National Basic Research Program of China(973 Program)under Grant No 2010CB731600.

摘　　要：Hypervelocity impact on rectangular plate-shaped Zr41Ti14Cu12.5Ni10Be22.5 bulk metallic glass(BMG)is performed by a two−stage light gas gun.The targets used in the experiment are BMG plates with a thickness of 5 mm.The projectile,spherical aluminum(3.1 mm in diameter),is accelerated up to various velocities;the light is detected with a radiometer.The emission lasts from 200µs up to 1500µs and the intensity increases from 44 to 900 W/(Sr⋅µm).The duration and intensity of a light emission seem to depend on the impact velocity and the extent of target destruction through the formation of impact craters or penetration.

关 键 词：IMPACT IMPACT SHAPED 

分 类 号：TG1[金属学及工艺—金属学]