Quasistatic and Dynamic Tensile Behavior of Zr_(52.5)Al_(10)Ni_(10)Cu_(15)Be_(12.5) Bulk Metallic Glass  

作　　者：Xueshan XIAO, Weihuo LI, Lei XIA, Shoushi FANG, Qin HUA and Yuanda DONGInstitute of Materials, Shanghai University, Shanghai 200072, China 

出　　处：《Journal of Materials Science & Technology》2003年第5期410-412,共3页材料科学技术（英文版）

基　　金：support of the National Natural Science Foundation of China(No.59971028 and No.50031010)

摘　　要：Quasistatic and dynamic tensile behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk amorphous alloy was investigated at the strain rates of 10-4-103 s-1 by using a Shimadzu AG-100KNA autograph and a pneumatic tensile impact tester. It was shown that the tensile fracture strength and the fracture morphology were sensitive to the strain rate. With the increase of the strain rate, the tensile fracture strength decreased and the fracture morphology changed from cleavage into quasi-cleavage, and then into a mixture of microvoid-coalescence dimples and quasi-cleavage veins.Quasistatic and dynamic tensile behavior of Zr52.5Al10Ni10Cu15Be12.5 bulk amorphous alloy was investigated at the strain rates of 10-4-103 s-1 by using a Shimadzu AG-100KNA autograph and a pneumatic tensile impact tester. It was shown that the tensile fracture strength and the fracture morphology were sensitive to the strain rate. With the increase of the strain rate, the tensile fracture strength decreased and the fracture morphology changed from cleavage into quasi-cleavage, and then into a mixture of microvoid-coalescence dimples and quasi-cleavage veins.

关 键 词：Mechanical properties Bulk metallic glass FRACTURE 

分 类 号：TG139.8[一般工业技术—材料科学与工程]