Binary Ni-Ta bulk metallic glasses designed by using a cluster-plus-glue-atom model

被引:3
作者
Qiang, Jianbing [1 ]
Yuan, Liang [1 ]
Wang, Qing [1 ]
Wang, Yingmin [1 ]
Dong, Chuang [1 ]
Zhang, Wei [1 ]
Inoue, Akihisa [1 ]
机构
[1] Dalian Univ Technol, Shool Mat Sci & Engn, Dalian 116023, Peoples R China
来源
NANO-SCALE AND AMOURPHOUS MATERIALS | 2011年 / 688卷
关键词
Ni-Ta(Nb); Glassy alloys; Cluster-plus-glue-atom model; CU-ZR; MECHANICAL-PROPERTIES; ALLOYS; STABILITY; SYSTEM;
D O I
10.4028/www.scientific.net/MSF.688.395
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
With the aid of the atomic-cluster-plus-glue-atom model (ACPGA model) proposed by Dong et al [1] for bulk metallic glasses (BMGs), the formation and characteristic of Ni-Ta binary BMGs were investigated in this work. Binary glass-forming compositions containing 56.3-62.5 at.%-Ni were obtained by a composition formula [M-Ni6Ta6]Ni-3 based on the ACPGA model. It was found that Ni-Ta BMGs with a diameter of 2 mm was obtained over a composition range of 59 similar to 62 at.%-Ni by copper mold casting method, which are in good agreement with our model prediction. Newly-developed Ni-Ta BMGs are a kind of extreme materials, which exhibit superior thermal stability (T-g = 993K) and a ultrahigh fracture strength of about 3.5 GPa.
引用
收藏
页码:395 / 399
页数:5
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