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

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-Ni6Ta6Ni3 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 ~ 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 (Tg = 993K) and a ultrahigh fracture strength of about 3.5 GPa.

关键词： Ni-Ta(Nb) Glassy alloys Cluster-plus-glue-atom model

作者: Jianbing QIANG Liang YUAN Qing WANG Yingmin WANG Chuang DONG Wei ZHANG Akihisa INOUE

作者单位: Shool of Material Science and Engineering, Dalian University of Technology,Dalian 116023, CHINA Institute for Materials Research, Tohoku University, Sendai 980-8577, JAPAN Shool of Material Scienc Institute for Materials Research, Tohoku University, Sendai 980-8577, JAPAN Shool of Material Scienc

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 395-399

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）