Binary Ni-Ta Bulk Metallic Glasses Designed by Using a Cluster-Plus-Glue-Atom Model
2011 ◽
Vol 688
◽
pp. 395-399
◽
Keyword(s):
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]Ni3based 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.
2007 ◽
Vol 561-565
◽
pp. 1275-1278
◽
2007 ◽
Vol 22
(1)
◽
pp. 164-168
◽
2009 ◽
Vol 23
(06n07)
◽
pp. 1235-1240
◽
2007 ◽
Vol 22
(6)
◽
pp. 1710-1717
◽
2008 ◽
Vol 23
(7)
◽
pp. 1940-1945
◽
Keyword(s):
Keyword(s):