MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Ni-Based Refractory Bulk Amorphous Alloys with High Thermal Stability
Minha LeeDonghyun BaeWontae KimDohyang Kim
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2003 Volume 44 Issue 10 Pages 2084-2087

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Abstract

Enhancement of thermal stability and glass forming ability in Ni60Nb40−xTax (x=0, 3, 5, 10, 20 at%) alloys has been investigated. The crystallization temperature increases from 660°C in binary Ni60Nb40 amorphous phase to 721°C in Ni60Nb20Ta20 amorphous phase. The fully amorphous rod with diameter of 2 mm is fabricated in Ni60Nb30Ta10 alloy by an injection casting method. The compressive failure strength of the Ni60Nb30Ta10 bulk amorphous alloy is 3346 MPa.

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© 2003 The Japan Institute of Metals and Materials
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