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Indexed by:期刊论文

Date of Publication:2010-10-01

Journal:7th International Conference on Bulk-Metallic Glasses

Included Journals:SCIE、EI、CPCI-S、Scopus

Volume:18

Issue:10,SI

Page Number:1851-1855

ISSN No.:0966-9795

Key Words:Glasses; metallic; Thermal stability; Casting; Mechanical properties at ambient temperature

Abstract:The addition of Al to a binary Zr(75)Ni(25) alloy greatly increases the stabilization of the supercooled liquid as well as the glass-forming ability (GFA) in Zr(75-x)Ni(25)Al(x) (x = 0-24) alloy series. The large supercooled liquid region (Delta T(x)) of over 80 K and critical sample diameter (d(c)) for glass formation above 12 mm were obtained in a wide composition range of x = 11-19. The largest d(c) of 15 mm was fabricated for an off-eutectic Zr(60)Ni(25)Al(15) alloy, which has the largest Delta T(x) of 93 K and gamma value of 0.396. The bulk glassy alloys exhibited excellent mechanical properties, i.e., high compressive fracture strength of 1662-1958 MPa and large compressive plastic strain of 3.0-4.7%. (C) 2010 Elsevier Ltd. All rights reserved.