Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2010-10-01

Journal: 7th International Conference on Bulk-Metallic Glasses

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

Volume: 18

Issue: 10,SI

Page Number: 1851-1855

ISSN: 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.