Glass-Forming Ability and Mechanical Properties of Zr-Ni-Al Bulk Metallic Glasses with High Zr Content

Yan Hui Li; Wei Zhang; Chuang Dong; Akihiro Makino

doi:10.4028/www.scientific.net/MSF.750.306

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HomeMaterials Science ForumMaterials Science Forum Vol. 750Glass-Forming Ability and Mechanical Properties of...

Glass-Forming Ability and Mechanical Properties of Zr-Ni-Al Bulk Metallic Glasses with High Zr Content

Abstract:

The thermal stability and glass-forming ability (GFA) of Zr70Ni30−xAlx (x = 5 − 19) metallic alloys were investigated. Alloy with x = 8 has the largest critical diameter (dc) of 2 mm in the alloy series, which possesses the largest supercooled liquid region, Trg and γ value, simultaneously. Further addition of 2 − 4 at.% Nb to Zr70Ni22Al8 alloy by replacement of Zr increases the dc up to 6 mm. In addition, Zr70Ni22Al8 bulk metallic glass exhibits large compressive plastic strain of 13.8% with yielding stress of 1547 MPa and Young’s modulus of 79 GPa. Addition of Nb increases the strength but lowers the plasticity.

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Periodical:

Materials Science Forum (Volume 750)

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306-310

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.750.306

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Online since:

March 2013

Authors:

Yan Hui Li, Wei Zhang, Chuang Dong, Akihiro Makino

Keywords:

Bulk Metallic Glass (BMG), Glass-Forming Ability, Mechanical Property, Zr-Ni-Al Alloys

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