Preparation and mechanical properties of ternary Ti-Cu-Ni bulk metallic glasses

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作者：
Liaoning University of Technology, Jinzhou 121001, China [1 ]
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来源：
Xiyou Jinshu Cailiao Yu Gongcheng | 2008年 / 7卷 / 1163-1166期
关键词：
Fracture toughness - Ternary alloys - Casting - Copper alloys - Glass - Glass transition - Metallic glass;
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摘要：
The bulk metallic glass (BMG) with a diameter of 2 mm at least has been successfully fabricated by a conventional Cu-mold casting method for Ti50Cu42Ni8 alloy. The glass-forming ability (GFA), the thermal stability and mechanical properties have been investigated for the ternary Ti50Cu50-xNix (x=5, 8, 11) alloys by XRD, DSC and SEM. The results show that the Ti50Cu42Ni8 BMG exhibits a wide undercooled liquid region Δ Tx of 57 K, a high reduced glass transition temperature Trg of 0.565 and a compressive fracture strength of 2008 MPa.
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