Complete Composition Tunability of Cu(Ni)-Ti-Zr Alloys

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	Complete Composition Tunability of Cu(Ni)-Ti-Zr Alloys
	Z. X. Zhang; C. L. Dai; J. Xu
	2009
发表期刊	Journal of Materials Science & Technology
ISSN	1005-0302
卷号	25 期号:1 页码:39-47
摘要	In the Cu-Zr-Ti ternary system, a new composition zone of bulk metallic glasses (BMGs) formation was discovered, locating at the 55-57 at. pct Cu, 30-31 at. pct Ti and 13-14 at. pct Zr, and near Cu-Ti binary subsystem rather than the Cu-Zr binary. For these alloys, BMG rods of 2 mm in diameter can be fabricated by using copper mould casting. It is expected that these BMG-forming alloys correlate with (L -> CuTi+Cu(2)TiZr+Cu(51)zr(14)) eutectic reaction that the undercooled melt undergoes during solidification. Adopting "3D pinpointing approach", compositional dependence of glass-forming ability (GFA) in Cu(Ni)-Ti-Zr pseudo ternary system was revisited. Optimized BMG-forming composition is located at Cu(50.4)Ni(5.6)Ti(31)Zr(13), with a critical diameter of 6 mm for complete BMG formation. Its GFA is significantly superior to Vit 101 (Cu(47)Ni(8)Ti(34)Zr(11)) previously developed by Caltech group. The effect that the GFA of the ternary base alloy was improved by substitution of Ni for Cu is attributed to a role of retarding the crystallization of Cu(51)Zr(14) intermetallics.
部门归属	[zhang, ze-xiu; dai, chun-li; xu, jian] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;xu, j (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;jianxu@imr.ac.cn
关键词	Bulk Metallic Glasses Amorphous Alloys Eutectic Copper Glass-forming Ability Bulk Metallic-glass Cu-ti-zr Eutectic Reaction Amorphous-alloys System Ni Si Plasticity Diameter
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WOS记录号	WOS:000263620900002
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32596
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. X. Zhang,C. L. Dai,J. Xu. Complete Composition Tunability of Cu(Ni)-Ti-Zr Alloys[J]. Journal of Materials Science & Technology,2009,25(1):39-47.
APA	Z. X. Zhang,C. L. Dai,&J. Xu.(2009).Complete Composition Tunability of Cu(Ni)-Ti-Zr Alloys.Journal of Materials Science & Technology,25(1),39-47.
MLA	Z. X. Zhang,et al."Complete Composition Tunability of Cu(Ni)-Ti-Zr Alloys".Journal of Materials Science & Technology 25.1(2009):39-47.