Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti(3)Sn pseudo binary eutectics

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	Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti(3)Sn pseudo binary eutectics
	B. C. Lu; J. Xu
	2008
发表期刊	Journal of Non-Crystalline Solids
ISSN	0022-3093
卷号	354 期号:52-54 页码:5425-5431
摘要	Glass-forming ability (GFA) of Ti-Ni-Sn ternary alloys was investigated. Applying recent models based oil atomic size ratio and efficient packing, the composition favoring the glass formation is predicted. Our experiments indicate that the optimized glass-forming composition is located at Ti(56)Ni(38)Sn(6), with the critical thickness of complete glass formation approaching 100 mu m for the melt-spun ribbons. The Ti(56)Ni(38)Sn(6) metallic glass exhibits a sizable supercooled liquid region (Delta T(x)) of about 35 K and a reduced glass transition temperature (T(rg)) of 0.52. We demonstrate that the glass formation of the Ti(56)Ni(38)Sn(6) alloy correlates with the (L -> TiNi + Ti(3)Sn) Pseudo binary eutectic reaction in Ti-Ni-Sn ternary system, which has an invariant temperature and composition at similar to 1370 K and similar to Ti(58)Ni(34)Sn(8), respectively. With respect to Sn-free Ti-Ni binary alloys, the GFA is enhanced for the Ti-Ni-Sn ternary alloys, but the improvement is limited possibly due to changes in the crystalline phases competing with glass formation. (C) 2008 Elsevier B.V. All rights reserved.
部门归属	[lu, bao-chen; xu, jian] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;xu, j (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;jianxu@imr.ac.cn
关键词	Alloys Scanning Electron Microscopy Calorimetry Glass Transition X-ray Diffraction Bulk Metallic-glass Supercooled Liquid Region Amorphous-alloys Mechanical-properties Forming Ability Structural Model Atomic Packing Critical Size System Strength
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32987
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. C. Lu,J. Xu. Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti(3)Sn pseudo binary eutectics[J]. Journal of Non-Crystalline Solids,2008,354(52-54):5425-5431.
APA	B. C. Lu,&J. Xu.(2008).Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti(3)Sn pseudo binary eutectics.Journal of Non-Crystalline Solids,354(52-54),5425-5431.
MLA	B. C. Lu,et al."Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti(3)Sn pseudo binary eutectics".Journal of Non-Crystalline Solids 354.52-54(2008):5425-5431.