| Optimal glass-forming composition and its correlation with eutectic reaction in the Ti-Ni-Al ternary system |
| B. C. Lu; Y. Li; J. Xu
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| 2009
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| 发表期刊 | Journal of Alloys and Compounds
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| ISSN | 0925-8388
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| 卷号 | 467期号:1-2页码:261-267 |
| 摘要 | The composition dependence of glass-forming ability was investigated for the Ti-Ni-Al ternary alloys. Glassy ribbons were fabricated via single-roller melt spinning. The optimal glass-forming composition was located at Ti(54)Ni(32)Al(14), with a critical thickness of about 90 mu m for complete glass formation. With respect to the Ti-Ni binary alloy, Al addition in the system only marginally improves the glass-forming ability. It is attributed to a small atomic size difference between Ti and Al. For the Ti(54)Ni(32)Al(14) alloy, together with the binary eutectic Ti(76)Ni(24) and hypereutectic Ti(68)Ni(32) alloys for comparison, phase selection in the arc-melted ingots was investigated. The optimal glass-forming composition, Ti(54)Ni(32)Al(14), is near the univariant eutectic groove of [L --> Ti(Al)(2)Ni + beta-Ti(Al)] in the phase diagram. It is suggested that if the primary crystallization of the Ti(2)Ni intermetallic can be suppressed, solidification of deeply undercooled melt will undergo such a eutectic reaction prior to glass formation. (C) 2008 Elsevier B.V. All rights reserved. |
| 部门归属 | [lu, bao-chen; xu, jian] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, yi] natl univ singapore, dept mat sci & engn, singapore 117675, singapore.;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
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| 关键词 | Metallic Glasses
Rapid Solidification
Melt Spinning
Titanium
Eutectic
Bulk Metallic-glass
Supercooled Liquid Region
Amorphous-alloys
Mechanical-properties
Critical Size
Thin-films
Zr
Hf
Strength
Ability
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| URL | 查看原文
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| WOS记录号 | WOS:000262412000052
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/32143
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| 专题 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
B. C. Lu,Y. Li,J. Xu. Optimal glass-forming composition and its correlation with eutectic reaction in the Ti-Ni-Al ternary system[J]. Journal of Alloys and Compounds,2009,467(1-2):261-267.
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| APA |
B. C. Lu,Y. Li,&J. Xu.(2009).Optimal glass-forming composition and its correlation with eutectic reaction in the Ti-Ni-Al ternary system.Journal of Alloys and Compounds,467(1-2),261-267.
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| MLA |
B. C. Lu,et al."Optimal glass-forming composition and its correlation with eutectic reaction in the Ti-Ni-Al ternary system".Journal of Alloys and Compounds 467.1-2(2009):261-267.
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