| Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni |
| H. Ma; L. L. Shi; J. Xu; Y. Li; E. Ma
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| 2006
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| 发表期刊 | Journal of Materials Research
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| ISSN | 0884-2914
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| 卷号 | 21期号:9页码:2204-2214 |
| 摘要 | Based on the best bulk metallic glass (BMG) forming alloy in the Mg-Cu-Y ternary system, we introduced Ag (or Ni) to partially substitute for Cu to improve the glass-forming ability (GFA). The objective of this paper is twofold. First, we illustrate in detail a recently developed search strategy, which was proposed but only briefly outlined in our previous publication [H. Ma, L.L. Shi, J. Xu, Y. Li, and E. Ma: Discovering inch-diameter metallic glasses in three-dimensional composition space. Appl. Phys. Lett. 87, 181915 (2005)]. The protocol to navigate in three-dimensional composition space to land large BMGs is spelled out step-by-step using the pseudo-ternary Mg-(Cu,Ag)-Y as the model system. Second, our ability to locate the best BMG former in the composition tetrahedron allows us to systematically examine, and conclude on, the effects of a given alloying element. The large improvement in glass-forming ability in the Mg-(Cu,Ag)-Y system relative to the based ternary will be contrasted with the reduced glass-forming ability in the Mg-(Cu,Ni)-Y pseudo ternary system. It is demonstrated that the improvement of glass-forming ability requires judicious choice of substitutional alloying elements and concentrations, rather than simple additions of multiple elements assuming the "confusion principle." |
| 部门归属 | chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. natl univ singapore, dept mat sci & engn, singapore 117675, singapore. johns hopkins univ, dept mat sci & engn, baltimore, md 21218 usa.;xu, j (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;jianxu@imr.ac.cn
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| 关键词 | Bulk Metallic-glass
Shaped Copper Mold
Amorphous-alloys
Thermal-stability
Ternary-system
Casting Method
p System
Diameter
Zr
Mm
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| URL | 查看原文
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| WOS记录号 | WOS:000240578900008
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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/321006/34394
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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 |
H. Ma,L. L. Shi,J. Xu,et al. Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni[J]. Journal of Materials Research,2006,21(9):2204-2214.
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| APA |
H. Ma,L. L. Shi,J. Xu,Y. Li,&E. Ma.(2006).Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni.Journal of Materials Research,21(9),2204-2214.
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| MLA |
H. Ma,et al."Improving glass-forming ability of Mg-Cu-Y via substitutional alloying: Effects of Ag versus Ni".Journal of Materials Research 21.9(2006):2204-2214.
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