| The correlation between weakest configurations and yield strength of Zr-based metallic glasses |
| Li MC; Jiang MQ(蒋敏强) ; Ding G; Peng ZH; Jiang F; He L; Sun J; Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China.
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| 发表期刊 | JOURNAL OF NON-CRYSTALLINE SOLIDS
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| 2017-07-15
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| 卷号 | 468页码:52-57 |
| ISSN | 0022-3093
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| 摘要 | A direct relationship between the yield strength and the atomic ratio of solvent (Zr) atoms in the Zr-Cu-Al-Ni metallic glasses system is firstly uncovered. It is found that either shear modulus or yield strength decreases almost nearly with the increase in atomic ratio of Zr. The origin of this relationship is ascribed to the preferential straining of the weakest configurations which consist of the solvent-solvent bonds and the free volume concentrated in them. It is suggested that a higher atomic ratio of Zr corresponds to a larger amount of weakest configurations which will facilitate the activation and the accumulation of the shear transformations and finally results in the lower yield strength. This finding may provide an effective strategy for designing high-strength metallic glasses by modifying the chemical composition. |
| 关键词 | Metallic Glasses
Yield Strength
Solvent Atoms
Free Volume
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| DOI | 10.1016/j.jnoncrysol.2017.04.021
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000403117200009
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| 关键词[WOS] | MEDIUM-RANGE ORDER
; MECHANICAL-PROPERTIES
; STRUCTURAL HETEROGENEITY
; TRANSITION-TEMPERATURE
; AMORPHOUS-ALLOYS
; ELASTIC-MODULUS
; PLASTICITY
; FLOW
; RELAXATION
; STRAIN
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| WOS研究方向 | Materials Science
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| WOS类目 | Materials Science, Ceramics
; Materials Science, Multidisciplinary
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| 项目资助者 | National Natural Science Foundation of China (NSFC)(51171138
; Major Fundamental Research Projects of National Security(613262)
; 11522221
; 11372315
; 51321003)
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| 课题组名称 | LNM冲击动力学与新型材料力学性能
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| 论文分区 | 一类
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| 力学所作者排名 | 2
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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://dspace.imech.ac.cn/handle/311007/60530
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China. |
推荐引用方式
GB/T 7714 |
Li MC,Jiang MQ,Ding G,et al. The correlation between weakest configurations and yield strength of Zr-based metallic glasses[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2017,468:52-57.
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| APA |
Li MC.,蒋敏强.,Ding G.,Peng ZH.,Jiang F.,...&Jiang, F .(2017).The correlation between weakest configurations and yield strength of Zr-based metallic glasses.JOURNAL OF NON-CRYSTALLINE SOLIDS,468,52-57.
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| MLA |
Li MC,et al."The correlation between weakest configurations and yield strength of Zr-based metallic glasses".JOURNAL OF NON-CRYSTALLINE SOLIDS 468(2017):52-57.
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