The correlation between weakest configurations and yield strength of Zr-based metallic glasses

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	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
刊名	JOURNAL OF NON-CRYSTALLINE SOLIDS
	2017-07-15
卷号	468 页码:52-57
关键词	Metallic glasses Yield strength Solvent atoms Free volume
ISSN号	0022-3093
中文摘要	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.
类目[WOS]	Materials Science, Ceramics ; Materials Science, Multidisciplinary
研究领域[WOS]	Materials Science
关键词[WOS]	MEDIUM-RANGE ORDER ; MECHANICAL-PROPERTIES ; STRUCTURAL HETEROGENEITY ; TRANSITION-TEMPERATURE ; AMORPHOUS-ALLOYS ; ELASTIC-MODULUS ; PLASTICITY ; FLOW ; RELAXATION ; STRAIN
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000403117200009
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60530]
专题	力学研究所_非线性力学国家重点实验室
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.
APA	Li MC.,蒋敏强.,Ding G.,Peng ZH.,Jiang F.,...&Sun J.(2017).The correlation between weakest configurations and yield strength of Zr-based metallic glasses.JOURNAL OF NON-CRYSTALLINE SOLIDS,468,52-57.
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.