Effect of structural relaxation on deformation behaviour of Zr-based metallic glass

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	Effect of structural relaxation on deformation behaviour of Zr-based metallic glass
	Liu Y(刘渊); Zhang TH(张泰华); Wei BC(魏炳忱); Xing DM(邢冬梅); Li WH(李维火); Zhang LC(张凌晨)
刊名	Chinese Physics Letters
	2006
通讯作者邮箱	weibc@imech.ac.cn
卷号	23 期号:7 页码:1868-1871
ISSN号	0256-307X
通讯作者	Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Beijing 100080, Peoples R China.
中文摘要	Structural relaxation through isothermal annealing at tempertature below glass transition is conducted on Zr46.75Ti8.25Cu7.5Ni10Be27.5 (Vitreloy-4) bulk metallic glass. Defect concentration is correlated with the annealing time t according to differential scanning calorimetry thermalgrams. The effects of structural relaxation on mechanical properties and deformation behaviour are investigated by using instrumented nanoindentation. It is found that as-cast alloy exhibits pronounced serration flow during the loading process of nanoindentation, and the size and number of serrations decrease with the annealing time. The change of the deformation behaviour with structural relaxation is explained using a free volume model.
学科主题	力学
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	NANOINDENTATION ; ALLOYS ; FLOW ; EMBRITTLEMENT ; TEMPERATURE
收录类别	SCI
语种	英语
WOS记录号	WOS:000238999500059
公开日期	2007-06-15
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/16475]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Liu Y,Zhang TH,Wei BC,et al. Effect of structural relaxation on deformation behaviour of Zr-based metallic glass[J]. Chinese Physics Letters,2006,23(7):1868-1871.
APA	刘渊,张泰华,魏炳忱,邢冬梅,李维火,&张凌晨.(2006).Effect of structural relaxation on deformation behaviour of Zr-based metallic glass.Chinese Physics Letters,23(7),1868-1871.
MLA	刘渊,et al."Effect of structural relaxation on deformation behaviour of Zr-based metallic glass".Chinese Physics Letters 23.7(2006):1868-1871.