Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses

doi:10.1007/s11431-006-0414-x

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	Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses
	Xing DM(邢冬梅); Zhang TH(张泰华); Li WH(李维火); Wei BC(魏炳忱); Zhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China.
发表期刊	Science In China Series E-Technological Sciences
	2005
卷号	49 期号:4 页码:414-424
ISSN	1006-9321
摘要	Plastic deformation behaviors of Zr65Al10Ni10CU15 and Zr52.5Al10Ni10Cu15Be12.5 bulk metallic glasses (BMGs) are studied by using the depth-sensing nanoindentation, microindentation and uniaxial compression. The Be-containing BMG exhibits a significantly improved overall plastic strain compared with the Be-free alloy during compressive tests. Both BMGs show a loading-rate-dependent serrated flow during nanoindentation measurements, but the Be-containing alloy exhibits a much lower critical loading rate for the disappearance of the serration than the Be-free BMG. The shear band patterns developed during plastic deformation are investigated by microindentation technique, wherein much higher shear band density is found in the Be-containing alloy than in the Be-free alloy, indicating an easier nucleation of shear bands in the former BMG. The difference in the plastic deformation behavior of the two BMGs can be explained by a free volume model.
学科领域	力学
DOI	10.1007/s11431-006-0414-x
收录类别	SCI
语种	英语
WOS记录号	WOS:000240411000005
关键词[WOS]	FREE-VOLUME MODEL ; SERRATED FLOW ; NANOINDENTATION ; TRANSITION ; ALLOYS ; LIQUID
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/17236
专题	力学所知识产出(1956-2008)
通讯作者	Zhang, TH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Xing DM,Zhang TH,Li WH,et al. Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses[J]. Science In China Series E-Technological Sciences,2005,49,4,:414-424.
APA	邢冬梅,张泰华,李维火,魏炳忱,&Zhang, TH .(2005).Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses.Science In China Series E-Technological Sciences,49(4),414-424.
MLA	邢冬梅,et al."Characterization of Plastic Flow in Two Zr-Based Bulk Metallic Glasses".Science In China Series E-Technological Sciences 49.4(2005):414-424.

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