Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass

doi:10.1016/j.intermet.2005.01.012

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	Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass
	Dai LH(戴兰宏); Bai YL(白以龙); Wei BC(魏炳忱); Yu GS; Dai, LH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China.
发表期刊	Intermetallics
	2005
卷号	13 期号:8 页码:827-832
ISSN	0966-9795
摘要	Compressive deformation behavior of the Nd60Fe20Co10Al10 bulk metallic glass was characterized over a wide strain rate range (6.0 x 10(-4) to 1.0x10(3) s(-1)) at room temperature. Fracture stress was found to increase and fracture strain decrease with increasing applied strain rate. Serrated flow and a large number of shear bands were observed at the quasi-static strain rate (6.0 x 10(-4)s(-1)). The results suggest that the appearance of a large number of shear bands is probably associated with flow serration observed during compression; and both shear banding and flow serration are a strain accommodation and stress relaxation process. At dynamic strain rates (1.0 x 10(3) s(-1)), the rate of shear band nucleation is not sufficient to accommodate the applied strain rate and thus causes an early fracture of the test sample. The fracture behavior of the Nd60Fe20Co10Al10 bulk metallic glass is sensitive to strain rate.
学科领域	力学
DOI	10.1016/j.intermet.2005.01.012
收录类别	SCI
语种	英语
WOS记录号	WOS:000229247500004
关键词[WOS]	AMORPHOUS-ALLOYS ; MECHANICAL-PROPERTIES ; THERMAL-STABILITY ; FORMING ABILITY ; CASTING METHOD ; SERRATED FLOW ; PLASTIC-FLOW ; FRACTURE ; NANOINDENTATION ; MICROSTRUCTURE
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
引用统计	被引频次：56[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/311007/16886
专题	力学所知识产出(1956-2008)
通讯作者	Dai, LH (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Dai LH,Bai YL,Wei BC,et al. Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass[J]. Intermetallics,2005,13,8,:827-832.
APA	戴兰宏,白以龙,魏炳忱,Yu GS,&Dai, LH .(2005).Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass.Intermetallics,13(8),827-832.
MLA	戴兰宏,et al."Strain Rate-Dependent Compressive Deformation Behavior of Nd-Based Bulk Metallic Glass".Intermetallics 13.8(2005):827-832.

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