Shear stress induced reduction of glass transition temperature in a bulk metallic glass

IMR OpenIR

	Shear stress induced reduction of glass transition temperature in a bulk metallic glass
	H. Jin; J. Wen; K. Lu
	2005
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	53 期号:10 页码:3013-3020
摘要	In contrast to previous observations of a slight increase in glass transition temperature (T-g) under hydrostatic pressure, we report, for the first time, a drastic reduction of T-g (40 K/500 MPa) induced by shear stress in a Zr46.75Ti8.25Cu7.5Ni10.0Be27.5 bulk metallic glass, which gives rise to the experimental observation of the drastic decrease in flow temperature while a compressive stress was applied. The significant T-g reduction is attributed to a large activation volume of relaxation &UDelta; V-t under shear stress (126 &ANGS;(3)), and can be quantitatively interpreted in terms of the free volume model. © 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.;lu, k (reprint author), chinese acad sci, met res inst, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;hjjin@imr.ac.cn lu@imr.ac.cn
关键词	Metallic Glasses Enthalpy Recovery Glass Transition Pressure Stress Free Volume Activation Volume Structural Relaxation Plastic-flow Free-volume Pressure Deformation Liquids Thermodynamics Mechanisms Diffusion Kinetics
URL	查看原文
WOS记录号	WOS:000229519400016
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34886
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. Jin,J. Wen,K. Lu. Shear stress induced reduction of glass transition temperature in a bulk metallic glass[J]. Acta Materialia,2005,53(10):3013-3020.
APA	H. Jin,J. Wen,&K. Lu.(2005).Shear stress induced reduction of glass transition temperature in a bulk metallic glass.Acta Materialia,53(10),3013-3020.
MLA	H. Jin,et al."Shear stress induced reduction of glass transition temperature in a bulk metallic glass".Acta Materialia 53.10(2005):3013-3020.