Low-temperature shear banding for a Cu-based bulk-metallic glass

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Title:	Low-temperature shear banding for a Cu-based bulk-metallic glass
Authors:	Qiao,JW;Jia,HL;Chuang,CP;Huang,EW;Wang,GY;Liaw,PK;Ren,Y;Zhang,Y
Contributors:	化學工程與材料工程學系
Keywords:	DEFORMATION;FRACTURE
Date:	2010
Issue Date:	2012-03-27 16:25:27 (UTC+8)
Publisher:	國立中央大學
Abstract:	Compared to its mechanical behavior at 298 K, the fracture strain of a Cu(46)Zr(46)Al(8) bulk-metallic glass is slightly increased, but the maximum strength is distinctly increased by 13.3% at 77 K. At 77 K, the serrations in the stress strain curve disappear. Based on the calculation of the temperature rise within the shear bands and the heat conduction in the heat-affected zones, the large and instantaneous temperature rise and the rapid heat conduction are responsible for the disappearance of serrations upon shear banding. Crown Copyright (C) 2010 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.
Relation:	SCRIPTA MATERIALIA
Appears in Collections:	[Department of Chemical and Materials Engineering] journal & Dissertation

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