Mesoscopic theory of shear banding and crack propagation in metallic glasses

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5386

Title:	Mesoscopic theory of shear banding and crack propagation in metallic glasses
Authors:	Zheng, G Li, M
Issue Date:	1-Sep-2009
Source:	Physical review. B, Condensed matter and materials physics, 1 Sept. 2009, v. 80, no. 10, 104201, p. 1-6
Abstract:	We propose a phenomenological theory to model shear banding, shear-band propagation and branching on mesoscopic scales in metallic glasses by using Ginzburg-Landau formulism. The disordering caused by mechanical or thermal agitation is represented by atomic volume dilatation and used as an order parameter. This model captures several important features in the deformation process, namely, shear localization or banding, shear-band propagation and branching, and crack propagation and its velocity. We also assessed the relation between the crack propagation velocity and local heating and the connection between the serrated flow and shear band branching.
Keywords:	Cracks Deformation Ginzburg-Landau theory Metallic glasses
Publisher:	American Physical Society
Journal:	Physical review. B, Condensed matter and materials physics
ISSN:	1098-0121
EISSN:	1550-235X
DOI:	10.1103/PhysRevB.80.104201
Rights:	Physical Review B © 2009 The American Physical Society. The Journal's web site is located at http://prb.aps.org/
Appears in Collections:	Journal/Magazine Article

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