D Rittel 2009 J. Phys. D: Appl. Phys. 42 214009 doi:10.1088/0022-3727/42/21/214009
D Rittel
Show affiliationsThis short review addresses the adiabatic shear failure mechanism (adiabatic shear banding—ASB) in metals subjected to high strain-rate deformations. ASB is usually considered as an instability resulting from thermal softening effects. We present a different viewpoint, based on experimental observations in which we identify the stored energy of cold work as the driving force for microstructural rearrangement by dynamic recrystallization (DRX). DRX is an athermal phenomenon that is observed at the early stages of the dynamic deformation process, while thermal effects are insignificant, long before an ASB has formed in the specimen. We tentatively identify DRX as the softening mechanisms whose growth in a localized area will lead to final failure.
81.40.Lm Deformation, plasticity, and creep
Issue 21 (7 November 2009)
Received 4 December 2008, in final form 19 March 2009
Published 22 October 2009
D Rittel 2009 J. Phys. D: Appl. Phys. 42 214009
H Emmerich 2009 J. Phys.: Condens. Matter 21 464103
M Singh et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 065301
Masataka Oko et al 2009 J. Phys.: Conf. Ser. 190 012016
M.N.A. Beurskens et al 2009 Nucl. Fusion 49 125006
X W Zhao et al 2007 Nanotechnology 18 485608
Roger Penrose 2009 J. Phys.: Conf. Ser. 174 012001
Donato Bini et al 2009 Class. Quantum Grav. 26 225006
Jia Zhang et al 2009 Nanotechnology 20 295603
Maki Hata et al 2009 J. Phys.: Conf. Ser. 189 012019