Possible self-Organized criticality in the Portevin-Le Chatelier effect during decomposition of solid solution alloys


Chinh, N.Q., Csanádi, T., Gubicza, J., Lendvai, J. and Langdon, T.G. (2012) Possible self-Organized criticality in the Portevin-Le Chatelier effect during decomposition of solid solution alloys Materials Research Society Communications, 2, pp. 1-4. (doi:10.1557/mrc.2011.25).

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Description/Abstract

Spatial fluctuations of the microstructure suggest possible self-organized criticality in the Portevin–Le Chatelier plastic instability occurring in age-hardenable alloys. The discontinuous yielding found in a supersaturated Al alloy can be characterized by a universal power-law spectrum that is independent of the experimental conditions. The result provides an explanation for the formation of unexpected detrimental strain localizations when samples are severely deformed, giving a framework for studying the simultaneous effects of solute atoms and precipitates in the decomposition of solid solutions.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1557/mrc.2011.25
Subjects:
Organisations: Engineering Mats & Surface Engineerg Gp
ePrint ID: 340529
Date :
Date Event
March 2012Published
Date Deposited: 25 Jun 2012 11:12
Last Modified: 17 Apr 2017 16:54
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/340529

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