Possible self-Organized criticality in the Portevin-Le Chatelier effect during decomposition of solid solution alloys
Possible self-Organized criticality in the Portevin-Le Chatelier effect during decomposition of solid solution alloys
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.
1-4
Chinh, N.Q.
75241499-642b-477a-b457-cd08bcab4b9d
Csanádi, T.
e5dc4185-eb9b-443f-876e-66d8f8d16fdc
Gubicza, J.
4b1812c5-5905-46be-8c26-51c25ef82722
Lendvai, J.
0113e83f-651b-4056-9048-6815dd009db1
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
March 2012
Chinh, N.Q.
75241499-642b-477a-b457-cd08bcab4b9d
Csanádi, T.
e5dc4185-eb9b-443f-876e-66d8f8d16fdc
Gubicza, J.
4b1812c5-5905-46be-8c26-51c25ef82722
Lendvai, J.
0113e83f-651b-4056-9048-6815dd009db1
Langdon, T.G.
86e69b4f-e16d-4830-bf8a-5a9c11f0de86
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, .
(doi:10.1557/mrc.2011.25).
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.
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Published date: March 2012
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Engineering Mats & Surface Engineerg Gp
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Local EPrints ID: 340529
URI: http://eprints.soton.ac.uk/id/eprint/340529
PURE UUID: 30c582e3-a6a6-49b8-8a6a-d45082325992
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Date deposited: 25 Jun 2012 11:12
Last modified: 15 Mar 2024 03:13
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Author:
N.Q. Chinh
Author:
T. Csanádi
Author:
J. Gubicza
Author:
J. Lendvai
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