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Scaling Behavior of the Portevin-Le Chatelier Effect in an Al-2.5%Mg Alloy

P. Barat·A. Sarkar·P. Mukherjee·S. K. Bandyopadhyay
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Abstract

The scaling behavior of the Portevin-Le Chatelier (PLC) effect was studied by deforming Al-2.5%Mg alloy for a wide range of strain rates. To reveal the exact scaling nature, the time series data of true stress vs. time, obtained during deformation, were analyzed by two complementary methods: the finite variance scaling method and the diffusion entropy analysis. From these analyses we could establish that in the entire span of strain rates, PLC effect showed Levy walk property.

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P. Barat, A. Sarkar, P. Mukherjee, S. K. Bandyopadhyay. 2005-11-04. Scaling Behavior of the Portevin-Le Chatelier Effect in an Al-2.5%Mg Alloy. https://doi.org/10.1103/physrevlett.94.055502

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