Scaling behavior of the Portevin-Le Chatelier effect in an Al-2.5%Mg alloy

被引：20
作者：
Barat, P [1 ]
Sarkar, A [1 ]
Mukherjee, P [1 ]
Bandyopadhyay, SK [1 ]
机构：
[1] Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.94.055502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The scaling behavior of the Portevin-Le Chatelier ( PLC) effect was studied by deforming an 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 versus 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, the PLC effect showed the Levy-walk property.
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页码：1 / 4
页数：4
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