On statistical behaviour of stress drops in Portevin-Le Chatelier effect

被引:1
|
作者
Chatterjee, A. [1 ]
Mukherjee, P. [1 ]
Gayathri, N. [1 ]
Barat, P. [1 ]
Barat, Arnab [2 ]
Sarkar, A. [3 ]
机构
[1] Ctr Variable Energy Cyclotron, Kolkata 700064, India
[2] Indian Stat Inst, Kolkata 700105, India
[3] Bhabha Atom Res Ctr, Mech Met Sect, Bombay 400085, Maharashtra, India
关键词
Plastic deformation; Portevin-Le Chatelier effect; aluminum alloy; steel; Poisson distribution; JERKY FLOW; DYNAMICS; STRAIN;
D O I
10.1007/s12034-011-0153-x
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Portevin-Le Chatelier (PLC) effect is a kind of plastic instability observed in many dilute alloys when deformed at certain ranges of strain rate and temperature. In this paper we present a comprehensive statistical analysis of the observed experimental data obtained during PLC effect and establish that the occurrence probability of the stress drops in the dynamical process responsible for PLC effect is Poisson in nature.
引用
收藏
页码:1113 / 1117
页数:5
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