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arXiv · 0802.2754

Markov Property of Continuous Dislocation Band Propagation

A. Chatterjee·A. Sarkar·Sourav Bhattacharya·P. Mukherjee·N. Gayathri·P. Barat
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Abstract

Tensile tests were carried out by deforming polycrystalline samples of substitutional Al-2.5%Mg alloy at room temperature for a range of strain rates. The Portevin-Le Chatelier (PLC) effect was observed throughout the strain rate regime. The deformation bands in this region are found to be of type A in nature. From the analysis of the experimental stress time series data we could infer that the dynamics of type A dislocation band propagation is a Markov process.

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A. Chatterjee, A. Sarkar, Sourav Bhattacharya, P. Mukherjee, N. Gayathri, P. Barat. 2008-03-12. Markov Property of Continuous Dislocation Band Propagation. https://doi.org/10.1016/j.physleta.2008.03.013

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