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Metals 2016, 6(3), 48; doi:10.3390/met6030048

On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect

Al Imam Mohammad Ibn Saud Islamic University (IMSIU), Othman Ibn Affan Street, Riyadh 11432, Saudi Arabia
Laboratoire de Mécanique de Sousse (LMS), ENISo, Technopole de Sousse, University of Sousse, BP 254 Erriadh 4023, Tunisia
SIMaP-LTPCM, Institut National Polytechnique de Grenoble, 38402 Saint Martin d’Heres, France
This author deceased on 24 November 2015
Author to whom correspondence should be addressed.
Academic Editor: Hugo F. Lopez
Received: 4 December 2015 / Accepted: 25 February 2016 / Published: 29 February 2016
View Full-Text   |   Download PDF [814 KB, uploaded 29 February 2016]   |  


A constitutive model for serrated flow together with a finite element (FE) analysis was developed to simulate discontinuous yielding behavior of metallic glasses, commonly known as serrated flow inhomogeneous deformation. The constructed model is based on transient behavior resulting from the time dependence of the flow defect concentration in the shear bands. The computed results of stress-strain curves were consistent with the experimental data. The main features of the serrated flow effect have also been exhibited by the model. View Full-Text
Keywords: metallic glasses; serrated flow; flow defects; shear bands metallic glasses; serrated flow; flow defects; shear bands

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Alrasheedi, N.H.; Yousfi, M.A.; Hajlaoui, K.; Mahfoudh, B.J.; Tourki, Z.; Yavari, A.R. On the Modelling of the Transient Flow Behavior of Metallic Glasses: Analogy with Portevin-Le Chatelier Effect. Metals 2016, 6, 48.

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