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Article dans une revue

Portevin-Le Chatelier (PLC) instabilities and slant fracture in C-Mn steel round tensile specimens

Huaidong Wang 1, 2 Clotilde Berdin 1 Matthieu Mazière 3 Samuel Forest 3 Claude Prioul 1 Aurore Parrot 2 Patrick Le Delliou 4
1 MSSMat - Laboratoire de mécanique des sols, structures et matériaux
2 EDF - EDF
3 MAT - Centre des Matériaux
4 EDF R&D - EDF R&D
Abstract : Round tensile specimens of a C-Mn steel were tested at different strain rates and temperatures. Some of the samples tested in the Portevin-Le Chatelier (PLC) domain exhibit slant fracture surfaces. Spherical dimples were evidenced all over the slant fracture surfaces. Numerical simulations showed that stress triaxiality increases around PLC bands and that slant fracture occurs within a PLC band. In a round specimen, this band is plane and inclined, whereas some numerical results predict conical bands.
Keywords : Portevin-Le Chatelier instabilities Fracture surfaces Numerical modeling Band orientation
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Article dans une revue
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00579436
Contributeur : Bibliothèque Umr7633 <>
Soumis le : mercredi 23 mars 2011 - 18:20:42
Dernière modification le : jeudi 24 septembre 2020 - 18:30:07

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ENSMP_MAT | ENSMP | PARISTECH | CNRS | MSSMAT | EDF | INSTITUT-TELECOM | PSL

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Huaidong Wang, Clotilde Berdin, Matthieu Mazière, Samuel Forest, Claude Prioul, et al.. Portevin-Le Chatelier (PLC) instabilities and slant fracture in C-Mn steel round tensile specimens. Scripta Materialia, Elsevier, 2011, 64, pp.430-433. ⟨10.1016/j.scriptamat.2010.11.005⟩. ⟨hal-00579436⟩

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