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

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.
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https://hal-mines-paristech.archives-ouvertes.fr/hal-00579436
Contributor : Bibliothèque Umr7633 <>
Submitted on : Wednesday, March 23, 2011 - 6:20:42 PM
Last modification on : Tuesday, June 15, 2021 - 4:06:21 PM

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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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