Comptes Rendus
Consistency of the free-volume approach to the homogeneous deformation of metallic glasses
Comptes Rendus. Mécanique, Volume 342 (2014) no. 5, pp. 311-314.

One of the most widely used approaches to model metallic-glasses high-temperature homogeneous deformation is the free-volume theory, developed by Cohen and Turnbull and extended by Spaepen. A simple elastoviscoplastic formulation has been proposed that allows one to determine various parameters of such a model. This approach is applied here to the results obtained by de Hey et al. on a Pd-based metallic glass. In their study, de Hey et al. were able to determine some of the parameters used in the elastoviscoplastic formulation through DSC modeling coupled with mechanical tests, and the consistency of the two viewpoints was assessed.

Received:
Accepted:
Published online:
DOI: 10.1016/j.crme.2014.03.002
Keywords: Metallic glasses, Homogeneous deformation, Free volume model, Mechanical tests, Modeling

Marc Blétry 1; Minh Thanh Thai 1; Yannick Champion 1; Loïc Perrière 1; Patrick Ochin 1

1 ICMPE–CNRS, 2–8, rue Henri-Dunant, 94320 Thiais, France
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Marc Blétry; Minh Thanh Thai; Yannick Champion; Loïc Perrière; Patrick Ochin. Consistency of the free-volume approach to the homogeneous deformation of metallic glasses. Comptes Rendus. Mécanique, Volume 342 (2014) no. 5, pp. 311-314. doi : 10.1016/j.crme.2014.03.002. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2014.03.002/

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