Influence of surface pre-deformation on the Portevin-Le Chatelier effect and the related multiscale complexity of plastic flow in an Al-Mg alloy

Autor: Jaber, Hafsa, Beausir, Benoît, Entemeyer, Denis, Lebedkina, Tatiana, Novelli, Marc, Lebyodkin, Mikhail

Publikováno v: Acta Materialia 279 (2024) 120330

The influence of the surface pre-deformation on jerky flow caused by the Portevin-Le Chatelier (PLC) effect was investigated using flat tensile specimens of an Al-Mg alloy. Although jerky flow represents a macroscopic plastic instability, the underly

Externí odkaz: http://arxiv.org/abs/2408.16320

The Portevin-Le Chatelier Effect and Beyond

Autor: Lebyodkin, Mikhail A., Lebedkina, Tatiana A.

The chapter presents the problem of the complexity of plastic flow in alloys, which is manifested by serrated deformation curves and transient plastic strain localizations. This phenomenon uncovers an inherently collective nature of the dynamics of c

Externí odkaz: http://arxiv.org/abs/2104.07018

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The Portevin-Le Chatelier Effect and Beyond

Autor: Lebyodkin, M.A., Lebedkina, Tatiana

Publikováno v: High-Entropy Materials: Theory, Experiments, and Applications
Jamieson Brechtl; Peter K. Liaw. High-Entropy Materials: Theory, Experiments, and Applications, Springer Nature Switzerland AG, In press, 978-3-030-77640-4

International audience; This chapter presents a review of investigations into the complexity of the plastic flow associated with the Portevin-Le Chateliereffect, or jerky flow, in traditional alloys that have basic elements determining the crystal la

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d73e42fd0affba09d0664ee33124680c
https://hal.univ-lorraine.fr/hal-03360977

Complexity and Anisotropy of Plastic Flow of α-Ti Probed by Acoustic Emission and Local Extensometry

Autor: Lebyodkin, Mikhail, Amouzou, Kékéli, Lebedkina, Tatiana, Richeton, Thiebaud, Roth, Amandine

Publikováno v: Materials, Vol 11, Iss 7, p 1061 (2018)
Materials
Materials, MDPI, 2018, 11 (7), pp.1061. ⟨10.3390/ma11071061⟩
Volume 11
Issue 7

Current progress in the prediction of mechanical behavior of solids requires understanding of spatiotemporal complexity of plastic flow caused by self-organization of crystal defects. It may be particularly important in hexagonal materials because of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::6095199d83d53f0c0d1b5b78b7a4474a
http://www.mdpi.com/1996-1944/11/7/1061