P
Pierre-Olivier Renault
Researcher at University of Poitiers
Publications - 136
Citations - 2239
Pierre-Olivier Renault is an academic researcher from University of Poitiers. The author has contributed to research in topics: Thin film & Tensile testing. The author has an hindex of 28, co-authored 136 publications receiving 2033 citations. Previous affiliations of Pierre-Olivier Renault include Centre national de la recherche scientifique & Institut Pprime.
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A new criterion for elasto-plastic transition in nanomaterials: Application to size and composite effects on Cu–Nb nanocomposite wires
Ludovic Thilly,Steven Van Petegem,Pierre-Olivier Renault,Florence Lecouturier,Vanessa Vidal,Bernd Schmitt,Helena Van Swygenhoven +6 more
TL;DR: In this article, the evolution of elastic strains vs. applied stress suggests the presence of phase-specific elasto-plastic regimes, and a new criterion for the determination of the macroyield stress is given as the stress to which the macroscopic work hardening, θa = −dσa/de0, becomes smaller than one third of the macro-scopic elastic modulus.
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Characterization and residual stresses of WC–Co thermally sprayed coatings
Y.Y. Santana,Pierre-Olivier Renault,Marco Sebastiani,J. G. La Barbera,Jacky Lesage,Edoardo Bemporad,E. Le Bourhis,E.S. Puchi-Cabrera,Mariana Staia +8 more
TL;DR: In this paper, the residual stresses of an as-ground WC-12Co coating of two different thicknesses were determined by means of X-ray diffraction techniques and an incremental hole drilling technique.
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Atomistic calculation of size effects on elastic coefficients in nanometre-sized tungsten layers and wires
TL;DR: In this paper, the elastic properties of tungsten wires and wires are investigated by atomistic simulations and a strong decrease in Young's modulus is observed when the transverse dimensions are reduced below 2-3 nm.
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On lattice plane rotation and crystallographic structure of the expanded austenite in plasma nitrided AISI 316L steel
Claude Templier,Jean Charles Stinville,Patrick Villechaise,Pierre-Olivier Renault,G. Abrasonis,J.P. Rivière,A Martinavicius,M. Drouet +7 more
TL;DR: In this article, the microstructure of the nitrogen enriched layer has been investigated by means of X-ray diffraction (XRD) while the lattice rotations in the nitrided zone were assessed by electron backscattered diffraction.
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Size effect on intragranular elastic constants in thin tungsten films
TL;DR: In this paper, the size effect on the elastic constants of nanocrystalline tungsten has been investigated in the case of W/Cu multilayers with two modulation wavelengths (3.1 and 24.0 nm).