Search Results - "Mompiou, F"

Quantitative grain growth and rotation probed by in-situ TEM straining and orientation mapping in small grained Al thin films by Mompiou, F., Legros, M.

“…Despite abundant literature claims of mechanisms involving grain boundaries (GB) mechanisms in the deformation of nanocrystalline metals and alloys, few are…”
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Disconnections kinks and competing modes in shear-coupled grain boundary migration by Combe, Nicolas, Mompiou, Frédéric, Legros, Marc

“…The response of small-grained metals to mechanical stress is investigated by a theoretical study of the elementary mechanisms occurring during the…”
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Elementary mechanisms of shear-coupled grain boundary migration by Rajabzadeh, A, Mompiou, F, Legros, M, Combe, N

“…A detailed theoretical study of the elementary mechanisms occurring during the shear-coupled grain boundary (GB) migration at low temperature is performed…”
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Grain boundary shear–migration coupling—I. In situ TEM straining experiments in Al polycrystals by Mompiou, F., Caillard, D., Legros, M.

“…Grain boundary (GB) migration was dynamically observed and characterized by means of in situ transmission electron microscopy straining experiments at moderate…”
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Grain-boundary shear-migration coupling. II. Geometrical model for general boundaries by Caillard, D., Mompiou, F., Legros, M.

“…Grain boundary-mediated plasticity is now a well-established phenomenon, especially in fine-grained or nanocrystalline metals. It has been described in several…”
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The role of disconnections in deformation-coupled grain boundary migration by Rajabzadeh, A., Mompiou, F., Lartigue-Korinek, S., Combe, N., Legros, M., Molodov, D.A.

“…Grain boundary (GB) migration under stress has been recognized in recent years as an important plastic deformation mechanism especially in small-grained…”
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Extrinsic mechanical size effects in thin ZrNi metallic glass films by Ghidelli, M., Gravier, S., Blandin, J.-J., Djemia, P., Mompiou, F., Abadias, G., Raskin, J.-P., Pardoen, T.

“…Mechanical size effects in ZrxNi100−x thin metallic glass films are investigated for thicknesses from 200 to 900nm. Local order, elastic properties and rate…”
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Inter- and intragranular plasticity mechanisms in ultrafine-grained Al thin films: An in situ TEM study by Mompiou, F., Legros, M., Boé, A., Coulombier, M., Raskin, J.-P., Pardoen, T.

“…The nature of the elementary deformation mechanisms in small-grained metals has been the subject of numerous recent studies. In the submicron range, mechanisms…”
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Evidence of grain boundary dislocation step motion associated to shear-coupled grain boundary migration by Rajabzadeh, A., Legros, M., Combe, N., Mompiou, F., Molodov, D.A.

“…The present work reports dynamical observations of the grain boundary (GB)-mediated plasticity during in situ transmission electron microscopy straining…”
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Direct observation and quantification of grain boundary shear-migration coupling in polycrystalline Al by Mompiou, F., Legros, M., Caillard, D.

“…Rapid grain boundary motion under stress has been observed during in-situ TEM straining experiment in polycrystalline Al at moderate temperatures…”
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A direct comparison between in-situ transmission electron microscopy observations and Dislocation Dynamics simulations of interaction between dislocation and irradiation induced loop in a zirconium alloy by Drouet, J., Dupuy, L., Onimus, F., Mompiou, F.

“…Dislocation Dynamics simulations of a dislocation-loop interaction are compared to experimental observations performed during an in-situ straining experiment…”
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Study of the deformation mechanisms in a Fe–14% Cr ODS alloy by Praud, M., Mompiou, F., Malaplate, J., Caillard, D., Garnier, J., Steckmeyer, A., Fournier, B.

“…In this present work, the plasticity of a rod bar of a 14% Cr ferritic ODS steel is examined through a multiscale approach based on both macroscopic and…”
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SMIG model: A new geometrical model to quantify grain boundary-based plasticity by Mompiou, F., Legros, M., Caillard, D.

“…Stress-assisted grain boundary migration is a mechanism that has proven active in polycrystals but that relies on a limited number of models. Those models do…”
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Microstructure evolution of recrystallized Zircaloy-4 under charged particles irradiation by Gaumé, M., Onimus, F., Dupuy, L., Tissot, O., Bachelet, C., Mompiou, F.

“…Recrystallized zirconium alloys are used as nuclear fuel cladding tubes of Pressurized Water Reactors. During operation, these alloys are submitted to fast…”
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In situ TEM study of twin boundary migration in sub-micron Be fibers by Mompiou, F., Legros, M., Ensslen, C., Kraft, O.

“…Deformation twinning in hexagonal crystals is often considered as a way to palliate lack of independent slip systems. This mechanism might be either…”
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Characterization of bulk bimodal polycrystalline nickel deformed by direct impact loadings by Dirras, G., Tingaud, D., Csiszár, G., Gubicza, J., Couque, H., Mompiou, F.

“…Spark plasma sintering of a blend of powders with nanometer and micrometer sized particles yielded to a composite-like nickel microstructure consisting of…”
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Discerning size effect strengthening in ultrafine-grained Mg thin films by Sharon, J.A., Zhang, Y., Mompiou, F., Legros, M., Hemker, K.J.

“…Microtensile experiments have been performed to elucidate the mechanical response of ultrafine-grained Mg thin films. Strengths of 160MPa and elongations up to…”
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Creep behavior of ODS materials: A study of dislocations/precipitates interactions by Malaplate, J., Mompiou, F., Béchade, J.-L., Van Den Berghe, T., Ratti, M.

“…Creep experiments performed at 650°C and 250MPa on MA957 and CEA-developed 18%Cr ferritic Oxide Dispersion Strengthened (ODS) steels emphasize the particular…”
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In situ TEM observation of grain annihilation in tricrystalline aluminum films by Mompiou, F., Legros, M., Radetic, T., Dahmen, U., Gianola, D.S., Hemker, K.J.

“…Capillarity-driven grain boundary (GB) motion in Al tricrystalline thin films has been investigated by in situ transmission electron microscopy at intermediate…”
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Dislocation-climb plasticity: Modelling and comparison with the mechanical properties of icosahedral AlPdMn by Mompiou, F., Caillard, D.

“…A model of plasticity controlled by the pure climb motion of dislocations is proposed and compared with the mechanical properties of icosahedral AlPdMn. This…”
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