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X. Boulnat
Researcher at University of Lyon
Publications - 29
Citations - 523
X. Boulnat is an academic researcher from University of Lyon. The author has contributed to research in topics: Microstructure & Sintering. The author has an hindex of 9, co-authored 21 publications receiving 359 citations. Previous affiliations of X. Boulnat include Institut national des sciences Appliquées de Lyon.
Papers
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Journal ArticleDOI
Microstructure Evolution in Nano-reinforced Ferritic Steel Processed By Mechanical Alloying and Spark Plasma Sintering
X. Boulnat,Michel Perez,Damien Fabrègue,Thierry Douillard,Marie-Hélène Mathon,Yann de Carlan +5 more
TL;DR: In this paper, the spatial distribution of the stored energy was measured in the bimodal microstructure using the Kernel average misorientation, and the precipitation kinetics of the nano-oxides during consolidation were determined by small-angle neutron scattering.
Journal ArticleDOI
Fabrication and characterization of oxide dispersion strengthened (ODS) 14Cr steels consolidated by means of hot isostatic pressing, hot extrusion and spark plasma sintering
I. Hilger,I. Hilger,X. Boulnat,Jan Hoffmann,Claudio Testani,Frank Bergner,Y. de Carlan,F. Ferraro,A. Ulbricht +8 more
TL;DR: In this article, the feasibility of ODS steel fabrication by means of spark plasma sintering on a semi-industrial scale was demonstrated, where hot extrusion was successfully applied to produce a 2.5 kilogram batch of high-chromium steels.
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In situ characterization of microstructural instabilities: Recovery, recrystallization and abnormal growth in nanoreinforced steel powder
N. Sallez,X. Boulnat,András Borbély,J.-L. Béchade,Damien Fabrègue,Michel Perez,Y. de Carlan,Louis Hennet,Cristian Mocuta,Dominique Thiaudière,Yves Bréchet +10 more
TL;DR: In this paper, an in situ X-ray diffraction experiment was set up to study the microstructural evolution of a nanostructured oxide dispersion-strengthened ferritic steel produced by high-energy ball milling.
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High-Temperature Tensile Properties of Nano-Oxide Dispersion Strengthened Ferritic Steels Produced by Mechanical Alloying and Spark Plasma Sintering
TL;DR: In this paper, very fast heating rates were used to minimize porosity when controlling grain size and precipitation of dispersoids within a compacted material, which induced heterogeneous but fine grain size distribution and high density of nano-oxides.
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Tailoring the microstructure and the mechanical properties of ultrafine grained high strength ferritic steels by powder metallurgy
TL;DR: In this article, three model powder materials (i) atomized, (ii) atomised+milled, and (iii) alloyed with yttria (Y 2 O 3 ) and titanium were consolidated within Spark Plasma Sintering device at 850, 950 and 1050°C.