Microstructural characterization of a composite Mo reinforced by 25at.% TiC

Cédat, Denis; Rey, Colette; Clavel, M.; Schmitt, Jean-Hubert; Flem, Marion Le; Allemand, A.

doi:10.1016/j.jnucmat.2008.12.047

Cited by 12 publications

(11 citation statements)

References 7 publications

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“…For a pure molybdenum metal representing the polycrystal matrix, the simulation results delivered by the current polycrystal model were already published in [4]. The compression test simulations were in good agreement with the experiments results.…”

Section: Resultssupporting

confidence: 65%

“…No homogenization heat treatment was performed after HIP processing. The composite microstructure was characterized in a previous paper [4] using different chemical and physical methods. According to Cédat [1], the composite exhibited three phases: Molybdenum (Mo), Titanium Carbide (TiC) and a (Mo,Ti)C phase which is a face-centered cubic (FCC) structure with lattice parameters close to those of TiC (Fig.1).…”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

“…For compression tests performed at high temperature, damage observations cannot be monitored and simulations are needed at grain scale, to get a better understanding of damage initiation.. In a preceding study, Cédat et al [4] simulated the local mechanical fields using a 3D aggregate that was obtained by a random stack of layers of columnar grains. These grains were characterized in terms of crystal orientations that were determined by EBSD.…”

Section: Introductionmentioning

confidence: 99%

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Polycrystal model of the mechanical behavior of a Mo–TiC30 vol.% metal–ceramic composite using a three-dimensional microstructure map obtained by dual beam focused ion beam scanning electron microscopy

et al. 2012

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Section: Resultssupporting

confidence: 65%

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polycrystal model of the mechanical behavior of a Mo–TiC30 vol.% metal–ceramic composite using a three-dimensional microstructure map obtained by dual beam focused ion beam scanning electron microscopy

et al. 2012

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“…It can be seen that there is titanium carbide core, surrounded by (Mo,Ti)C rim in a molybdenum matrix. The chemical and physical characterizations of this composite [9] have shown that the (Mo,Ti)C phase exhibits a composition close to the solid solubility of molybdenum in the titanium carbide: TiC-Mo 10-15at.% . It was assumed that (Mo,Ti)C phase, originating from the Mo and TiC powders, is caused by the diffused phases recrystallisation as the shell.…”

Section: Materials and Experimental Procedures A) Materials Descriptionmentioning

confidence: 84%

Experimental characterization and mechanical behaviour modelling of molybdenum–titanium carbide composite for high temperature applications

Cédat

Libert

Flem

et al. 2009

International Journal of Refractory Metals and Hard Materials

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Simulations of the elastic-viscoplastic behaviour of ceramic-metal composite, over the temperature range 298-993K, are performed on realistic aggregates built up from Electron Back Scatter Diffraction methods. Physical based constitutive models are developed in order to characterize the deformation behaviour of body centered cubic (bcc) metal and face centered cubic (fcc) ceramic under various temperatures. While the ceramic keeps elastic, the viscoplastic behaviour of the metal part is described with a dislocation -based model, implemented in the finite element code ABAQUS, in order to compute local strain and stress fields during compressive tests. It is shown that the adopted constitutive laws are able to give back local complex experimental evidence on weak points of the microstructure.

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“…Fine microstructure observations obtained by transmission electron microscopy (TEM) are detailed elsewhere [24].…”

Section: Microstructurementioning

confidence: 99%

Microstructure and thermal conductivity of Mo–TiC cermets processed by hot isostatic pressing

Flem

Allemand

Urvoy

et al. 2008

Journal of Nuclear Materials

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Microstructural characterization of a composite Mo reinforced by 25at.% TiC

Cited by 12 publications

References 7 publications

Polycrystal model of the mechanical behavior of a Mo–TiC30 vol.% metal–ceramic composite using a three-dimensional microstructure map obtained by dual beam focused ion beam scanning electron microscopy

Polycrystal model of the mechanical behavior of a Mo–TiC30 vol.% metal–ceramic composite using a three-dimensional microstructure map obtained by dual beam focused ion beam scanning electron microscopy

Experimental characterization and mechanical behaviour modelling of molybdenum–titanium carbide composite for high temperature applications

Microstructure and thermal conductivity of Mo–TiC cermets processed by hot isostatic pressing

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