MARTIN Guilhem

Ma thématique de recherche est centrée sur la métallurgie en fabrication additive. Nous caractérisons toutes les étapes clés : de la matière première (poudres, fils) jusqu'aux pièces finales en passant par le suivi in situ du procédé. Nous élaborons des matériaux par le procédé de fusion sur lit de poudre par faisceau d'électrons (EBM: Electron Beam Melting) dont nous sommes équipés au laboratoire SIMaP et nous caractérisons également les matériaux produits via d'autres procédés, notamment les procédés WAAM (Wire Arc Additive Manufacturing) et LBM (Laser Beam Melting).
Nous axons nos recherches sur 3 axes principaux:

• la génération de microstructures PAR fabrication additive, l'idée est ici de tirer partie des spécificités de ces procédés, notamment les conditions de refroidissement très rapides, afin de produire des microstructues inédites et originales.
• le design de microstructures POUR la fabrication additive, le but étant de proposer de nouvelles stratégies pour parvenir à de nouvelles compositions d'alliages ou à des modifications de nuances existantes pour les rendre compatible avec ces procédés émergents.
• la fabrication et la caractérisation de matériaux architecturés notamment des structures dites "lattices", pour lesquels la fabrication additive sur lit de poudre constitue la voie privilégiée d'élaboration en autorisant des formes extrêmement complexes.

2019

• Emeric Plancher, Pauline Gravier, Edouard Chauvet, Jean-Jacques Blandin, Elodie Boller, Luc Salvo, Pierre Lhuissier. Tracking pores durong solidification of a Ni-based superalloy using 4D synchrotron microtomography. Acta Materialia 181 (2019) 1-9
• Paraskevas Kontis, Edouard Chauvet, Zirong Peng, Junyang He, Alisson Kwiatkowski Da Silva, Dierk Raabe, Catherine Tassin, Jean-Jacques Blandin, Rémy Dendievel, Stéphane Abed, Baptiste Gault, Guilhem Martin. Atomic-scale grain boundary engineering to overcome hot cracking in additively manufactured superalloys. Acta Materialia 177 (2019) 209-221
• Théo Persenot, Alexis Burr, Emeric Plancher, jean-Yves Buffière, Rémy Dendievel, Guilhem Martin. Effect of ultrasonic shot peening on the surface defects of thin struts built by Electron Beam Melting - consequences on fatigue resistance. Additive Manufacturing 28 (2019) 821-830
• Emeric Plancher, Lorène Héraud, Pierre Lhuissier, Rémy Dendievel, Damien fabrègue, Jean-Jacques Blandin, Guilhem Martin. Towards behaviour by design: a case study on corrugated architectures. Materials and Design 166 (2019) 107604
• Audrey Lechartier, Nicolas Meyer, Rafael Estevez, Marc Mantel, Guilhem Martin, Guillaume Parry, Muriel Veron, Alexis Deschamps. Deformation beahviour of lean duplex stainless steels with strain idnuced martensitic transformation: Role of deformation mechanisms, alloy chemistry and predeformation. Materialia 000 (2019) 100190
• Charlotte de Formanoir, Guilhem Martin, Frédéric Prima, Sébastien Alain, Thibaut Dessolier, Fan Sun, Solange Vivès, Benjamin Harry, Yves Bréchet, Stéphane Godet. Micromechanical beaviour and thermal stability of a dual phase a+a'titanium alloy produced by additive manufacturing. Acta Materialia 162 (2019) 149-162
• Théo Persenot, Alexis Burr, Guilhem Martin, Jean-Yves Buffière, Rémy Dendievel, Eric maire. Effect of build orientation on the fatigue properties of as-built Electron Beam Melted Ti-6Al-4V. International Journal of Fatigue 118 (2019) 65-76

2018

• Edouard Chauvet, Catherine Tassin, Jean-Jacques Blandin, Rémy Dendievel, Guilhem Martin. Producing Ni-base superalloy single crystal by selective electron beam melting. Scripta Materialia 125 (2018) 15-19
• Théo Persenot, Guilhem Martin, Rémy Dendievel, Jean-Yves Buffière, Eric Maire. Enhancing the tensile properties of EBM as-built thin parts: effect of HIp and chemical etching. Materials Characterization 143 (2018) 82-93
• Edouard Chauvet, Paraskevas Kontis, Eric Jagle, Baptiste Gault, Dierk Raabe,Catherine Tassin, Jean-Jacques Blandin, Rémy Dendievel, Benjamin Vayre, Stéphane Abed, Guilhem Martin. Hot cracking mechanism affecting a non-weldable Ni-based superalloy produced by selective electron beam melting. Acta Materialia 125 (2018) 82-94

2017

• Alexis Deschamps, Guilhem Martin, Rémy Dendievel, Hugo Van Landeghem. Lighter structures for transports: the role of innovation in metallurgy. Compte Rendus  Physique (2017) 445-452
• Audrey Lechartier, Guilhem Martin, Solène Comby, Francine Roussel-Dherbey, Alexis Deschamps, Marc Mantel, Nicolas Meyer, marc Verdier, Muriel Veron. Influence of the martensitic transformation on the microscale plastic strain heterogeneities in a duplex stainless steel. Metallurgical and Materials Transactions A A48 (2017) 20-25
• Charlotte De Formanoir, Alice Brulard, Solange Vivès, Guilhem Martin, Frédéric Prima, Sébatien Michotte, Edouard Rivière, Adrien Dolimont, Stéphane Godet. A strategy to improve the work-hardening of Ti-6Al-4V produced by additive manufacturing. Materials Research Letters 5 (2017) 201-208
• Pierre Lhuissier, Charlotte De Formanoir, Guilhem Martin, Rémy Dendievel, Stéphane Godet. Geometrical control of lattice structures produced by EBM through chemical etching:investigation at the scale of individual struts. Materials and Design 110 (2016) 485-493.
• Sylvain Dancette, Marie Willement, Arnaud Bowet, Guilhem Martin, Laurent Delannay. Automatic processing of an orientation map into a finite elements mesh that confroms to grain boundaries. Modelling and Simulation in Materials Science and Engineering 24 (2016) 055014
• Guilhem Martin, Damien Fabrègue, Florian Mercier, Juan-Antonia Chafino-Aixa, Rémy Dendievel, Jean-Jacques Blandin. Coupling electron beam melting and spark plasma sintering : a new processing route to achieve architectured microstructures. Scripta Materialia 122 (2016) 5-9
• Charlotte de Formaoir, Mathieu Suard, Guilhem Martin, Rémy Dendievel, Stéphane Godet. Improving the mechanical efficiency of electron beam melted lattice strcutures by chemical etching. Additive Manufacturing 11 (2016) 70-76
• Fanny Mas, Guilhem Martin, Pierre Lhuissier, Catherine Tassin, Yves Bréchet, Aude Simar. Heterogeneities in local plastic flow behaviour in a dissimilar weld between a low alloy steel and stainless steel. Materials Science and Engineering A 667 (2016) 56-70

2015

• Mathieu Suard, Guilhem Martin, Rémy Dendievel, Pierre Lhuissier, Jean-Jacques Blandin, Frédéric Vignat, François Villeneuve. Mechanical equivalent diameter of single strut for the stiffness predictions of lattice structures produced by EBM. Additive Manufacturing 8 (2015) 124-131
• Chad Sinclair, Guilhem Martin, Ricardo Lebensohn. Factors contributing to plastic strain amplification in slip dominated of magnesium alloys. Modelling and Simulation in Materials Science and Engineering 23 (2015) 085002
• Guilhem Martin, Chad Sinclair, Warren Poole, Hamid Aziz-Alizimani. Local Plastic Strain Heterogeneities and their impact on the ductility of Mg. JOM 67 (2015) 1761-1773
• Luc Salvo, Guilhem Martin, Mathieu Suard, Ariane Marmottant, Rémy Dendievel, Jean-Jacques Blandin. Processing and structures of solid foams. Compte Rendus Physique 15 (2014) 662-673
• Guilhem Martin, Chad Sinclair, Ricardo Lebensohn. Microscale plastic strain heterogeneities in slip dominated deformation of a magnesium alloy containing rare earth. Materials Science and Engineering A 603 (2014) 37-51

2013

• Guilhem Martin, Chad Sinclair, Jean-Hubert Schmitt. Plastic strain heterogeneities in a Mg-1Zn-0.5Nd alloy. Scripta Materialia 68 (2013) 695-698
• Sampath Kumar Yerra, Guilhem Martin, Muriel Véron, Yves Bréchet, Jean-Denis Mithieux, Laurent Delannay, Thomas Pardoen. Ductile fracture initaited by interface nucleation in two phase elasto-plastic systems. Engineering Fracture Mechanics 102 (2013) 77-100
• Guilhem Martin, Daniel Caldemaison, Michel Bornert, Christophe Pinna, Yves Bréchet, Muriel Veron, Jean-Denis Mithieux, Laurent Delannay, Thomas Pardoen. Characterization of the high temperature strain partioning in a duplex steel. Experimental Mechanics 53 (2013) 205-215