Denis Delagnes

Activités de recherche :

Principalement, mes activités de recherche
concernent la métallurgie physique des aciers à haute résistance et je consacre
la majorité de mon temps de recherche d'une part à la caractérisation
microstructurale multi-échelles des aciers martensitiques revenus et d'autre
part à l'établissement de liens entre la structure et les propriétés mécaniques
usuelles (résistance à la traction, ténacité, résistance à la fatigue).
L'objectif majeur des travaux débutés depuis 15 ans est de définir de nouvelles
nuances à propriétés améliorées pour des applications aéronautiques et outillage
de
mise en forme.



Production scientifique :
69 contributions trouvées

AnnéeTypeAuteurs et titre du documentLiens
2023 COM Sylvain Vallot, Julien Genee, Damien Texier, Denis Delagnes. Numerical modeling and advanced characterization techniques to study the influence of process-inherited local deformation on in-service behavior of an Inconel 718 TMS 2023, San Diego, US [HAL] / [BIB]
2021 ACL Stella Ancey-Rocchi, Vanessa Vidal, Thibault Poulain, Thomas Billot, Denis Bechet, Nicolas Binot, Vincent Huleux, Moukrane Dehmas, Denis Delagnes. Influence of Austenitization Parameters on the Precipitation Sequence and the Chemical Homogenization of Austenite in a High-Performance Fe–Ni–Cr–Al–Ti–Mo Stainless Maraging Steel Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 52(10), p.4623–4635 [HAL] / [BIB] / [DOI]
2021 ACL Charles Romain, Damien Texier, Clara Desgranges, Jonathan Cormier, Stéphane Knittel, Daniel Monceau, Denis Delagnes. Oxidation of Thin Nickel-Based Superalloy Specimens: Kinetics Study and Mechanical Integrity Oxidation of Metals, Springer Verlag, 96(1-2), p.169 - 182 [HAL] / [BIB] / [DOI]
2021 ACL Jia-Hong Liu, N. Binot, Denis Delagnes, M. Jahazi. Influence of the cooling rate below Ms on the martensitic transformation in a low alloy medium-carbon steel Journal of Materials Research and Technology, Elsevier, 12, p.234-242 [HAL] / [BIB] / [DOI]
2020 COM Denis Delagnes, José-Marie Lopez-Cuesta. Panorama des recherches à l’IMT sur les matériaux pour la transition environnementale 12ème Colloque IMT - Matériaux pour la transition environnementale, [en ligne], FR [HAL] / [BIB]
2020 ACL Laurie Despax, Vanessa Vidal, Denis Delagnes, Moukrane Dehmas, Hiroaki Matsumoto, Vincent Velay. Influence of strain rate and temperature on the deformation mechanisms of a fine-grained Ti-6Al-4V alloy Materials Science and Engineering: A, Elsevier, 790, p.1-14/139718 [HAL] / [BIB] / [DOI]
2019 COM Laurie Despax, Vanessa Vidal, Denis Delagnes, Moukrane Dehmas, Hiroaki Matsumoto, Vincent Velay. Mechanical behaviour and microstructural evolution in fine grain Ti-6Al-4V alloy under superplastic conditions Ti 2019 - The 14th world conference on titanium, 321(11011), 7 p., Nantes, FR [HAL] / [BIB] / [DOI]
2019 CO C. Manière, U. Kus, G. Chevallier, Alicia Weibel, Lise Durand, J. Huez, Denis Delagnes, C. Estournes. How to overcome the main challenges of SPS technology: Reproducibility, multi-samples and elaboration of complex shapes p.77-108 [HAL] / [BIB] / [DOI]
2018 COM Laurie Despax, Vanessa Vidal, Denis Delagnes, Moukrane Dehmas, Morgane Geyer, Hiroaki Matsumoto, Vincent Velay. Superplasticity in Fine Grain Ti-6Al-4V Alloy: Mechanical Behavior and Microstructural Evolution ICSAM 2018 - 13th International Conference on Superplasticity in Advanced Materials, 385, p.137-143, St Pertersbourg, RU [HAL] / [BIB] / [DOI]
2018 ACL Aurélien Mondière, Valentine Déneux, Nicolas Binot, Denis Delagnes. Controlling the MC and M2C carbide precipitation in Ferrium® M54® steel to achieve optimum ultimate tensile strength/fracture toughness balance Materials Characterization, Elsevier, 140, p.103 - 112 [HAL] / [BIB] / [DOI]
2016 COM Charline Le Nué, Jean Marc Cloue, Marie Helene Mathon, Sylvain Puech, Denis Béchet, Denis Delagnes. Relationship between the Yield Strength-Fracture Toughness Balance and the Multiscale Microstructure of a Maraging Stainless Steel for Aircraft Applications THERMEC 2016 - 9th Internation Conference on Processing and Manufacturing of Advanced Materials, 879, p. 413 - 418, Graz, AT [HAL] / [BIB] / [DOI]
2016 ACL Charles Manière, Ugras Kus, Lise Durand, Ronan Mainguy, Julitte Huez, Denis Delagnes, Claude Estournès. Identification of the Norton-Green Compaction Model for the Prediction of the Ti-6Al-4V Densification During the Spark Plasma Sintering Process Advanced Engineering Materials, Wiley-VCH Verlag, vol. 18(n° 10), p.1720-1727 [HAL] / [BIB] / [DOI]
2015 COM Ugras Kus, Julitte Huez, Denis Delagnes, Geoffroy Chevallier, Claude Estournes. Relationship Between Microstructure and Tensile Properties of A Ti-6Al-4V Produced by Spark Plasma Sintering TI 2015 - 13th World Conference on Titanium, San Diego, US [HAL] / [BIB] / [DOI]
2014 COM Paul Le Baillif, Pascal Lamesle, Denis Delagnes, Vincent Velay, Christian Dumont, Farhad Rezai-Aria. Influence of the quenching rate and step-wise cooling temperatures on microstructural and tensile properties of PER72 (R) Ni-based superalloy EUROSUPERALLOYS 2014 - 2nd European Symposium on Superalloys and their Applications, 14, art. 21002 - 6 p., Giens, FR [HAL] / [BIB] / [DOI]
2013 ACL Cédric Bellot, Pascal Lamesle, Denis Delagnes. XRD Synchrotron Study of Carbide Precipitation in Martensitic Steels During Tempering Acta Metallurgica Sinica, Springer Verlag, 26(5), p.553-557 [HAL] / [BIB] / [DOI]
2013 ACL Marie-Cécile Robin, Denis Delagnes, Roland E. Logé, Pierre-Olivier Bouchard, Stéphanie da Costa, Mauricio Monteagudo-Galindo, Vincent Velay. Thermo-mechanical fatigue behaviour of welded tubular parts made of ferritic stainless steel International Journal of Fatigue, Elsevier, 54, p.84 - 98 [HAL] / [BIB] / [DOI]
2013 ACL Florence Pettinari-Sturmel, B. Kedjar, Joël Douin, Christophe Gatel, Denis Delagnes, Armand Coujou. TEM study of structural hardening in a new martensitic steel for aeronautic application Materials Science and Engineering: A, Elsevier, 576, p.290-297 [HAL] / [BIB] / [DOI]
2013 ACL Elodie Cabrol, Cédric Bellot, Pascal Lamesle, Denis Delagnes, E. Povoden-Karadeniz. Experimental investigation and thermodynamic modeling of molybdenum and vanadium-containing carbide hardened iron-based alloys Journal of Alloys and Compounds, Elsevier, 556, p.203-209 [HAL] / [BIB] / [DOI]
2012 COM Cédric Bellot, Denis Delagnes, Pascal Lamesle, Denis Béchet. Developing cementite-free martensitic steels : a relevant route to obtain high strength-high toughness steels for tools applications TOOL 2012 -9th International tooling conference, p.241-247, Leoben, AT [HAL] / [BIB]
2012 ACL Cédric Bellot, Denis Delagnes, Pascal Lamesle. Developing cementite-free martensitic steels : a new route to improve the ultimate tensile strength-fracture toughness balance Matériaux & Techniques, EDP Sciences, 100(Hors-Série), p.76-78 [HAL] / [BIB]
2012 ACL Cédric Bellot, Denis Delagnes, Pascal Lamesle. Mécanismes de précipitation dans les aciers martensitiques au carbone : caractérisation par DRX synchrotron et simulation thermocinétique Matériaux & Techniques, EDP Sciences, 100(Hors-Série), p.117-118 [HAL] / [BIB]
2012 ACL Mikael Perrut, Marie-Helene Mathon, Denis Delagnes. Small-angle neutron scattering of multiphase secondary hardening steels Journal of Materials Science, Springer Verlag, 47(4), p.1920-1929 [HAL] / [BIB] / [DOI]
2012 ACL Denis Delagnes, Florence Pettinari-Sturmel, M. H. Mathon, Raphaële Danoix, Frédéric Danoix, Cédric Bellot, Pascal Lamesle, A. Grellier. Cementite-free martensitic steels: A new route to develop high strength/high toughness grades by modifying the conventional precipitation sequence during tempering Acta Materialia, Elsevier, 60(16), p.5877-5888 [HAL] / [BIB] / [DOI]
2011 ACL Frédéric Danoix, Raphaële Danoix, J. Akre, A. Grellier, Denis Delagnes. Atom probe tomography investigation of assisted precipitation of secondary hardening carbides in a medium carbon martensitic steels Journal of Microscopy, Wiley, 244(3), p.305-310 [HAL] / [BIB] / [DOI]
2011 COM Inès Souki, Denis Delagnes, Philippe Lours. Influence of heat treatment on the fracture toughness and crack propagation in 5% Cr martensitic steel ICM 11 - 11th International conference on the mechanical behavior of materials, 10, p.631-637, Como, IT [HAL] / [BIB] / [DOI]
2011 ACL Zhang Zhanping, Denis Delagnes, Gérard Bernhart. Cyclic behaviour and plastic strain memory effect of 55NiCrMoV7 steel under low cycle fatigue Rare Metals, Springer Verlag, 30(1, SI), p.443-446 [HAL] / [BIB] / [DOI]
2010 COM Inès Souki, Denis Delagnes, Philippe Lours. Influence du traitement thermique sur la ténacité et la propagation de fissures pour l'acier à 5% Cr Matériaux 2010, 13 p., Nantes, FR [HAL] / [BIB]
2010 COM Fabio Taina, Marco Pasqualon, Vincent Velay, Denis Delagnes, Philippe Lours. Effect of the LCF loading cycle characteristics on the fatigue life of inconel 718 at high temperature 7th International symposium on superalloy 718 and derivatives, p.893-905, Pittsburgh, US [HAL] / [BIB]
2010 COM Denis Delagnes, Farhad Rezai-Aria, Christophe Levaillant. Influence of testing and tempering temperatures on fatigue behaviour, life and crack initiation mechanisms in a 5%Cr martensitic steel FATIGUE 2010 - 10th International fatigue congress, 2(1), p.427-439, Prague, CZ [HAL] / [BIB] / [DOI]
2010 CO Denis Delagnes. Outillage 4 p. [HAL] / [BIB]
2009 COM Sébastien Mauries, Cédric Bellot, Denis Delagnes, Pascal Lamesle, Ernst Kozeschnik. Precipitation of carbides during the heat treatment of modified AISI H11 steels : comparison between experimental results and thermokinetic modelling 8ITC -8th International Tooling Conference, 2, p.737-750, Aachen, DE [HAL] / [BIB]
2008 ACL Zhanping Zhang, Gérard Bernhart, Denis Delagnes. Cyclic behaviour constitutive modelling of a tempered martensitic steel including ageing effect International Journal of Fatigue, Elsevier, 30(4), p.706-716 [HAL] / [BIB] / [DOI]
2008 ACL Vincent Velay, Denis Delagnes, Gérard Bernhart. Advances in cyclic behavior and lifetime modeling of tempered martensitic steels based on microstructural considerations Key Engineering Materials, Trans Tech Publications, 378-379, p.81-100 [HAL] / [BIB] / [DOI]
2008 ACL Vincent Velay, Gérard Bernhart, Denis Delagnes. Identification and validation of a continuum damage model applied for the lifetime prediction of H11 tool steel International Journal of Microstructure and Materials Properties, Inderscience, 3(2-3), p.282-296 [HAL] / [BIB] / [DOI]
2007 COM Marie Cécile Robin, Pierre-Olivier Bouchard, Roland Loge, Vincent Velay, Denis Delagnes, S. Lesterlin, S. da Costa. Car manifold's fatigue life under thermo mechanical loadings Fatigue Design 2007, 7 p., Senlis, FR [HAL] / [BIB]
2007 ACL Zhan-Ping Zhang, Yu-Hong Qi, Denis Delagnes, Gérard Bernhart. Microstructure variation and hardness diminution during low cycle fatigue of 55NiCrMoV7 steel Journal of Iron and Steel Research International, Springer, 14(6), p.68-73 [HAL] / [BIB] / [DOI]
2007 COM Sébastien Mauries, Pierre Michaud, Denis Delagnes, Pascal Lamesle, Ernst Kozeschnik. Characterization and simulation of carbide precipitation during tempering of low silicon AISI H11 hot-work tool steel The 1st International Symposium on Steel Science -IS3 2007, pp.175-178, Kyoto, JP [HAL] / [BIB]
2007 ACL Z. Zhang, Denis Delagnes, Gérard Bernhart. Ageing effect on cyclic plasticity of a tempered martensitic steel International Journal of Fatigue, Elsevier, 29(2), p.336-346 [HAL] / [BIB] / [DOI]
2007 COM Marie Cécile Robin, Pierre-Olivier Bouchard, Roland Loge, Denis Delagnes, Vincent Velay, S. Lesterlin. Study of the mechanical behavior of welded tubular joints for a better prediction of their life under thermo mechanical fatigue MECAMAT 2007, 4 p., Aussois, FR [HAL] / [BIB]
2007 ACL Sébastien Mauries, Pierre Michaud, Denis Delagnes, Pascal Lamesle, Ernst Kozeschnik. Caractérisation et simulation de la précipitation de carbures au cours du revenu d'un acier martensitique bas silicium AISI H11 Bulletin du cercle d'études des métaux, Cercle d'études des métaux (Saint-Etienne), 17(18), 7 p. [HAL] / [BIB]
2007 ACL Pierre Michaud, Denis Delagnes, Pascal Lamesle, M. H. Mathon, Christophe Levaillant. The effect of the addition of alloying elements on carbide precipitation and mechanical properties in 5% chromium martensitic steels Acta Materialia, Elsevier, 55(14), p.4877-4889 [HAL] / [BIB] / [DOI]
2007 ACL André Grellier, Denis Delagnes, E. Richy, M. Ruzafa. Une approche méthodique, expérimentale et théorique de la composition et des traitements thermiques de la famille des aciers 5%Cr pour accroître les performances des empreintes d'injection d'alliages d'aluminium Bulletin du cercle d'études des métaux, Cercle d'études des métaux (Saint-Etienne), 17(18), 10 p. [HAL] / [BIB]
2007 ACL Zhanping Zhang, Yuhong Qi, Xiaojun Wang, Denis Delagnes, Gérard Bernhart. Relationship between microstructure and tempering time and temperature in 55NiCrMoV7 steel TRANSACTIONS OF MATERIALS AND HEAT TREATMENT, 28(2), 4 p. [HAL] / [BIB]
2006 COM Vincent Velay, Gérard Bernhart, Denis Delagnes. Identification and validation of a continuum damage model applied for lifetime prediction of H11 tool steel TOOL 06 -7th International tooling conference, 1, p.557-564, Torino, IT [HAL] / [BIB]
2006 COM Pierre Michaud, Denis Delagnes, Pascal Lamesle, Marie Hélène Mathon, Christophe Levaillant. Influence of chemical composition on the precipitation of secondary carbides in modified AISI H11 hot-work tool steels TOOL 06 -7th International tooling conference, 1, p.733-740, Torino, IT [HAL] / [BIB]
2006 ACL Denis Delagnes, Pascal Lamesle, Pierre Michaud. Influence des revenus sur la microstructure des aciers à outils pour mise en forme à chaud Traitement Thermique, p.41-47 [HAL] / [BIB]
2005 ACL Vincent Velay, Gérard Bernhart, Denis Delagnes, Luc Penazzi. A continuum damage model applied to high temperature fatigue lifetime prediction of a martensitic tool steel Fatigue and Fracture of Engineering Materials and Structures, Wiley-Blackwell, 28(11), p.1009-1023 [HAL] / [BIB] / [DOI]
2005 COM Vincent Velay, Gérard Bernhart, Denis Delagnes, Luc Penazzi. A continuum damage model applied to fatigue lifetime predicition of a martensitic tool steel ICIT 2005 -5th International Conference on Industrial Tools, p.227-232, Velenje, SI [HAL] / [BIB]
2005 COM Pierre Michaud, Denis Delagnes, Pascal Lamesle, E. Richy, Christophe Levaillant. Effects of alloying elements on carbides precipitation and fatigue properties of modified AISI H11 hot-work tool steels ICIT 2005 -5th International Conference on Industrial Tools, p.165-170, Velenje, SI [HAL] / [BIB]
2005 ACL Denis Delagnes, Pascal Lamesle, M. H. Mathon, N Mebarki, Christophe Levaillant. Influence of silicon content on the precipitation of secondary carbides and fatigue properties of a 5%Cr tempered martensitic steel Materials Science and Engineering: A, Elsevier, 394(1-2), p.435-444 [HAL] / [BIB] / [DOI]
2004 ACL Z Zhang, Denis Delagnes, Gérard Bernhart. Microstructure evolution of hot-work tool steels during tempering and definition of a kinetic law based on hardness measurements Materials Science and Engineering: A, Elsevier, 380(1-2), p.222-230 [HAL] / [BIB] / [DOI]
2004 COM Zhanping Zhang, Yuhong Qi, Xiaojun Wang, Denis Delagnes, Gérard Bernhart. Investigation of low cycle fatigue behavior and fatigue microstructure of 55NiCrMoV7 steel ICASS 2004 -Second international conference on advanced structural steels, p.665-668, Shangai, CN [HAL] / [BIB]
2004 ACL Zhanping Zhang, Denis Delagnes, Gérard Bernhart. The temperature hardness kinetics relations tempering steels TRANSACTIONS OF MATERIALS AND HEAT TREATMENT, 25(1), p.41-45 [HAL] / [BIB]
2004 ACL Zhanping Zhang, Denis Delagnes, Gérard Bernhart. Influence of tempering temperature on cyclic viscoplastic behaviour of 55NiCrMoV7 steel TRANSACTIONS OF MATERIALS AND HEAT TREATMENT, 25(5), p.623-626 [HAL] / [BIB]
2004 ACL N Mebarki, Denis Delagnes, Pascal Lamesle, François Delmas, Christophe Levaillant. Relationship between microstructure and mechanical properties of a 5% Cr tempered martensitic tool steel Materials Science and Engineering: A, Elsevier, 387-389, p.171-175 [HAL] / [BIB] / [DOI]
2004 ACL Zhanping Zhang, Yuhong Qi, Denis Delagnes, Gérard Bernhart. Microstructures and properties of the tempered steel 55NiCrMoV7 HEAT TREATMENT OF METALS, 29(3), p.27-31 [HAL] / [BIB]
2002 COM Zhanping Zhang, Denis Delagnes, Gérard Bernhart. Tempering effect on cyclic behaviour of a martensitic tool steel 6th international tooling conference, 2, p.573-589, Karlstad, SE [HAL] / [BIB]
2002 COM Nadia Mebarki, Pascal Lamesle, Denis Delagnes, Christophe Levaillant, François Delmas. Relationship between microstructure and mechanical properties of a 5% Cr hot work tool steel 6th international tooling conference, 2, p.617-632, Karlstad, SE [HAL] / [BIB]
2002 ACL Z Zhang, Denis Delagnes, Gérard Bernhart. Anisothermal cyclic plasticity modelling of martensitic steels International Journal of Fatigue, Elsevier, 24(6), p.635-648 [HAL] / [BIB] / [DOI]
2000 COM Gérard Bernhart, Bg Choi, Z Zhang, Denis Delagnes. Single specimen methodology for elasto-viscoplastic fatigue model identification of martensitic steels EUROMAT 2000, 2, p.1077-1082, Tours, FR [HAL] / [BIB]
2000 COM Zhanping Zhang, Denis Delagnes, Gérard Bernhart. A continuous thermo-mechanical fatigue model and its application in tempered martensitic tool steel 55NiCrMoV7 3rd International symposium on tribo-fatigue -ISTF 2000, p.240-245, Beinjing, CN [HAL] / [BIB]
1999 COM Zhanping Zhang, Denis Delagnes, Gérard Bernhart. Stress-strain behaviour of tool steels under thermomechanical loadings : experiments and modelling 5th International tooling conference, p.205-213, Leoben, AT [HAL] / [BIB]
1999 COM Denis Delagnes, Farhad Rezai-Aria, Christophe Levaillant, André Grellier. Influence of temperature and initial hardness on fatigue behaviour and life of a 5% cr hot work tool steel 5th International conference on tooling, p.195-204, Leoben, AT [HAL] / [BIB]
1999 ACL Gérard Bernhart, G Moulinier, Olivier Brucelle, Denis Delagnes. High temperature low cycle fatigue behaviour of a martensitic forging tool steel International Journal of Fatigue, Elsevier, 21(2), p.179-186 [HAL] / [BIB] / [DOI]
1999 ACL Denis Delagnes, Farhad Rezai-Aria, Christophe Levaillant, André Grellier. Comportement et durée de vie en fatigue isotherme de l'acier X 38 CrMoV 5 Matériaux & Techniques, EDP Sciences, p. 39-50 [HAL] / [BIB] / [DOI]
1998 ACL Denis Delagnes, Farhad Rezai-Aria, Christophe Levaillant, André Grellier. Comportement et durées de vie en fatigue isotherme de l'acier Z 38 CDV 5 Bulletin du cercle d'études des métaux, Cercle d'études des métaux (Saint-Etienne), 16(17), p.11.1-11.10 [HAL] / [BIB]
1997 COM Florent Decultieux, Michel Bellet, Alain Lefloc'H, Denis Delagnes, Christophe Levaillant. Development of stress during the solidification of an aluminium alloy : experimental and numerical assessment of influence of elasticity parameters during solidification SP 97 -4th Decennial international conference on solidification processing, p.195-197, Sheffield, GB [HAL] / [BIB]
1996 COM Houssam Samrout, Rochdi El Abdi, Christophe Levaillant, Denis Delagnes, Béatrice Tico. Un modèle viscoplastique anisotherme d'un acier de disques de frein pour matériel ferroviaire STRUCOME 96, 12 p., Paris, FR [HAL] / [BIB]
1996 COM Houssam Samrout, Rochdi El Abdi, Christophe Levaillant, Denis Delagnes. Optimisation des paramètres de loi de comportement d'un acier de disque de frein pour matériel ferroviaire IDMME'96 -Integrated design and manufacturing in mechanical engineering = 1ère Conférence internationale sur la conception et la fabrication intégrées en mécanique, 2, p.937-946, Nantes, FR [HAL] / [BIB]