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Gourgues-Lorenzon, Anne-Françoise
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Topics
Publications (66/66 displayed)
- 2023Microstructure – Toughness relationships in 316L stainless steel produced by laser powder bed fusioncitations
- 2022Experimental determination of 3D crack propagation scenario in resistance spot welds of a martensitic stainless steelcitations
- 2022Dependency of recrystallization kinetics on the solidification microstructure of 316 L stainless steel processed by laser powder bed fusion (LPBF)citations
- 2022Effect of the Thermal History on Macrostructure and Microstructure Development in High-Strength Steel Weldscitations
- 2022Influence of grain size on the high-temperature creep behaviour of M5Framatome1 zirconium alloy under vacuumcitations
- 2022Effect of Various Heat Treatments on the Microstructure of 316L Austenitic Stainless Steel Coatings Obtained by Cold Spraycitations
- 2020Deformation and fracture behavior of new strain-transformable titanium alloys: a multi-scale investigationcitations
- 2019Effects of cooling path and resulting microstructure on the impact toughness of a hot stamping martensitic stainless steelcitations
- 2019Contribution to the understanding of brittle fracture conditions of zirconium alloy fuel cladding tubes during LOCA transientcitations
- 2019Hot Deformation and Recrystallization Mechanisms in a Coarse-Grained, Niobium Stabilized Austenitic Stainless Steel (316Nb)citations
- 2018Anisotropic intergranular damage development and fracture in a 14Cr ferritic ODS steel under high-temperature tension and creepcitations
- 2018Identification of ductile to brittle transition temperature by using plane strain specimen in tensile test and correlation with instrumented Charpy impact test: experimental and numerical studycitations
- 2017Austenite grain growth in a 2.25Cr-1Mo vanadium-free steel accounting for Zener pinning and solute drag : experimental study and modelingcitations
- 2017Microstructure, plastic flow and fracture behavior of ferrite-austenite duplex low density medium Mn steelcitations
- 2017Carbide precipitation in 2.25 Cr-1 Mo bainitic steel : effect of heating and isothermal tempering conditionscitations
- 2016Influence of carbon content on the primary solidification mode of high strength steels in resistance spot welding conditionscitations
- 2016Creep flow and fracture behavior of the oxygen-enriched alpha phase in zirconium alloyscitations
- 2016Mechanical behavior at high temperatures of highly oxygen- or hydrogen-enriched α and (Prior-) β phases of zirconium alloyscitations
- 2016Mechanical behavior at high temperatures of highly oxygen- or hydrogen-enriched α and (Prior-) β phases of zirconium alloyscitations
- 2015Fracture behaviour of a Fe–22Mn–0.6C–0.2V austenitic TWIP steelcitations
- 2015Evolution of microstructure during tempering and its influence on the mechanical behavior of 2.25Cr-1Mo bainitic steel
- 2015Fatigue lifetime and tearing resistance of AA2198 Al-Cu-Li alloy friction stir welds: fffect of defectscitations
- 2015Fatigue lifetime and tearing resistance of AA2198 Al-Cu-Li alloy friction stir welds: fffect of defectscitations
- 2014Quantitative investigation of brittle out-of-plane fracture in X70 pipeline steelcitations
- 2014Microstructural characterization of internal welding defects and their effect on the tensile behavior of FSW joints of AA2198 Al-Cu-Li alloycitations
- 2014Microstructural characterization of internal welding defects and their effect on the tensile behavior of FSW joints of AA2198 Al-Cu-Li alloycitations
- 2014Creep behavior at high temperature of the oxygen stabilized zirconium alpha phase of fuel cladding tubes oxidized in loca conditions
- 2013Creep behavior at high temperature of the oxygen stabilized zirconium alpha phase of fuel cladding tubes oxidized in loca conditions
- 2013Effect of welding defects on plastic behaviour and fatigue lifetime of friction stir welded Al-Cu-Li alloy
- 2013Effect of welding defects on plastic behaviour and fatigue lifetime of friction stir welded Al-Cu-Li alloy
- 2013Local approach applied to the fracture toughness of resistance spot welds
- 2011Modelling and experimental study of the tertiary creep stage of Grade 91 steelcitations
- 2011Damage development in low alloy TRIP-aided steels during air-bendingcitations
- 2011Micromechanical modelling of microtexture formation in low alloy steel bainite
- 2011Microstructural influence on high temperature creep flow of Zr–1%NbO alloy in near-α, (α + β), and β temperature ranges in a high vacuum environmentcitations
- 2011Synthesis of few-layered graphene by ion implantation of carbon in nickel thin filmscitations
- 2011Effect of the metallurgical state of austenite on the microtexture properties of the bainitic transformation in a low alloy steelcitations
- 2010Effect of joint line remnant on fatigue lifetime of friction stir welded Al-Cu-Li alloycitations
- 2010Effect of joint line remnant on fatigue lifetime of friction stir welded Al-Cu-Li alloycitations
- 2010Mechanical and microstructural stability of P92 steel under uniaxial tension at high temperaturecitations
- 2010Long term aging effect on the creep strength of the T92 steel
- 2010Micromechanical modelling of microtexture formation in low alloy steel bainite
- 2010Study of the microstructure of the grade 91 steel after more than 100.000h of creep exposure at 600°Ccitations
- 2010Evolution of dislocation density, size of subgrains and MX-type precipitates in a P91 steel during creep and during thermal ageing at 600 °C for more than 100,000 hcitations
- 2010Modelling of necking during creep of grade 91 steel
- 2010Damage mechanisms of ultrahigh strength steels in bending application to a trip steel
- 2010Influence of strain rate on P92 microstructural stability during fatigue tests at high temperaturecitations
- 2010Effect of the metallurgical state of austenite on the microtexture properties of the bainitic transformation in a low alloy steelcitations
- 2010Damage observation in a high-manganese austenitic TWIP steel by synchrotron radiation computed tomographycitations
- 2010Creep rupture of a 9Cr1MoNbV steel at 500 °C : base metal and welded jointcitations
- 2009Mechanical and microstructural stability of P92 steel under uniaxial tension at high temperature
- 2009Mechanical and microstructural stability of P92 steel under uniaxial tension at high temperature
- 2009Study of the microstructure of the grade 91 steel after more than 100 000h of creep exposure at 600°C
- 2009Effect of shear cutting on ductility of a dual phase steelcitations
- 2009FE modelling of bainitic steels using crystal plasticitycitations
- 2008Microstructure evolution in base metal and welded joint of Grade 91 martensitic steels after creep at 500-600°C
- 2008Modelling high temperature creep flow, damage and fracture behaviour of 9Cr1Mo-NbV steel weldmentscitations
- 2007Ensemble averaging stress-strain fields in polycrystalline aggregates with a constrained surface microstructure-Part 2 : Crystal plasticitycitations
- 2006Numerical generation and study of synthetic bainitic microstructures
- 2006Brittle fracture in heat-affected zones of girth welds of modern line pipe steel (X100)
- 2005Modelling high temperature creep flow, damage, and fracture behaviour of 9Cr1Mo-NbV steel weldments
- 2005Creep failure model of a tempered martensitic stainless steel integrating multiple deformation and damage mechanismscitations
- 2005High temperature creep flow and damage properties of 9CrMoNbV steels : base metal and weldmentcitations
- 2005High temperature creep flow and damage properties of the weakest area of 9Cr1Mo-NbV martensitic steel weldmentscitations
- 2004Creep failure model of a 9Cr1Mo-NvV (P91) steel integrating multiple deformation and damage mechanisms
- 2004Experimental determination of creep properties of zirconium alloys together with phase transformationcitations
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article
Anisotropic intergranular damage development and fracture in a 14Cr ferritic ODS steel under high-temperature tension and creep
Abstract
This work addresses damage mechanisms at high temperature of a hot extruded 14Cr oxide dispersion strengthened steel rod, in particular, anisotropy induced by its strong morphological and crystallographic texture. Under uniaxial tension, intergranular damage and unstable fracture increased with test temperature; they appeared much easier along the rod axis than perpendicular to it. Creep fracture of smooth specimens involved crack initiation from the side surfaces and intergranular crack propagation, accompanied by intergranular damage. In order to get rid of fracture surface oxidation by the air environment, a methodology promoting crack nucleation from inside the specimen was built. From tensile and creep tests on notched specimens the fracture initiation location and fracture stability were first mapped as a function of test temperature, maximal stress triaxiality and loading direction. Then, for the first time to the authors' knowledge, interrupted tests on notched tensile and creep specimens, followed by low-temperature fracture allowed revealing fracture surfaces formed at high temperature, but unconnected to the external environment. Intergranular fracture and grain boundary grooving were evidenced there, together with strong chemical reactivity at the surface of internal cavities during damage development at high temperature.