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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Wu, L.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Behavior of strain stripe networks in barium titanate nanocrystals on crossing its ferroelectric phase transition
- 2023Compressive effects in melting of palladium thin films studied by ultrafast x-ray diffraction
- 2023Structural Explanation of the Dielectric Enhancement of Barium Titanate Nanoparticles Grown under Hydrothermal Conditions
- 2021Deformation-induced martensitic transformation in Co-28Cr-6Mo alloy produced by laser powder bed fusioncitations
- 2021Deformation-induced martensitic transformation in Co-28Cr-6Mo alloy produced by laser powder bed fusion: Comparison surface vs. bulkcitations
- 2020Cu electrodeposition on nanostructured MoS2 and WS2 and implications for HER active site determinationcitations
- 2020Evolution of ferroelastic domain walls during phase transitions in barium titanate nanoparticles
- 2020In-situ synchrotron radiation study of the aging response of Ti-6Al-4V alloy with different starting microstructurescitations
- 2020Laser beam melting of H13 tool steel: From the evolution of microstructure to process simulation
- 2019Antibacterial properties of silver-loaded gelatin sponges prepared with silver diamine fluoride.
- 2019The application of H13-type steel in LBM process: Sensitivity to the powder condition and preheating temperature
- 2019Photochromic materials by postpolymerisation surface modificationcitations
- 2019Thermoresponsive Stiffness Softening of Hierarchically Porous Nanohybrid Membranes Promotes Niches for Mesenchymal Stem Cell Differentiation
- 2018Effect of post-process machining on surface properties of additively manufactured H13 Tool steel,Einfluss der Nachbearbeitung auf Oberflächeneigenschaften von additiv gefertigtem H13-Werkzeugstahlcitations
- 2018Low-temperature plasma-enhanced atomic layer deposition of 2-D MoS 2 :Large area, thickness control and tuneable morphologycitations
- 2017Impact of process conditions on the properties of additively manufactured tool steel H13 processed by LBM
- 2017Austenite reversion kinetics and stability during tempering of a Ti-stabilized supermartensitic stainless steel: Correlative in situ synchrotron x-ray diffraction and dilatometrycitations
- 2017Structural components manufactured by Selective Laser Melting and Investment Casting—Impact of the process route on the damage mechanism under cyclic loadingcitations
- 2016Precipitation reactions in age-hardenable alloys during laser additive manufacturingcitations
- 2015An incremental-secant mean-field homogenization method with second statistical moments for elasto-plastic composite materialscitations
- 2007Polaron melting and ordering as key mechanisms for colossal resistance effects in manganitescitations
- 2007Polaron melting and ordering as key mechanisms for colossal resistance effects in manganites.citations
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article
Austenite reversion kinetics and stability during tempering of a Ti-stabilized supermartensitic stainless steel: Correlative in situ synchrotron x-ray diffraction and dilatometry
Abstract
<p>Correlative physical simulation, synchrotron x-ray diffraction and laser dilatometry were used to characterize the surface and volumetric austenite reversion kinetics and stability in a Ti-stabilized supermartensitic stainless steel. A fast heating rate of 500 °C s<sup>−1</sup> was used to minimize any martensite to austenite reversion related to the heating stage. This allowed the characterization of the austenite reversion kinetics and its corresponding thermal stability on cooling for tempering temperatures between 600 and 700 °C. In all cases, a soaking time of 9000 s and a cooling rate of 5 °C s<sup>−1</sup> were used. The isothermal transformation was divided in two regimes: At and above 625 °C, the kinetics of the transformation was faster and the austenite equilibrium volume fraction was reached. Below 625 °C, the transformation was slower and incomplete. The reverted austenite was stable during cooling after tempering at and below 610 °C, partially stable for temperatures between 625 and 650 °C, and unstable for temperatures between 670 and 700 °C. The austenite Ni content should be higher than 8 wt % in order to effectively stabilize austenite at room temperature. Correlated bulk (dilatometry) and surface (diffraction) analyses showed very good agreement during the isothermal stage. However, martensitic transformation at the sample surface was evidenced at higher temperatures related to the bulk due to the free surface effect. A reversion TTT diagram and the austenite stability curve were constructed from the in situ x-ray diffraction data, providing tools for microstructural and performance optimization of this material.</p>