693.932 PEOPLE
| People | Locations | Statistics |
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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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Stark, Andreas
Helmholtz-Zentrum Hereon
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (148/148 displayed)
- 2024On the precipitation and transformation kinetics of precipitationhardening steel X5CrNiCuNb16-4 in a wide range of heating and cooling ratescitations
- 2024On the precipitation and transformation kinetics of precipitation-hardening steel X5CrNiCuNb16-4 in a wide range of heating and cooling ratescitations
- 2024Combination of In Situ Diffraction Experiments and Acoustic Emission Testing to Understand Compression Behavior of Mg-Gd Alloys
- 2024LASER POWDER BED FUSION AND TESTING OF COMPRESSOR WHEELS FROM Gamma-TITANIUM ALUMINIDE TI48-2-2
- 2024Effect of post-annealing on the thermal stability and residual stresses in CVD (Al,Ti)N coatings investigated by in situ synchrotron diffractioncitations
- 2024Characterization of low-temperature creep and stress relaxation of an iron-based shape memory alloy (Fe-SMA) using in-situ synchrotron diffractioncitations
- 2024Extreme high lattice-misfit superalloys with regular cubic L12 particles and excellent creep resistance
- 2024Softening kinetics and mechanism during the annealing of an Al-Si alloy produced by laser powder bed fusion
- 2024Softening kinetics and mechanism during the annealing of an Al-Si alloy produced by laser powder bed fusion
- 2024Investigation of Phase Transformations and Ordering Mechanisms in a Pd–Cu–Ag–Ru Alloycitations
- 2023Kinetics of Martensite Decomposition and Microstructure Stability of Ti-6246 during Rapid Heating to Service Temperaturescitations
- 2023Investigation of the Hot Deformation Behavior in VDM® Alloy 780 by In Situ High-Energy X-Ray Diffractioncitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr$_{0.69}$Ta$_{0.20}$B$_{0.11}$N coating
- 2023Evolution of nano-pores during annealing of technically pure molybdenum sheet produced from different sintered formatscitations
- 2023Influence of the deposition process on the Cr2AlC phase formation during heat treatment of Cr-Al-C thin filmscitations
- 2023Microstructure formation during laser powder bed fusion of Ti-22Al-25Nb with low and high pre-heating temperaturescitations
- 2023Time resolved insights into abnormal grain growth by in situ synchrotron measurementscitations
- 2023Oxidation behavior of a cathodic arc evaporated Cr<sub>0.69</sub>Ta<sub>0.20</sub>B<sub>0.11</sub>N coating
- 2023Influence of the deposition process on the Cr$_2$AlC phase formation during heat treatment of Cr-Al-C thin filmscitations
- 2023Influence of the deposition process and substrate on microstructure, phase composition, and residual stress state on as-deposited Cr-Al-C coatingscitations
- 2023On the stability of Ti(Mn,Al)2 C14 Laves phase in an intermetallic Ti–42Al–5Mn alloycitations
- 2023On the temperature‐induced equilibration of phase distribution and microstructure in a gas‐atomized titanium aluminide powdercitations
- 2023High-Temperature CoNi-Based Superalloys Strengthened by $γ′$-(Ni,Co)$_3$(Cr,Al,Ti,X): The Effect of Refractory Elementscitations
- 2023Tension-compression asymmetry of metastable austenitic stainless steel studied by in-situ high-energy X-ray diffractioncitations
- 2023On the stability of Ti(Mn,Al)$_2$ C14 Laves phase in an intermetallic Ti–42Al–5Mn alloycitations
- 2022How Si affects the microstructural evolution and phase transformations of intermetallic $γ$-TiAl based alloyscitations
- 2022Quench rate sensitivity of age-hardenable Al-Zn-Mg-Cu alloys with respect to the Zn/Mg ratio: An in situ SAXS and HEXRD studycitations
- 2022On the Temperature-Induced Equilibration of Phase Distribution and Microstructure in a Gas-Atomized Titanium Aluminide Powdercitations
- 2022Phase transformation of the Ti-5553 titanium alloy subjected to rapid heatingcitations
- 2022Influence of the Deposition Process and Substrate on Microstructure, Phase Composition, and Residual Stress State on As-Deposited Cr-Al-C Coatingscitations
- 2022How Si affects the microstructural evolution and phase transformations of intermetallic -TiAl based alloyscitations
- 2022The effect of zirconium on the Ti-(42-46 at.%)Al systemcitations
- 2022Phase transformations and phase stability in the Ti–44 at.%Al–(0–7 at.%)Mo systemcitations
- 2022Phase transformations and phase stability in the Ti–44 at.%Al–(0–7 at.%) Mo systemcitations
- 2022Effect of Si on bainitic transformation kinetics in steels explained by carbon partitioning, carbide formation, dislocation densities, and thermodynamic conditionscitations
- 2022Formation of lower bainite in a high carbon steel – an in-situ synchrotron XRD studycitations
- 2022Influence of Tempering on Macro- and Micro-Residual Stresses and Yield Stress of Ferritic-Pearlitic Drawn, Coiled, and Straightened Wirescitations
- 2022Precipitation-based grain boundary design alters Inter- to Trans-granular Fracture in AlCrN Thin Filmscitations
- 2022Quench rate sensitivity of age-hardenable Al-Zn-Mg-Cu alloys with respect to the Zn/Mg ratiocitations
- 2022Oxidation resistance of cathodic arc evaporated Cr$_{0.74}$Ta$_{0.26}$N coatingscitations
- 2021TEM and Synchrotron X-ray Study of the Evolution of Phases Formed During Bonding of IN718/Al/IN718 Couples by TLPBcitations
- 2021TEM and Synchrotron X-ray Study of the Evolution of Phases Formed During Bonding of IN718/Al/IN718 Couples by TLPBcitations
- 2021Thermal Expansion of a Multiphase Intermetallic Ti-Al-Nb-Mo Alloy Studied by High-Energy X-ray Diffractioncitations
- 2021In-situ synchrotron X-ray diffraction during quenching and tempering of SAE 52100 steelcitations
- 2021Response of ferrite, bainite, martensite, and retained austenite to a fire cycle in a fire-resistant steelcitations
- 2021In situ synchrotron X-ray diffraction study of continuous cooling transformations of TIMETAL 54Mcitations
- 2021An In Situ Synchrotron Dilatometry and Atomistic Study of Martensite and Carbide Formation during Partitioning and Temperingcitations
- 2021Structure and Properties of Ti-Al-Ta and Ti-Al-Cr Cladding Layers Fabricated on Titaniumcitations
- 2021In-situ high-energy X-ray diffraction study of austenite decomposition during rapid cooling and isothermal holding in two HSLA steelscitations
- 2021In situ synchrotron X-ray diffraction study of reaction routes in Ti-Al3Ti-based composites: The effect of transition metals on L12 structure stabilizationcitations
- 2021Microstructure evolution induced by the intrinsic heat treatment occurring during wire-arc additive manufacturing of an Al-Mg-Zn-Cu crossover alloycitations
- 2021In Situ High‐Energy Synchrotron X‐Ray Diffraction Reveals the Role of Texture on the Activation of Slip and Twinning during Deformation of Laser Powder Bed Fusion Ti–6Al–4Vcitations
- 2021Breaking the continuity of the Al$_2$O$_3$ oxide scale by additions of Cr in Co-Al-W-based superalloyscitations
- 2021Competition of mechanisms contributing to the texture formation in metastable austenitic steel under compressive loadcitations
- 2021Load Partitioning Between Mg$_{17}$Al$_{12}$ Precipitates and Mg Phase in the AZ91 Alloy Using In-Situ Synchrotron Radiation Diffraction Experimentscitations
- 2021The temperature effect on the plastic deformation of the Mg$_{88}$Zn$_7$Y$_5$ alloy with LPSO phase studied by in-situ synchrotron radiation diffractioncitations
- 2021Interface‐Mediated Twinning‐Induced Plasticity in a Fine Hexagonal Microstructure Generated by Additive Manufacturingcitations
- 2021Partitioning Behavior of Nb, Ta, and Zr in Fully Lamellar $γ/α_2$ Titanium Aluminides and Its Effect on the Lattice Misfit and Creep Behaviorcitations
- 2021Screening for O phase in advanced $γ$–TiAl alloyscitations
- 2021Performance of a Matrix Type High Speed Steel after Deep Cryogenic and Low Tempering Temperature
- 2021Synthesis of bulk reactive Ni–Al composites using high pressure torsioncitations
- 2020Anisotropic Plastic Behavior in an Extruded Long-Period Ordered Structure Mg90Y6.5Ni3.5 (at.%) Alloycitations
- 2020Influence of spinodal decomposition and fcc→w phase transformation on global and local mechanical properties of nanolamellar CVD fcc-Ti1-xAlxN coatingscitations
- 2020Load partition during hot deformation of AlSi12 and AlSi10Cu6Ni2 alloys: a quantitative evaluation of the stiffness of Si networkscitations
- 2020Ultrafine eutectic Ti-Fe-based alloys processed by additive manufacturing – A new candidate for high temperature applicationscitations
- 2020Ultrafine eutectic Ti-Fe-based alloys processed by additive manufacturing – A new candidate for high temperature applicationscitations
- 2020Influence of the Ti/Al/Nb ratio on the structure and properties on intermetallic layers obtained on titanium by non-vacuum electron beam claddingcitations
- 2020Stress relaxation through thermal crack formation in CVD TiCN coatings grown on WC-Co with different Co contentscitations
- 2020Exploring structural changes, manufacturing, joining, and repair of intermetallic γ-TiAl-based alloys: Recent progress enabled by in situ synchrotron X-Ray techniquescitations
- 2020High temperature mechanical behaviour of Mg–6Zn–1Y alloy with 1 wt.% calcium addition: Reinforcing effect due to I-(Mg$_{3}$Zn$_{6}$Y$_{1}$) and Mg$_{6}$Zn$_{3}$Ca$_{2}$ phasescitations
- 2020Novel intermetallic-reinforced near-α Ti alloys manufactured by spark plasma sinteringcitations
- 2020Mapping the geometry of Ti-6Al-4V: From martensite decomposition to localized spheroidization during selective laser meltingcitations
- 2020Characterization of carbides in Q&P steels using a combination of high-resolution methodscitations
- 2020Determination of Temperature-Dependent Elastic Constants of Steel AISI 4140 by Use of In Situ X-ray Dilatometry Experimentscitations
- 2020HRTEM analysis of the high-temperature phases of the newly developed high-temperature Ni-base superalloy VDM 780 Premiumcitations
- 2020In situ observations of continuous cooling transformations in low alloy steelscitations
- 2019High strength nanocrystalline Cu–Co alloys with high tensile ductilitycitations
- 2019Initial plasticity stages in Mg alloys containing Long-Period Stacking Ordered phases using High Resolution Digital Image Correlation (HRDIC) and in-situ synchrotron radiationcitations
- 2019Carbon Redistribution Process in Austempered Ductile Iron (ADI) During Heat Treatment—APT and Synchrotron Diffraction Studycitations
- 2019In situ and atomic-scale investigations of the early stages of γ precipitate growth in a supersaturated intermetallic Ti-44Al-7Mo (at.%) solid solutioncitations
- 2019Deformation-induced phase transformation in a Co-Cr-W-Mo alloy studied by high-energy X-ray diffraction during in-situ compression testscitations
- 2019The transient liquid phase bonding process of a $gamma$-TiAl alloy with brazing solders containing Fe or Nicitations
- 2019In-situ investigation of the oxidation behavior of metastable CVD $Ti_{1-x}Al_{x}N$ using a novel combination of synchrotron radiation XRD and DSCcitations
- 2019Effect of precipitation in the compressive behavior of high strength Mg-Gd-Y-Zn extruded alloycitations
- 2019In situ synchrotron diffraction analysis of Zn additions on the compression properties of NK30citations
- 2019Increase in the Mechanical Strength of Mg-8Gd-3Y-1Zn Alloy Containing Long-Period Stacking Ordered Phases Using Equal Channel Angular Pressing Processingcitations
- 2019Ceramic-Reinforced $gamma$-TiAl-Based Composites: Synthesis, Structure, and Propertiescitations
- 2019In situ analysis of the effect of high heating rates and initial microstructure on the formation and homogeneity of austenitecitations
- 2019Identification of Laves phases in a Zr or Hf containing γ-γ′ Co-base superalloycitations
- 2019Growth and coarsening kinetics of gamma prime precipitates in CMSX-4 under simulated additive manufacturing conditionscitations
- 2019Ferrite recrystallization and austenite formation during annealing of cold-rolled advanced high-strength steels: In situ synchrotron X-ray diffraction and modelingcitations
- 2019Evidence of an orthorhombic transition phase in a Ti-44Al-3Mo (at.%) alloy using in situ synchrotron diffraction and transmission electron microscopycitations
- 2019Stress-controlled decomposition routes in cubic AlCrN films assessed by in-situ high-temperature high-energy grazing incidence transmission X-ray diffractioncitations
- 2019Thermo-mechanical Processing of EZK Alloys in a Synchrotron Radiation Beam
- 2018High strength nanocrystalline Cu–Co alloys with high tensile ductility
- 2018The grain boundary pinning effect of the μ phase in an advanced polycrystalline $gamma /gamma ′$ Co-base superalloycitations
- 2018Creep deformation of Co-Re-Ta-C alloys with varying C content – investigated in-situ by simultaneous synchrotron radiation diffractioncitations
- 2018Deformation Mechanisms in Metastable Austenitic TRIP/TWIP Steels under Compressive Load Studied by in situ Synchrotron Radiation Diffractioncitations
- 2018Phase formation during solidification of Mg-Nd-Zn alloyscitations
- 2018High-strength Mg-6Zn-1Y-1Ca (wt%) alloy containing quasicrystalline I-phase processed by a powder metallurgy routecitations
- 2018Nanostructured Low Carbon Steels Obtained from the Martensitic State via Severe Plastic Deformation, Precipitation, Recovery, and Recrystallizationcitations
- 2018The Effect of a Grain Boundary Pinning $B_2$ Phase on Polycrystalline Co-Based Superalloys with Reduced Densitycitations
- 2018New insights into perovskite-Ti$_{3}$AlC precipitate splitting in a Ti-45Al-5Nb-0.75C alloy by transmission electron microscopycitations
- 2018Synthesis of metal-intermetallic laminate (MIL) composites with modified Al$_3$Ti structure and in situ synchrotron X-ray diffraction analysis of sintering processcitations
- 2018The effect of Zn content on the mechanical properties of Mg-4Nd-xZn Alloys (x = 0, 3, 5 and 8 wt.%)citations
- 2018Strain energy contributions on the bainitic phase transformation in a CrMoV steel during continuous coolingcitations
- 2018Different Cooling Rates and Their Effect on Morphology and Transformation Kinetics of Martensitecitations
- 2018Influence of quasicrystal I-phase on twinning of extruded Mg-Zn-Y alloys under compressioncitations
- 2018Phase Transformations in the Brazing Joint during Transient Liquid Phase Bonding of a γ-TiAl Alloy Studied with In Situ High-Energy X-Ray Diffractioncitations
- 2017Effect of the Zn content on the compression behaviour of Mg5Nd(Zn)citations
- 2017Morphology evolution of $mathrm{Ti_3}$AlC carbide precipitates in high Nb containing TiAl alloyscitations
- 2017Influence of alloy composition and thermal history on carbide precipitation in γ-based TiAl alloyscitations
- 2017Microstructure stability of $gamma$-TiAl produced by selective laser meltingcitations
- 2017Effect of the Zn Content on the Compression Behaviour of $mathrm{Mg_{5}}$Nd(Zn): An In Situ Synchrotron Radiation Diffraction Studycitations
- 2017Microstructure of gas atomised γ-TiAl based alloy powderscitations
- 2017In-situ synchrotron radiation studies of the deformation mechanisms in metastable austenitic TRIP/TWIP steels
- 2016In situ analysis of the forging process of a novel $gamma$-TiAl alloy using synchrotron radiation
- 2016In Situ Characterization Techniques Based on Synchrotron Radiation and Neutrons Applied for the Development of an Engineering Intermetallic Titanium Aluminide Alloycitations
- 2016Formation of an 18R long-period stacking ordered structure in rapidly solidified $mathrm{Mg_{88}Y_{8}Zn_{4}}$ alloycitations
- 2016The Role of Zn on the Elevated Temperature Compression Behavior of Mg5Ndcitations
- 2016Microstructure of Ti-45Al-5Nb and Ti-45Al-10Nb Powderscitations
- 2016Phase Transformation and Residual Stress in a Laser Beam Spot-Welded TiAl-Based Alloycitations
- 2016Microstructural changes in an extruded Mg-Zn-Y alloy reinforced by quasicrystalline I-phase by small additions of calcium, manganese and cerium-rich mischmetalcitations
- 2016In situ synchrotron radiation diffraction investigation of the compression behaviour at 350°C of ZK40 alloys with addition of CaO and Ycitations
- 2016Observation Of An Orthorhombic Phase Formation In An Advanced Powder Processed High Niobium Containing $gamma$-TiAl Alloy
- 2016In situ synchrotron radiation diffraction investigation of the compression behaviour at 350 °C of ZK40 alloys with addition of CaO and Ycitations
- 2016Microstructure Tracking of Ti-6Al-4V by In-Situ Synchrotron Diffraction During Thermomechanical Process in Beta Fieldcitations
- 2016Load partition and microstructural evolution during in situ hot deformation of Ti-6Al-6V-2Sn alloyscitations
- 2015In situ synchrotron radiation diffraction study of the role of Gd, Nd on the elevated temperature compression behavior of ZK40citations
- 2015The effect of tungsten content on the properties of L1(2) -hardened Co-Al-W alloyscitations
- 2015Plasticity analysis by synchrotron radiation in a $Mg_{97}Y_{2}Zn_{1}$ alloy with bimodal grain structure and containing LPSO phasecitations
- 2015Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction
- 2015Investigation of compression behavior of Mg-4Zn-2(Nd, Gd)-0.5Zr at 350°C by in situ synchrotron radiation diffraction
- 2015Phase transformation kinetics during continuous heating of a β-quenched Ti-10V-2Fe-3Al alloycitations
- 2015Nucleation and thermal stability of carbide precipitates in high Nb containing TiAl alloyscitations
- 2014Influence of rare-earth addition on the long-period stacking ordered phase in cast Mg–Y–Zn alloyscitations
- 2014Hot-working behavior of an advanced intermetallic multi-phase $gamma$-TiAl based alloycitations
- 2014Effects of Carbon Content, Annealing Condition and Internal Defects on the nucleation, growth and coarsening of P-type Carbides in High Niobium Containing TiAl Alloys
- 2014Neutron and synchrotron probes in the development of Co–Re-based alloys for next generation gas turbines with an emphasis on the influence of boron additivescitations
- 2014In Situ High Energy X-Ray Diffraction for Investigating the Phase Transformation in Hot Rolled TRIP-Aided Steelscitations
- 2014In-situ small-angle X-ray scattering study of the Perovskite-type carbide precipitation behavior in a carbon-containing intermetallic TiAl alloy using synchrotron radiationcitations
- 2014Effect of carbon addition on solidification behavior, phase evolution and creep properties of an intermetallic $beta$-stabilized $gamma$-TiAl based alloycitations
- 2013Study of the Solidification of AS Alloys Combining in situ Synchrotron Diffraction and Differential Scanning Calorimetrycitations
- 2013The Transformation Mechanism of $beta$-Phase to $omega$-Related Phases in Nb-Rich $gamma$-TiAl Alloys Studied by In Situ High-Energy X-Ray Diffractioncitations
- 2013TiAlNb-alloy with a modulated B19 containing constituent produced by powder metallurgycitations
- 2012In situ study of the hot-working behavior of an advanced intermetallic multi-phase gamma-TiAl based alloy
- 2012In situ forging experiments at HARWI II with advanced TiAl alloys
- 2011Phase fraction evolution in a multi-phase intermetallic gamma-TiAl based alloy
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article
Growth and coarsening kinetics of gamma prime precipitates in CMSX-4 under simulated additive manufacturing conditions
Abstract
Additive manufacturing of superalloys offers new opportunities for alloy design but also poses significant processing difficulties. While the γ′ phase is responsible for the excellent high-temperature resistance of these alloys, it also induces cracking by precipitation hardening during manufacturing. Using small-angle X-ray scattering, we characterized the dynamic precipitation, dissolution, coarsening, and morphological evolution of the γ′ phase in situ during simulated additive manufacturing conditions. For this purpose, a CMSX-4 cylinder was subjected to cyclic heat treatment with heating and quenching rates up to 300 K/s. A specialized setup employing aluminum lenses to focus the X-ray beam was utilized to extend the q-range to small scattering vectors up to 0.035 nm−1. It was shown that the γ′ phase precipitates extremely fast without any measurable undercooling but remains below the equilibrium fraction throughout the process. Coarsening is readily measurable over timespans of only several seconds. A fraction of the γ′ phase that was dissolved during heating reprecipitated by forming new particles instead of growing on already existing precipitates. The findings provide new insight into the dynamic behavior of the γ′ phase during additive manufacturing and may prove valuable in designing new superalloys and processing strategies for additive manufacturing.