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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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Raabe, D.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (79/79 displayed)
- 2022A mechanically strong and ductile soft magnet with extremely low coercivitycitations
- 2022Hydrogen trapping and embrittlement in high-strength Al alloyscitations
- 2022A sustainable ultra-high strength Fe18Mn3Ti maraging steel through controlled solute segregation and alpha-Mn nanoprecipitationcitations
- 2022The influence of temperature on the strain-hardening behavior of Fe-22/25/28Mn-3Al-3Si TRIP/TWIP steelscitations
- 2022A cracking oxygen story: a new view of stress corrosion cracking in titanium alloyscitations
- 2021Spinodal Decomposition in Nanocrystalline Alloyscitations
- 2021Laser-equipped gas reaction chamber for probing environmentally sensitive materials at near atomic scalecitations
- 2021The Hidden Structure Dependence of the Chemical Life of Dislocationscitations
- 2021The Hidden Structure Dependence of the Chemical Life of Dislocationscitations
- 2021Hydrogen trapping and embrittlement in high-strength Al alloyscitations
- 2021Dopant-segregation to grain boundaries controls electrical conductivity of n-type NbCo(Pt)Sn half-Heusler alloy mediating thermoelectric performancecitations
- 2021The hidden structure dependence of the chemical life of dislocationscitations
- 2021Sustainable steel through hydrogen plasma reduction of iron ore: Process, kinetics, microstructure, chemistrycitations
- 2020Atomic Structure and Chemical Composition of Planar Fault Structures in Co-Base Superalloyscitations
- 2020Chemical instability at chalcogenide surfaces impacts chalcopyrite devices well beyond the surfacecitations
- 2020Segregation-assisted spinodal and transient spinodal phase separation at grain boundariescitations
- 2020Formation of a 2D meta-stable oxide by differential oxidation of AgCu alloyscitations
- 2020On the atomic solute diffusional mechanisms during compressive creep deformation of a Co-Al-W-Ta single crystal superalloycitations
- 2020Probing catalytic surfaces by correlative scanning photoemission electron microscopy and atom probe tomographycitations
- 2020Solute hydrogen and deuterium observed at the near atomic scale in high-strength steelcitations
- 2020Defect Segregation and Its Effect on the Photoelectrochemical Properties of Ti-Doped Hematite Photoanodes for Solar Water Splittingcitations
- 2020Formation of a 2D Meta-stable Oxide by Differential Oxidation of AgCu Alloyscitations
- 2020An efficient and robust approach to determine material parameters of crystal plasticity constitutive laws from macro-scale stress-strain curvescitations
- 2020Multi-component chemo-mechanics based on transport relations for the chemical potentialcitations
- 2020On the assessment of creep damage evolution in nickel-based superalloys through correlative HR-EBSD and cECCI studiescitations
- 2019Characterizing solute hydrogen and hydrides in pure and alloyed titanium at the atomic scalecitations
- 2019DAMASK – The Düsseldorf Advanced Material Simulation Kit for modeling multi-physics crystal plasticity, thermal, and damage phenomena from the single crystal up to the component scalecitations
- 2019DAMASK - The Dusseldorf Advanced Material Simulation Kit for modeling multi-physics crystal plasticity, thermal, and damage phenomena from the single crystal up to the component scale
- 2019Degradation of iridium oxides via oxygen evolution from the lattice: Correlating atomic scale structure with reaction mechanismscitations
- 2018Deformation induced degradation of hot-dip aluminized steelcitations
- 2018Thermophysical and Mechanical Properties of Advanced Single Crystalline Co-base Superalloyscitations
- 2018Phase nucleation through confined spinodal fluctuations at crystal defects evidenced in Fe-Mn alloyscitations
- 2018Phase nucleation through confined spinodal fluctuations at crystal defects evidenced in Fe-Mn alloyscitations
- 2018Multiple slip dislocation patterning in a dislocation-based crystal plasticity finite element methodcitations
- 2018Unexpected cyclic stress-strain response of dual-phase high-entropy alloys induced by partial reversibility of deformationcitations
- 2018On the grain boundary strengthening effect of boron in γ/γ′ Cobalt-base superalloyscitations
- 2018On the diffusive phase transformation mechanism assisted by extended dislocations during creep of a single crystal CoNi-based superalloycitations
- 2018Manipulation of matter by electric and magnetic fields: Toward novel synthesis and processing routes of inorganic materialscitations
- 2018Elemental segregation to antiphase boundaries in a crept CoNi-based single crystal superalloycitations
- 2018Correlative Microscopy—Novel Methods and Their Applications to Explore 3D Chemistry and Structure of Nanoscale Lattice Defects: A Case Study in Superalloyscitations
- 2018Atomic-scale insights into surface species of electrocatalysts in three dimensionscitations
- 2017A novel type of Co–Ti–Cr-base γ/γ<sup>′</sup> superalloys with low mass densitycitations
- 2017Crystal plasticity study on stress and strain partitioning in a measured 3D dual phase steel microstructurecitations
- 2017Multiscale characterization of White Etching Cracks (WEC) in a 100Cr6 bearing from a thrust bearing test rigcitations
- 2017Influence of rhenium on γ′-strengthened cobalt-base superalloyscitations
- 2017Ab initio explanation of disorder and off-stoichiometry in Fe-Mn-Al-C kappa carbidescitations
- 2017Massive nanoprecipitation in an Fe-19Ni-xAl maraging steel triggered by the intrinsic heat treatment during laser metal depositioncitations
- 2017Elasto-viscoplastic phase field modelling of anisotropic cleavage fracturecitations
- 2017Strengthening and strain hardening mechanisms in a precipitation-hardened high-Mn lightweight steelcitations
- 2017A rare-earth free magnesium alloy with improved intrinsic ductilitycitations
- 2017Comparison of maraging steel micro- and nanostructure produced conventionally and by Laser Additive Manufacturingcitations
- 2017Core-shell nanoparticle arrays double the strength of steelcitations
- 2017Combinatorial alloy design by laser additive manufacturingcitations
- 2016Structural and optical properties of (1122) InGaN quantum wells compared to (0001) and (1120)
- 2016Lattice distortions in the FeCoNiCrMn high entropy alloy studied by theory and experimentcitations
- 2016Precipitation reactions in age-hardenable alloys during laser additive manufacturingcitations
- 2016On the mechanism of {332} twinning in metastable $beta$ titanium alloyscitations
- 2016Multi-scale correlative microscopy investigation of both structure and chemistry of deformation twin bundles in Fe-Mn-C steel.citations
- 2016The role of the base element in γ strengthened cobalt/nickel-base superalloyscitations
- 2016Functional adaptation of crustacean exoskeletal elements through structural and compositional diversity: a combined experimental and theoretical studycitations
- 2016Decomposition of the single-phase high-entropy alloy CrMnFeCoNi after prolonged anneals at intermediate temperaturescitations
- 2016Elemental partitioning, lattice misfit and creep behaviour of Cr containing gamma ' strengthened Co base superalloyscitations
- 2016Interstitial atoms enable joint twinning and transformation induced plasticity in strong and ductile high-entropy alloyscitations
- 2015Complex nanotwin substructure of an asymmetric S9 tilt grain boundary in a silicon polycrystalcitations
- 2015Complex Nanotwin Substructure of an Asymmetric Σ 9 Tilt Grain Boundary in a Silicon Polycrystalcitations
- 2015Synergy of atom-probe structural data and quantum-mechanical calculations in a theory-guided design of extreme-stiffness superlattices containing metastable phasescitations
- 2015Synergy of atom-probe structural data and quantum-mechanical calculations in a theory-guided design of extreme-stiffness superlattices containing metastable phasescitations
- 2015Autonomous Repair Mechanism of Creep Damage in Fe-Au and Fe-Au-B-N Alloyscitations
- 2015Grain boundary segregation in multicrystalline silicon: Correlative characterization by EBSD, EBIC, and atom probe tomographycitations
- 2015Rapid theory-guided prototyping of ductile Mg alloys: from binary to multi-component materialscitations
- 2014Structure of rapidly quenched (Cu0.5Zr0.5)(100-x)Ag-x alloys (x=0-40 at.%)citations
- 2013Atomic-scale investigation of epsilon and theta precipitates in bainite in 100Cr6 bearing steel by atom probe tomography and ab initio calculationscitations
- 2011The relation between shear banding, microstructure and mechanical properties in Mg and Mg-Y alloyscitations
- 2010Study of internal stresses in a TWIP steel analyzing transient and permanent softening during reverse shear tests.citations
- 2009Texture prediction from a novel grain cluster-based homogenization schemecitations
- 2008Three-dimensional EBSD study on the relationship between triple junctions and columnar grains in electrodeposited Co-Ni filmscitations
- 2008Production of Steel-Light Metal Compounds with Explosive Metal Cladding
- 2008Microtexture and Chitin/Calcite Orientation Relationship in the Mineralized Exoskeleton of the American Lobstercitations
- 2007Orientation microscopy on nanostructured electrodeposited NiCo-Films
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article
Strengthening and strain hardening mechanisms in a precipitation-hardened high-Mn lightweight steel
Abstract
We report on the strengthening and strain hardening mechanisms in an aged high-Mn lightweight steel (Fe-30.4Mn-8Al-1.2C, wt.%) studied by electron channeling contrast imaging (ECCI), transmission electron microscopy (TEM), atom probe tomography (APT) and correlative TEM/APT. Upon isothermal annealing at 600 °C, nano-sized κ-carbides form, as characterized by TEM and APT. The resultant alloy exhibits high strength and excellent ductility accompanied by a high constant strain hardening rate.In comparison to the as-quenched κ-free state, the precipitation of κ-carbides leads to a significant increase in yield strength (∼480 MPa) without sacrificing much tensile elongation. To study the strengthening and strain hardening behavior of the precipitation-hardened material, deformation microstructures were analyzed at different strain levels. TEM and correlative TEM/APT results show that the κ-carbides are primarily sheared by lattice dislocations, gliding on the typical face-centered-cubic (fcc) slip system {111}<110>, leading to particle dissolution and solute segregation. Ordering strengthening is the predominant strengthening mechanism. As the deformation substructure is characterized by planar slip bands, we quantitatively studied the evolution of the slip band spacing during straining to understand the strain hardening behavior. A good agreement between the calculated flow stresses and the experimental data suggests that dynamic slip band refinement is the main strain hardening mechanism. The influence of κ-carbides on mechanical properties is discussed by comparing the results with that of the same alloy in the as-quenched, κ-free state.