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| Naji, M. |
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| Petrov, R. H. | Madrid |
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Idrissi, Hosni
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Topics
Publications (63/63 displayed)
- 2024On-chip very low strain rate rheology of amorphous olivine filmscitations
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024Tailoring Mechanical Properties and Shear Band Propagation in ZrCu Metallic Glass Nanolaminates Through Chemical Heterogeneities and Interface Densitycitations
- 2024Strain-and temperature-induced dilatancy in ZrNi thin film metallic glasses with nanoscale structural heterogeneities
- 2024On the role of microstructural defects on precipitation, damage, and healing behavior in a novel Al-0.5Mg2Si alloycitations
- 2024Combining nano-DIC and ACOM TEM to study the ductility enhancement of aluminium films by grain boundary sliding
- 2024Friction Melt Bonding: an innovative process applied to the joining of dissimilar materials in a lap-joint configuration
- 2023Tailoring Mechanical Properties of a-C:H:Cr Coatings
- 2023Tailoring Mechanical Properties of a-C:H:Cr Coatings
- 2023Precipitation, damage and healing behaviour in a new healable Al-0.5Mg2Si alloy
- 2023Strong and ductile thin film metallic glasses through advanced nanoscale design strategies
- 2023Suppressing hydrogen blistering in a magnesium-rich healable laser powder bed fusion aluminum alloy analyzed by in-situ high resolution techniquescitations
- 2023Controlled precipitation in a new Al-Mg-Sc alloy for enhanced corrosion behavior while maintaining the mechanical performancecitations
- 2022Shear banding-activated dynamic recrystallization and phase transformation during quasi-static loading of beta-metastable Ti-12 wt.% Mo alloycitations
- 2022Effect of annealing on mechanical properties and thermal stability of ZrCu/O nanocomposite amorphous films synthetized by pulsed laser depositioncitations
- 2022Effect of annealing on mechanical properties and thermal stability of ZrCu/O nanocomposite amorphous films synthetized by pulsed laser depositioncitations
- 2022On the formation mechanisms of intragranular shear bands in olivine by stress-induced amorphizationcitations
- 2022On the formation mechanisms of intragranular shear bands in olivine by stress-induced amorphizationcitations
- 2022On the formation mechanisms of intragranular shear bands in olivine by stress-induced amorphizationcitations
- 2022Healing Damage in Friction Stir Processed Mg2Si reinforced Al alloy
- 2022Potential TRIP/TWIP coupled effects in equiatomic CrCoNi medium-entropy alloycitations
- 2022Nanoengineered thin film metallic glasses with outstanding mechanical/functional properties
- 2022Design, Friction Stir Processing and characterization of a new healable aluminium alloy
- 2022Electronic and chemical properties of nickel oxide thin films and the intrinsic defects compensation mechanismcitations
- 2022Optimisation of the Thermoelectric Properties of Fe2VAl Thin Films Obtained by Co-sputtering
- 2022Shear banding-activated dynamic recrystallization and phase transformation during quasi-static loading of β-metastable Ti – 12 wt % Mo alloy
- 2022On the formation of antiphase boundaries in Fe4Al13 intermetallics during a high temperature treatmentcitations
- 2021Toward novel stretchable electronics with nanostructured metallic glass films
- 2021Towards ductilization of high strength 7XXX aluminium alloys via microstructural modifications obtained by friction stir processing and heat treatmentscitations
- 2021Novel nanostructured thin film metallic glasses for stretchable electronics
- 2021Deciphering the interactions between single arm dislocation sources and coherent twin boundary in nickel bi-crystalcitations
- 2021Rheology of amorphous olivine thin films characterized by nanoindentationcitations
- 2021Novel class of nanostructured metallic glass films with superior and tunable mechanical propertiescitations
- 2021Novel class of nanostructured metallic glass films with superior and tunable mechanical propertiescitations
- 2020High temperature rise dominated cracking mechanisms in ultra-ductile and tough titanium alloycitations
- 2020Dislocation structures and the role of grain boundaries in cyclically deformed Ni micropillarscitations
- 2020TEM investigation of the role of the polycrystalline-silicon film/substrate interface in high quality radio frequency silicon substratescitations
- 2020Analysis of internal stress build-up during deposition of nanocrystalline Ni thin films using transmission electron microscopycitations
- 2019Atomic-scale viscoplasticity mechanisms revealed in high ductility metallic glass filmscitations
- 2019Atomic-scale viscoplasticity mechanisms revealed in high ductility metallic glass filmscitations
- 2019Enhancement of toughness of Al-to-steel Friction Melt Bonded welds via metallic interlayerscitations
- 2019Graphene effect on mechanical response of copper film
- 2019Damage mechanisms in selective laser melted AlSi10Mg under as built and different post-treatment conditionscitations
- 2019Influence of M23C6 dissolution on the kinetics of ferrite to austenite transformation in Fe-11Cr-0.06C stainless steelcitations
- 2018Effect of hydriding induced defects on the small-scale plasticity mechanisms in nanocrystalline palladium thin filmscitations
- 2017Homogeneous flow and size dependent mechanical behavior in highly ductile Zr65Ni35 metallic glass filmscitations
- 2017Homogeneous flow and size dependent mechanical behavior in highly ductile Zr65Ni35 metallic glass filmscitations
- 2017Mechanical behavior of ultrathin sputter deposited porous amorphous Al2O3 filmscitations
- 2016Dislocation/hydrogen interaction mechanisms in hydrided nanocrystalline palladium filmscitations
- 2016Dislocation and back stress dominated viscoplasticity in freestanding sub-micron Pd filmscitations
- 2016Direct imaging of boron segregation at dislocations in B:diamond heteroepitaxial filmscitations
- 2015Effect of structural defects on the hydriding kinetics of nanocrystalline Pd thin filmscitations
- 2015Dislocation-mediated relaxation in nanograined columnar palladium films revealed by on-chip time-resolved HRTEM testingcitations
- 2014Study of nanoscale deformation mechanisms in nanocrystalline materials using advanced micro/nanomechanical TEM testing
- 2013TEM investigation of the formation mechanism of deformation twins in Fe-Mn-Si-Al TWIP steelscitations
- 2013Effect of deposition rate on the microstructure of electron beam evaporated nanocrystalline Pd thin filmscitations
- 2013High resolution transmission electron microscopy characterization of fcc → 9R transformation in nanocrystalline palladium films due to hydridingcitations
- 2012Texture dependent twin formation in nanocrystalline thin Pd filmscitations
- 2012Investigation of the elementary mechanisms controlling dislocation/twin boundary interactions in fcc metals and alloys: from conventional to advanced TEM characterization
- 2012Multiscale characterization of the work hardening mechanisms in Fe-Mn based TWIP steelscitations
- 2012Advanced TEM investigation of the plasticity mechanisms in nanocrystalline freestanding palladium films with nanoscale twinscitations
- 2011Point Defect Clusters and Dislocations in FIB Irradiated Nanocrystalline Aluminum Films: An Electron Tomography and Aberration-Corrected High-Resolution ADF-STEM Studycitations
- 2011Ultrahigh Strain Hardening in Thin Palladium Films with Nanoscale Twinscitations
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article
Dislocation/hydrogen interaction mechanisms in hydrided nanocrystalline palladium films
Abstract
The nanoscale plasticity mechanisms activated during hydriding cycles in sputtered nanocrystalline Pd films have been investigated ex-situ using advanced transmission electron microscopy techniques. The internal stress developing within the films during hydriding has been monitored in-situ. Results showed that in Pd films hydrided to beta-phase, local plasticity was mainly controlled by dislocation activity in spite of the small grain size. Changes of the grain size distribution and the crystallographic texture have not been observed. In contrast, significant microstructural changes were not observed in Pd films hydrided to alpha-phase. Moreover, the effect of hydrogen loading on the nature and density of dislocations has been investigated using aberration-corrected TEM. Surprisingly, a high density of shear type stacking faults has been observed after dehydriding, indicating a significant effect of hydrogen on the nucleation energy barriers of Shockley partial dislocations. Ab-initio calculations of the effect of hydrogen on the intrinsic stable and unstable stacking fault energies of palladium confirm the experimental observations. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.