693.932 PEOPLE
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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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Korsunsky, Am
University of Oxford
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (46/46 displayed)
- 2024Extended Caking Method for Strain Analysis of Polycrystalline Diffraction Debye–Scherrer Ringscitations
- 2024Digital Image Correlation for Elastic Strain Evaluation during Focused Ion Beam Ring-Core Milling
- 2024The effects of submerged laser peening, cavitation peening, and shot peening on the improvement of the torsional fatigue strength of powder bed fused Ti6Al4V produced through laser sinteringcitations
- 2024Voxel-based full-field eigenstrain reconstruction of residual stresses in additive manufacturing parts using height digital image correlationcitations
- 2024Hierarchically Porous Carbon Cloth–Polyaniline (CC–PANI) Composite Supercapacitor Electrodes with Enhanced Stabilitycitations
- 2024Tomographic eigenstrain reconstruction for full-field residual stress analysis in large scale additive manufacturing partscitations
- 2023Thermochemical Analysis of Hydrogenation of Pd-Containing Composite Based on TiZrVNbTa High-Entropy Alloycitations
- 2023Hydrogel-Inducing Graphene-Oxide-Derived Core–Shell Fiber Composite for Antibacterial Wound Dressingcitations
- 2023Analysis of stress relaxation in bulk and porous ultra-high molecular weight polyethylene (UHMWPE)citations
- 2023Stress–strain relationships and yielding of metal-organic framework monolithscitations
- 2023On the grain microstructure–mechanical properties relationships in aluminium alloy parts fabricated by laser powder bed fusioncitations
- 2022Combination of metal oxide and polytriarylamine: a design principle to improve the stability of perovskite solar cellscitations
- 2022On the diatomite-based nanostructure-preserving material synthesis for energy applicationscitations
- 2022On the structural peculiarities of self-reinforced composite materials based on UHMWPE fiberscitations
- 2022Comparative multi-modal, multi-scale residual stress evaluation in SLM 3D-printed Al-Si-Mg alloy (RS-300) partscitations
- 2022Improving ultra-fast charging performance and durability of all solid state thin film Li-NMC battery-on-chip systems by in situ TEM lamella analysiscitations
- 2022Fracture toughness of moldable low-temperature carbonized elastomer-based composites filled with shungite and short carbon fiberscitations
- 2022In situ sem study of the micro-mechanical behaviour of 3D-printed aluminium alloycitations
- 2022Stress-assisted thermal diffusion barrier breakdown in ion beam deposited Cu/W nano-multilayers on Si substrate observed by in Situ GISAXS and transmission EDXcitations
- 2022Grain structure engineering of NiTi shape memory alloys by intensive plastic deformationcitations
- 2021The analysis of micro-scale deformation and fracture of carbonized elastomer-based composites by in situ SEMcitations
- 2021Combination of Metal Oxide and Polytriarylamine: A Design Principle to Improve the Stability of Perovskite Solar Cellscitations
- 2021Evolution of stress fields during crack growth and arrest in a brittle-ductile CrN-Cr clamped-cantilever analysed by X-ray nanodiffraction and modellingcitations
- 2020An experimental and numerical analysis of residual stresses in a TIG weldment of a single crystal nickel-base superalloycitations
- 2020Nano-scale residual stress profiling in thin multilayer films with non-equibiaxial stress statecitations
- 2020The use of surface topography for the identification of discontinuous displacements due to crackscitations
- 2020In situ neutron diffraction investigation of texture-dependent Shape Memory Effect in a near equiatomic NiTi alloycitations
- 2020An analysis of fatigue failure mechanisms in an additively manufactured and shot peened IN 718 nickel superalloycitations
- 2020Synchrotron X-ray scattering analysis of nylon-12 crystallisation variation depending on 3D printing conditionscitations
- 2018Nanoscale residual stress depth profiling by Focused Ion Beam milling and eigenstrain analysiscitations
- 2016Strengthening mechanisms in an Al-Fe-Cr-Ti nano-quasicrystalline alloy and compositescitations
- 2015Structure-morphology correlation in electrospun fibers of semicrystalline polymers by simultaneous synchrotron SAXS-WAXDcitations
- 2013Residual stresses in Linear Friction Welding of aluminium alloyscitations
- 2010High energy transmission micro-beam Laue synchrotron X-ray diffractioncitations
- 2010Synchrotron X-ray analysis of microstructure and microdeformation in a recast AA6063 aluminium alloycitations
- 2008Prediction of Fatigue Crack Growth Rates in Ti-6Al-4V Alloy
- 2008Fatigue crack growth rate analysis in a titanium alloy
- 2006Oxford HEXameter: Laboratory high energy X-ray diffractometer for bulk residual stress analysis
- 2006VARIATIONAL EIGENSTRAIN ANALYSIS OF SYNCHROTRON DIFFRACTION MEASUREMENTS OF RESIDUAL ELASTIC STRAIN IN A BENT TITANIUM ALLOY BARcitations
- 2006Residual elastic strain due to laser shock peening: modelling by eigenstrain distributioncitations
- 2006Residual stress analysis in shot peened and fretting fatigued samples by the eigenstrain method
- 2006Residual elastic strain due to laser shock peening: synchrotron diffraction measurementcitations
- 2005Residual stress analysis of welded joints by the variational eigenstrain approachcitations
- 2002The correlation between plastic strain and anisotropy strain in aluminium alloy polycrystalscitations
- 2001The thermal expansion coefficient of mechanically alloyed Al-Cu-Fe quasicrystalline powderscitations
- 2000High energy synchrotron X-ray measurements of 2D residual stress states in metal matrix composites
Places of action
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article
An analysis of fatigue failure mechanisms in an additively manufactured and shot peened IN 718 nickel superalloy
Abstract
The family of additive manufacturing techniques has been attracting significant attention of manufacturers and researchers, due to its unrivalled flexibility to fabricate and repair geometrically complex objects. However, material shaping is not sufficient: wide adoption of additive manufacturing can only occur upon the achievement of satisfactory mechanical performance in terms of structural integrity. The present study exploits a wide range of micro-scale experimental techniques to shed light on fatigue failure mechanisms of Laser Metal Deposition IN718 Ni-base superalloy, and to study the effect of shot peening treatment. Thorough microstructural and fractographic analyses revealed the main deformation mechanism associated with twinning during crack propagation, while crack initiation was found to be promoted by both slip system deformation and twinning around microstructural defects, rather than at sample free-surfaces. It was found that precipitates played a major role in determining the deformation mode. It was discovered that in this case-study, shot-peening residual stresses may have a detrimental effect, in view of the presence of the largest defects within a region where tensile residual stress was present. The results presented here improve understanding of failure mechanisms and thus define future directions of development for manufacture optimisation.