| 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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Prangnell, Philip
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Achieving a columnar-to-equiaxed transition through dendrite twinning in high deposition rate additively manufactured titanium alloyscitations
- 2024In-Situ EBSD Study of Austenitisation in a Wire-Arc Additively Manufactured High-Strength Steelcitations
- 2023Computational study of the geometrical influence of grain topography on short crack propagation in AA7XXX series alloyscitations
- 2023In situ observation of environmentally assisted crack initiation and short crack growth behaviour of new-generation 7xxx series alloys in humid aircitations
- 2023β grain refinement during solidification of Ti-6Al-4V in Wire-Arc Additive Manufacturing (WAAM)citations
- 2023Wire-arc directed energy deposition of Inconel 718: Effects of heat input and build interruptions on mechanical performancecitations
- 2022β Grain refinement by yttrium addition in Ti-6Al-4V Wire-Arc Additive Manufacturingcitations
- 2022Large-scale serial sectioning of environmentally assisted cracks in 7xxx Al alloys using femtosecond Laser-PFIBcitations
- 2022Microstructural characterisation and mechanical properties of Ti-5Al-5V-5Mo-3Cr built by wire and arc additive manufacturecitations
- 2022Optimising large-area crystal orientation mapping of nanoscale β phase in α + β titanium alloys using EBSDcitations
- 2022Optimising large-area crystal orientation mapping of nanoscale β phase in α + β titanium alloys using EBSDcitations
- 2022CALPHAD-informed phase-field model for two-sublattice phases based on chemical potentials: η-phase precipitation in Al-Zn-Mg-Cu alloyscitations
- 2021Co-deformation and dynamic annealing effects on the texture development during alpha–beta processing of a model Zr-Nb alloycitations
- 2021In-Situ Observation of Single Variant α Colony Formation in Ti-6Al-4Vcitations
- 2021The Potential for Grain Refinement of Wire-Arc Additive Manufactured (WAAM) Ti-6Al-4V by ZrN and TiN Inoculationcitations
- 2021Multiscale analysis of grain boundary microstructure in high strength 7xxx Al alloyscitations
- 2021Microstructure transition gradients in titanium dissimilar alloy (Ti-5Al-5V-5Mo-3Cr/Ti-6Al-4V) tailored wire-arc additively manufactured componentscitations
- 2021Effect of deposition strategies on fatigue crack growth behaviour of wire + arc additive manufactured titanium alloy Ti–6Al–4Vcitations
- 2020Process response of Inconel 718 to wire + arc additive manufacturing with cold metal transfercitations
- 2020The effect of processing parameters on rapid-heating β recrystallization in inter-pass deformed Ti-6Al-4V wire-arc additive manufacturingcitations
- 2019Mechanical performance and microstructural characterisation of titanium alloy-alloy composites built by wire-arc additive manufacturecitations
- 2019Automated Image Mapping and Quantification of Microstructure Heterogeneity in Additive Manufactured Ti6Al4Vcitations
- 2017The Effectiveness of Al-Si Coatings for Preventing Interfacial Reaction in Al - Mg Dissimilar Metal Weldingcitations
- 2017Comparison of residual stress distributions in conventional and stationary shoulder high-strength aluminum alloy friction stir weldscitations
- 2016The Effectiveness of Combining Rolling Deformation with Wire-Arc Additive Manufacture on β -Grain Refinement and Texture Modification in Ti-6Al-4Vcitations
- 2016Dissimilar ultrasonic spot welding of aerospace aluminum alloy AA2139 to titanium alloy TiAl6V4citations
- 2016Thermal Modeling of Al-Al and Al-Steel Friction Stir Spot Weldingcitations
- 2016The Effectiveness of Hot Isostatic Pressing for Closing Porosity in Titanium Parts Manufactured by Selective Electron Beam Meltingcitations
- 2016Quantification of the Influence of Increased Pre-Stretching on Microstructure-Strength Relationships in the Al-Cu-Li Alloy AA2195citations
- 2015Coating Design for Controlling Phase IMC Formation in Dissimilar Al-Mg Metal Welding
- 2015Integration of Deformation Processing with Additive Manufacture of Ti-6Al-4V Components for Improved β Grain Structure and Texture
- 2015Automated Multi-Scale Microstructure Heterogeneity Analysis of Selective Electron Beam Melted TiAl6V4 Components:english
- 2014Electrochemical characteristics of a carbon fibre composite and the associated galvanic effects with aluminium alloyscitations
- 2014Electrochemical characteristics of a carbon fibre composite and theassociated galvanic effects with aluminium alloys
- 2013Mechanical and Microstructural Characterization of Percussive Arc Welded Hyper-Pins for Titanium to Composite Metal Joining
- 2013The effect of temperature on the formability of a high strength aluminium automotive alloy
- 2012HAZ development and accelerated post-weld natural ageing in ultrasonic spot welding aluminium 6111-T4 automotive sheetcitations
- 2012Surfi-Sculpt®: The Metallurgical Implication of Electron Beam (EB) Surface Sculpting in Hyper-Joints for Composite to Metal Joining
- 2010Effects of combined Zr and Mn additions on dispersoid formation and recrystallisation behaviour of AA2198 sheetcitations
- 2008Optimisation of Inertia Friction Welding Steel to 6061 Aluminium
- 2000Processing to ultrafine grain structures by conventional routescitations
Places of action
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article
Computational study of the geometrical influence of grain topography on short crack propagation in AA7XXX series alloys
Abstract
Intergranular Environmentally-Assisted Cracking (EAC) has recently been reported to be an issue of concern in<br/>new-generation 7000 series aluminium alloys, such as AA7085, when exposed to humid air. The cracking process<br/>occurs in a highly brittle manner almost exclusively along grain boundaries (GB’s) and has been attributed to<br/>hydrogen embrittlement, probably by GB decohesion within the stress field at the crack tip. Currently, how the<br/>highly heterogeneous grain structures found in these partially recrystallized materials impact the growth behaviour<br/>of microstructurally short cracks is poorly understood. In particular, there is expected to be a high sensitivity to<br/>the grain structure in the transition from initiation to sustained propagation, where the local mechanical driving<br/>force is very sensitive to the crack path. Volume Elements, VE's, with synthetic grain structures have been<br/>generated from real microstructure and texture data, so that the effects of important grain structure variables can<br/>be explored in crystal-plasticity simulations, to understand the extent to which typical grain-structural features<br/>affect the driving force for short-crack growth. Specifically, by considering the effect of different uncrystallised<br/>grain aspect ratios and embedding recrystallised grains in the model, the strain energy release rate has been<br/>calculated as a function of crack path. This has revealed large reductions and fluctuations in the driving force for<br/>short cracks in relation to the local grain structure encountered by the crack tip, which have been estimated by the<br/>model.