| 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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Syed, Abdul Khadar
Coventry University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Defect tolerance and fatigue limit prediction for laser powder bed fusion Ti6Al4Vcitations
- 2023Fatigue crack growth behavior in an aluminum alloy Al–Mg–0.3Sc produced by wire based directed energy deposition processcitations
- 2023Strain controlled fatigue behaviour of a wire + arc additive manufactured Ti-6Al-4Vcitations
- 2022Cyclic plasticity and damage mechanisms of Ti-6Al-4V processed by electron beam meltingcitations
- 2021Effect of deposition strategies on fatigue crack growth behaviour of wire+ arc additive manufactured titanium alloy Ti-6Al-4Vcitations
- 2021Influence of deposition strategies on tensile and fatigue properties in a wire + arc additive manufactured Ti-6Al-4Vcitations
- 2021Effect of deposition strategies on fatigue crack growth behaviour of wire + arc additive manufactured titanium alloy Ti–6Al–4Vcitations
- 2020High cycle fatigue and fatigue crack growth rate in additive manufactured titanium alloyscitations
- 2020The role of microstructure and local crystallographic orientation near porosity defects on the high cycle fatigue life of an additive manufactured Ti-6Al-4Vcitations
- 2019Microstructure and mechanical properties of as-built and heat-treated electron beam melted Ti–6Al–4Vcitations
- 2019A critical evaluation of the microstructural gradient along the build direction in electron beam melted Ti-6Al-4V alloycitations
- 2019Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloycitations
- 2019High cycle fatigue and fatigue crack growth rate in additive manufactured titanium alloyscitations
- 2019Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloycitations
- 2019Interrupted fatigue testing with periodic tomography to monitor porosity defects in wire + arc additive manufactured Ti-6Al-4Vcitations
- 2019An experimental study of residual stress and direction-dependence of fatigue crack growth behaviour in as-built and stress-relieved selective-laser-melted Ti6Al4Vcitations
- 2018A comparison of fatigue crack growth performance of two aerospace grade aluminium alloys reinforced with bonded crack retarderscitations
- 2018Experimental and numerical analysis of flexural and impact behaviour of glass/pp sandwich panel for automotive structural applicationscitations
- 2018Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopycitations
- 2017Fatigue performance of bonded crack retarders in the presence of cold worked holes and interference-fit fasteners
- 2017Fatigue performance of bonded crack retarders in the presence of cold worked holes and interference-fit fastenerscitations
- 2014Durability of bonded crack retarders for aerospace
Places of action
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article
A critical evaluation of the microstructural gradient along the build direction in electron beam melted Ti-6Al-4V alloy
Abstract
It is generally recognised that electron beam melted (EBM) Ti-6Al-4V alloys exhibit a microstructural gradient along the build direction, but there have been some inconsistent experimental observations and debate as to the origin and magnitude of this effect. Here we present an unambiguous evaluation of this microstructural gradient and associated mechanical property along the EBM build direction on purpose-built round bar RB samples with build height of 380 mm and rectangular plate RP samples with build height of 120 mm. Columnar prior β grain width was found to increase (from 86±38 to 154±56 μm in RB and from 79±34 to 122±56 μm in RP samples) with the build height and the similar increase was also observed for α lath width (from 0.58±24 to 0.87±33 μm in RB and from 1.50±45 to 1.80±49 μm in RP samples). These observations can be attributed to the thermal gradient in the powder bed that produced a cooling rate gradient along the build height. The measured α lath width variation along the build height followed a lognormal distribution. The graded microstructure resulted in a decrease in micro-hardness which correlated very well with the mean α lath width by following a Hall-Petch relation.