| 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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Chen, Bo
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2022Cyclic plasticity and damage mechanisms of Ti-6Al-4V processed by electron beam meltingcitations
- 2021Effect of postprocessing thermal treatments on electron- beam powder bed–fused Ti6Al4Vcitations
- 2019A critical evaluation of the microstructural gradient along the build direction in electron beam melted Ti-6Al-4V alloycitations
- 2018Light-induced lattice expansion leads to high-efficiency perovskite solar cellscitations
- 2018Mapping residual strain induced by cold working and by laser shock peening using neutron transmission spectroscopycitations
- 2016On the evaluation of the Bauschinger effect in an austenitic stainless steel - The role of multi-scale residual stressescitations
- 2016On the evaluation of the Bauschinger effect in an austenitic stainless steel—the role of multi-scale residual stressescitations
- 2013ENGIN-X – instrument for materials science and engineering researchcitations
- 2007Preparation of a monolithic capillary column with immobilized α-mannose for affinity chromatography of lectins ; Monolitinių kapiliarinių kolonėlių su imobilizuota α-manoze, skirtų afininei lektinų chromatografijai, sintezėcitations
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.