| 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
The role of microstructure and local crystallographic orientation near porosity defects on the high cycle fatigue life of an additive manufactured Ti-6Al-4V
Abstract
Titanium alloys such as Ti-6Al-4V built by most of the additive manufacturing processes are known to contain process induced defects, non-conventional microstructure and strong crystallographic texture; all of which can affect the fatigue strength. In this study we evaluated the effect of crystallographic orientation of α and α lath width around gas pore defects on the high cycle fatigue life of Wire + Arc Additive Manufactured Ti-6Al-4V by means of Electron Back Scattered Diffraction. Here we show that variations in crystallographic orientation of α lath and its width in the vicinity of the crack initiating defect were the main reasons for the considerable scatter in fatigue life. Pyramidal slip systems with high Schmid factor active around the defects resulted in longer fatigue life compared to pyramidal slip with lower Schmid factor. In the absence of pyramidal slip, cracks initiated from active prismatic slip systems. When considering the influence of the microstructure, a higher number of smaller α laths around the defect resulted in longer fatigue life, and vice versa. Overall, the fatigue crack initiation stage was controlled collectively by the complex interaction of porosity characteristics, α lath width and its crystallographic orientation at the crack initiation location.