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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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Narayanan, Jinoop Arackal
Teesside University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2024Identifying optimum process strategy to build geometrically stable cylindrical wall structures using laser directed energy deposition based additive manufacturingcitations
- 2024Studies on the Effect of Laser Shock Peening Intensity on the Mechanical Properties of Wire Arc Additive Manufactured SS316Lcitations
- 2024Assessing crack susceptibility in blended copper-stainless steel compositions during laser directed energy deposition-based additive manufacturingcitations
- 2023Laser Directed Energy Deposition-Based Additive Manufacturing of Fe20Cr5.5AlY from Single Tracks to Bulk Structures: Statistical Analysis, Process Optimization, and Characterizationcitations
- 2022Process planning for additive manufacturing of geometries with variable overhang angles using a robotic laser directed energy deposition systemcitations
- 2022Laser Additive Manufacturing of Nickel Superalloys for Aerospace Applications
- 2022Laser-Based Post-processing of Metal Additive Manufactured Components
- 2021Elucidating Corrosion Behaviour of Hastelloy-X Built using Laser Directed Energy Deposition Based Additive Manufacturing in Acidic Environment
- 2021Parametric studies on laser additive manufacturing of copper on stainless steelcitations
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document
Elucidating Corrosion Behaviour of Hastelloy-X Built using Laser Directed Energy Deposition Based Additive Manufacturing in Acidic Environment
Abstract
This paper reports an investigation on the electrochemical corrosion behavior of laser directed energy deposition (LDED)-based additive manufacturing built Hastelloy-X (Hast-X) bulk samples for the first time in various acidic environments (2M HNO3, 2M HCl, and 2M H2SO4). Open-circuit potential results reveal that corrosion activity is more in HCl than the other two media. The corrosion rate (CR) estimated using the Tafel extrapolation method shows that the corrosion rate (CR) is the most in HCl and least in HNO3. Potentiodynamic studies reveal active–passive behavior of Hast-X in all the media and it is seen that the material stays in passivation for a longer potential range in HCl. Further, pitting potential is observed to be comparable in all three media. The cyclic polarization curve shows no loops, which points out the absence of pitting in the samples immersed in any of the media. The estimated CR for Hast-X in all the acidic environments under investigation comes within the acceptable CR for nickel-based alloys (4 mpy). The morphology of the corroded surface is analyzed using stereo microscope and it confirms the absence of pitting in all the three samples. These observations confirm the suitability of LDED built Hast-X components for applications in investigated acidic environments.