| 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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Marcos, Gregory
Université de Lorraine
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023A new strategy to prepare alumina-zirconia composite or multilayered coatings by combining cold-spray deposition and plasma electrolytic oxidationcitations
- 2022Evidence of in-depth incorporation of carbon nanotubes in alumina layers grown by plasma electrolytic oxidationcitations
- 2021Inspection of contamination in nitrogen plasmas by monitoring the temporal evolution of the UV bands of NO-γ and of the fourth positive system of N 2citations
- 2020Improving the surface durability of patterned AISI 316LM steels by nitriding treatment for dry friction slidingcitations
- 2019Is “expanded austenite” really a solid solution? Mössbauer observation of an annealed AISI 316L nitrided samplecitations
- 2017Influence of the real dimple shape on the performance of a textured mechanical sealcitations
- 2014Microstructure modifications and associated hardness and corrosion improvements in the AISI 420 martensitic stainless steel treated by high current pulsed electron beam (HCPEB)citations
- 2011Stainless steel patterning by combination of micro-patterning and driven strain produced by plasma assisted nitridingcitations
Places of action
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article
Microstructure modifications and associated hardness and corrosion improvements in the AISI 420 martensitic stainless steel treated by high current pulsed electron beam (HCPEB)
Abstract
The surface of the AISI 420 martensitic stainless steel was subjected to High Current Pulsed Electron Beam (HCPEB) treatment The microstructure in the melted layer consisted of a three phase mixture: (i) fine delta-Fe grains formed via epitaxial growth from the substrate, (ii) larger gamma-grains nucleated from the top surface of the melt and (iii) some needles-like variants issued from the solid state martenitic transformation. Despite this complex multiphase microstructure, the corrosion performance, tested in a sulfuric acid solution, was significantly enhanced by the HCPEB treatment. The increase in corrosion potential and delayed pitting are essentially attributed to an increase in Cr content, rising from 13.3 wt. % in the bulk to about 14 wt. % at the surface, together with a very limited amount of surface craters. This low density of craters did not give rise to significant deep hardening in the sub-surface but the top surface melted layer hardness was increased by more than 50% because of the triggering of the martensitic transformation.