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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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Haußmann, Lukas
Friedrich-Alexander-Universität Erlangen-Nürnberg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2022Influence of Nb, Ta and Zr on the Interdiffusion Coefficients and Solid Solution Strengthening of γ-TiAl Single Phase Alloyscitations
- 2022Crack‐Free Welding of a Co‐Base Superalloy with High γ' Precipitate Fractioncitations
- 2021Solid solution strengthening of Mo, Re, Ta and W in Ni during high-temperature creepcitations
- 2021Partitioning Behavior of Nb, Ta, and Zr in Fully Lamellar $γ/α_2$ Titanium Aluminides and Its Effect on the Lattice Misfit and Creep Behaviorcitations
- 2020Local mechanical properties at the dendrite scale of Ni-Based superalloys studied by advanced high temperature indentation creep and micropillar compression testscitations
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article
Crack‐Free Welding of a Co‐Base Superalloy with High γ' Precipitate Fraction
Abstract
<jats:sec><jats:label /><jats:p>Laser cladding of superalloys provides an attractive and cost‐efficient technique for near‐net shape manufacturing, remanufacturing, or individualized repair of components. While the weldability of γ' hardened Ni‐base superalloys is limited, Co‐base superalloys should have a lower susceptibility for cracking during welding due to a lower γ' solvus temperature and less segregation than Ni‐base superalloys. The weldability of the Co‐base superalloy CoWAlloy2Mod and the resulting mechanical properties at 950 °C are investigated. In the as‐welded condition of CoWAlloy2Mod, a fine dendritic microstructure without forming cracks and limited porosity is found. After a three‐step heat treatment, recrystallized, equiaxed grains and a high γ' volume fraction are obtained leading to a very good strength. CoWAlloy2Mod shows a significantly higher strength and creep strength than the conventional weld filler Co‐alloy PWA795.</jats:p></jats:sec>