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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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Reed, Rc
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024In-process monitoring and direct simulation of Argon shielding gas and vapour dynamics to control laser-matter interaction in laser powder bed fusion additive manufacturingcitations
- 2024Combined modelling and miniaturised characterisation of high-temperature forging in a nickel-based superalloycitations
- 2023Laser-based additive manufacturing of bulk metallic glasses: recent advances and future perspectives for biomedical applicationscitations
- 2023Oxidation of iron at 600 °C – experiments and simulationscitations
- 2023Physics-based thermal-chemical-fluid-microstructure modelling of in-situ alloying using additive manufacturing: composition-microstructure controlcitations
- 2023Deformation mechanisms rationalisation to design for creep resistance in polycrystalline Ni-based superalloyscitations
- 2023Alloy design for additive manufacturing: early-stage oxidation of nickel-based superalloyscitations
- 2023High-resolution 3D strain and orientation mapping within a grain of a directed energy deposition laser additively manufactured superalloycitations
- 2022Alloys-By-Design: a low-modulus titanium alloy for additively manufactured biomedical implantscitations
- 2022Additive manufacturability of superalloys: Process-induced porosity, cooling rate and metal vapourcitations
- 2022On the solid-state dendritic growth of M7C3 carbide at interfaces in an austenitic systemcitations
- 2021A novel low-modulus titanium alloy for biomedical applications: A comparison between selective laser melting and metal injection mouldingcitations
- 2021Profilometry-based indentation plastometry to obtain stress-strain curves from anisotropic superalloy components made by additive manufacturingcitations
- 2021Characterization of oxidation mechanisms in a family of polycrystalline chromia-forming nickel-base superalloyscitations
- 2020The kinetics of primary alpha plate growth in titanium alloyscitations
- 2020Modelling of the degradation of martensitic stainless steels by the Boudouard reactioncitations
- 2018Grain boundary properties of a nickel-based superalloy: characterisation and modellingcitations
- 2017Nucleation of recrystallisation in castings of single crystal Ni-based superalloys
- 2017On the microtwinning mechanism in a single crystal superalloycitations
- 2016On the composition of microtwins in a single crystal nickel-based superalloycitations
- 2016An Atom Probe Tomography study of site preference and partitioning in a nickel-based superalloycitations
- 2015On the effect of boron on grain boundary character in a new polycrystalline superalloycitations
Places of action
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article
On the effect of boron on grain boundary character in a new polycrystalline superalloy
Abstract
The role of boron in conferring the grain boundary character in a new polycrystalline superalloy suitable for power generation applications is considered. One boron-free and three boron-containing variants are studied using a suite of high resolution characterisation techniques including atom probe tomography (APT), high resolution secondary ion mass spectroscopy (SIMS) and transmission electron microscopy (TEM). The primary effect of boron addition is the suppression of Cr-rich M23C6 carbide and the formation instead of the Cr-rich M5B3 boride. The SIMS analysis indicates that the boride particles are distributed fairly uniformly along the grain boundaries, of length up to 500 nm along the grain boundary. The substantial majority of the boron added resides in the form of these M5B3 borides; some boron segregation is found at the γ′/M5B3 interfaces but interfaces of other forms – such as γ/γ′, γ/M5B3, γ/MC and γ′/MC – show no significant segregation. Creep testing indicates that the optimum boron content in this alloy is 0.05 at.%.