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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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Isotahdon, Elisa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Penetration of corrosive species into copper exposed to simulated O2-free groundwater by time-of-flight secondary ion mass spectrometry (ToF-SIMS)citations
- 2023Characterization of surface films that develop on pre-oxidized copper in anoxic simulated groundwater with sulphidecitations
- 2023Reply to comment on “Penetration of corrosive species into copper exposed to simulated O 2 -free groundwater by time-of-flight secondary ion mass spectrometry (ToF-SIMS)”citations
- 2023Pitting corrosion on highly alloyed stainless steels in dilute sulphuric acid containing sodium chloridecitations
- 2021Corrosion of copper in sulphide containing environment: the role and properties of sulphide films – Annual report 2020
- 2021Corrosion-induced microstructure degradation of copper in sulfide-containing simulated anoxic groundwater studied by synchrotron high-energy X-ray diffraction and ab-initio density functional theory calculationcitations
- 2020Tribocorrosion behaviour of thermally sprayed cermet coatings in paper machine environmentcitations
- 2019Tribocorrosion behaviour of two low-alloy steel grades in simulated waste solutioncitations
- 2019Tribocorrosion behaviour of non-passivating alloys
- 2019Behaviour of leaded tin bronze in simulated seawater in the absence and presence of tribological contact with alumina counterbodycitations
- 2019Tribocorrosion behaviour of non-passivating alloys:case examples and approaches to wear-corrosion synergy determination
- 2018Tribocorrosion behaviour of aluminium bronze in 3.5 wt.% NaCl solutioncitations
- 2017High temperature corrosion of gradient tubes for high temperature application
- 2017Corrosion Losses, Mechanisms and Protection Strategies for Sintered Nd-Fe-B Magnets
- 2016Development of Magnetic Losses During Accelerated Corrosion Tests for Nd-Fe-B Magnets Used in Permanent Magnet Generatorscitations
- 2015Enhanced photoactive and photoelectrochemical properties of TiO2 sol-gel coated steel by the application of SiO2 intermediate layercitations
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article
Development of Magnetic Losses During Accelerated Corrosion Tests for Nd-Fe-B Magnets Used in Permanent Magnet Generators
Abstract
<p>Sintered Nd-Fe-B magnets are critical components in permanent magnet wind generators. They are the strongest permanent magnets available and thus enable the construction of light and effective devices, but their stability in corrosive environments is limited. In this work, the formation of corrosion losses in two types of Nd-Fe-B alloys was studied. Magnets were in a magnetized state during the corrosion test, enabling monitoring of the development of losses in magnetic flux along with those in weight. Parallel flux and weight loss measurements conducted during corrosion tests showed that percentage weight losses were lower than the total flux losses. Scanning electron microscope studies of corroded specimens disclosed that the magnets first underwent dissolution of the grain-boundary phase, followed by the detachment and movement of the loosened grains in the magnetic field. The degradation was accelerated by oxidation of the matrix phase, which introduced further damage by volume expansion.</p>