20.500.12556/DiRROS-22849 Corrosion of sintered NdFeB permanent magnets The green transition to reduce reliance on fossil fuel energy sources and minimise global warming is accelerating the need for NdFeB permanent magnet materials. Sintered NdFeB magnets cover the largest segment percentage within the permanent magnet type group, with a share of over 50%. The microstructure of NdFeB magnets includes grains of the Nd1+εFe4B4 (B-rich phase), which form grain boundaries with both the Nd-rich (Nd4Fe) and matrix (Nd2Fe14B) phases. NdFeB magnets are prone to degradation in harsh environments due to the low corrosion resistance of both iron and neodymium. Consequently, magnets require corrosion protection because their magnetic properties would be jeopardised due to the degradation caused by the corrosion process. Understanding magnets’ electrochemical and corrosion properties is crucial for developing their corrosion protection and thus prolonging their smooth operation in numerous industrial applications. This review aims to present the fundamental corrosion processes on sintered NdFeB magnets, provide an overview of the contemporary magnet production processes of NdFeB magnets and their impact on the corrosion resistance, and summarise the corrosion protection of NdFeB magnets. Prospects are presented, especially regarding the use of magnets in the transportation (hybrid and electric vehicles) industry and the development of alternative types of coatings. sintered magnets green transition sintrani magneti zeleni prehod true false true IOP Publishing Združeno kraljestvo Angleški jezik Slovenski jezik © 2025 The Author(s). Neznano 2025-07-03 10:26:30 2025-07-03 10:26:30 2025-10-24 03:52:19 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 3. 7. 2025; str. [1-20] no. 7, [article no.] 071501 Vol. 172 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2025-01-24 0000-00-00 2025-07-02 546 1945-7111 10.1149/1945-7111/ade509 241210627 https://iopscience.iop.org/article/10.1149/1945-7111/ade509 1 6dc610d6-57e7-11f0-8080-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33238 RAZ_Pozenel_Kovacic_Terezija_2025.pdf RAZ_Pozenel_Kovacic_Terezija_2025.pdf 1 E553330B5AB56E798FA9A5A6CA217816 cc36fdf1c364a02dc541051bde67f6933f9dfe986cce350d25bac625b2c17538 6b3468ce-57e8-11f0-8080-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=33239 Institut Jožef Stefan 0 0 0