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首页> 外文会议>IEEE International Magnetics Conference >Corrosion behaviours of sintered NdFeB permanent magnets produced from cast alloy ingot, atomized powder of strip cast alloy ingot, atomized powder of strip cast alloy
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Corrosion behaviours of sintered NdFeB permanent magnets produced from cast alloy ingot, atomized powder of strip cast alloy ingot, atomized powder of strip cast alloy

机译：由铸造合金铸锭生产的烧结NdFeB永磁体的腐蚀行为，条带铸造合金铸锭的雾化粉末，条带铸造合金的雾化粉末

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摘要

Corrosion resistance of sintered NdFeB magnets is an important factor which determines the application of these materials. The widening range of applications in severe environments is the most challenging task to improve the corrosion resistance of sintered NdFeB magnets. On the other hand, an improved corrosion resistance of NdFeB magnets will ease end-user processing (e.g. coating) and will lead to cost reduction. The focus of the present study is to understand the corrosion mechanism and to standardize the test technique of the corrosion for NdFeB magnets. Following four parameters that have impacts to the corrosion characteristics of sintered NdFeB magnets have been studied: 1) methods used to prepare the magnet surface for corrosion test, 2) microstructure of magnet surface, 3) magnet chemistry with emphasis on total rare earth content, and 4) sintering and heat treatments.
机译：烧结NdFeB磁体的耐腐蚀性是决定这些材料的应用的重要因素。严重环境中的应用范围的扩展是最具挑战性的任务，可以提高烧结NDFEB磁体的耐腐蚀性。另一方面，NDFEB磁体的改进耐腐蚀性将容易地缓解终端用户处理（例如涂层）并且将导致成本降低。本研究的重点是了解腐蚀机制，并标准化NDFEB磁体的腐蚀的测试技术。在研究了对烧结NDFEB磁体的腐蚀特性的四个参数之后：1）用于制备用于腐蚀试验的磁体表面的方法，2）磁体表面的微观结构，磁体化学强调总稀土含量， 4）烧结和热处理。

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