研究了烧结钕铁硼在硝酸、盐酸、硫酸、磷酸及草酸介质中的腐蚀特征.采用动电位扫描及腐蚀失重测试分析了腐蚀行为和特征,采用AFM和SEM观察了酸腐蚀后的NdFeB表面微观形貌.结果表明,烧结钕铁硼在盐酸及硫酸介质中的腐蚀速率最大,在磷酸及草酸介质中呈钝化态,在硝酸中的边缘腐蚀较严重,对磁体的宏观尺寸破坏较大,在各种酸中腐蚀后的微表面都更粗糙了.
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