(Ce20Nd80)31Fe(bal)B1M磁体腐蚀产物多样性的研究
(Ce20Nd80)31Fe(bal)B1M磁体腐蚀产物多样性的研究
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DOI：
10.13228/j.boyuan.issn1006-6543.20160057
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
潘伟
中科院分区：
文献类型：
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作者：
吴亚萍;朱明刚;石晓宁;宋利伟;潘伟
采用双主相粉末烧结法制备的（Ce20Nd80）31FebalB1M磁体在高加速应力试验系统中进行了腐蚀试验。利用能谱仪对腐蚀形貌进行了观察和分析。结果表明：腐蚀24 h后，腐蚀产物呈球状和球状，球状产物主要为稀土氧化物，随着腐蚀时间的延长，球状产物演变为絮凝物；而球状产物主要是氧化铁，随着蚀刻时间的增加，氧化铁部分脱落，剩余的腐蚀颗粒附着在基体上，在一定程度上阻止了进一步的腐蚀。
The（Ce20Nd80）31FebalB1M magnets prepared by double main phase powder sintering process were corroded in highly accelerated stress test system. The corrosion morphology was observed and analyzed by EDS energy spectrum. Results show that the corrosion products are bobbles-like and ball-like after corroded for 24 h. The bobbles-like product is mainly rare earth oxide，which evolves into flocculent with the increase of etching time. While the ball-like product is mainly iron oxide，which partially falls off with the increase of etching time，and the remaining corroded particles are concluded on the substrate，preventing further corrosion to some extent.