黄明,陈庆军,吕远斌,谢飞,何光明

• 1:南昌航空大学材料科学与工程学院

摘要(Abstract)：

通过调整430不锈钢与合金粉的质量比(M)获得了成分窗口宽且具有优异耐腐蚀性和热稳定性的铁基非晶粉芯丝材。利用差示扫描量热仪(DSC)研究铁基非晶粉芯丝材的热稳定性,采用电化学和阻抗技术研究铁基非晶粉芯丝材在3.5%NaCl溶液中的耐腐蚀性能,同时根据Mott-Schottky理论对其钝化膜的半导体特征及致密性进行分析。结果表明:随着M值的增加,铁基非晶粉芯丝材的热稳定性先下降后升高;在3.5%NaCl溶液中,铁基非晶粉芯丝材的耐腐蚀性能随着M值的增加先增强后减弱,但都强于430不锈钢;铁基非晶粉芯丝材的钝化膜在0.3~0.85 V区间内具有n型半导体特征,其致密性随着M值的增加先升高后下降。

关键词(KeyWords)： 铁基非晶粉芯丝材;430不锈钢;热稳定性;耐腐蚀性能;Mott-Schottky理论

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51741105)

作者(Author): 黄明,陈庆军,吕远斌,谢飞,何光明

DOI: 10.13289/j.issn.1009-6264.2018-0069

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