采用热扩渗方法在低碳钢表面制备了Fe-Co、Fe-Ni和Fe-Co-Ni合金化层.热扩渗过程在1 000℃的纯H2气氛中进行,处理时间为5h.采用XRD、EDS和SEM对合金化层的组成和微结构进行了测试,并采用电化学手段分析了合金化层在硼酸缓冲溶液(pH=8.4)中的钝化行为.结果表明,合金化层均为单一α-Fe固溶体相;Fe-Ni合金化层以及镍含量相对高的Fe-Co-Ni合金化层表面易于形成致密的钝化膜;这些钝化膜可以明显改善低碳钢基体在碱性溶液环境中的耐蚀性.
参考文献
[1] | Liu XJ;Wang HC;Li DW;Wu YX .Study on kinetics of carbide coating growth by thermal diffusion process[J].Surface & Coatings Technology,2006(6):2414-2418. |
[2] | A.I. Oliva;J.E. Corona;V. Sosa .AlCu alloy films prepared by the thermal diffusion technique[J].Materials Characterization,2010(7):696-702. |
[3] | 隗功益.表面改性技术在H13钢上的应用[J].表面技术,2007(06):77-80. |
[4] | 罗庆洪,李春志,娄艳芝,赵振业.磨削工艺对渗碳M50NiL钢表面变质层微观结构和性能及疲劳性能影响[J].金属学报,2012(02):194-198. |
[5] | Koo CH;Bai CY;Luo YJ .The structure and high temperature corrosion behavior of pack aluminized coatings on superalloy IN-738LC[J].Materials Chemistry and Physics,2004(2/3):258-268. |
[6] | 盛敏奇,许继芳,万康,吕臣凯.低碳钢表面Fe-Ni合金层的制备及耐腐蚀性能[J].材料研究学报,2013(02):183-188. |
[7] | Qiongyu Zhou;Jibo Jiang;Qingdong Zhong.Preparation of Cu-Ni-Fe alloy coating and its evaluation on corrosion behavior in 3.5% NaCl solution[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2013:171-175. |
[8] | Zhou, Q.;Wang, Y.;Wu, H.;Zhong, Q.;Jiang, J..Preparation of passive Cu-Ni-Fe coating on low-carbon steel for improving corrosion resistance[J].Surface & Coatings Technology,2012:503-507. |
[9] | Scott P. Harrington;Feng Wang;Thomas M. Devine .The structure and electronic properties of passive and prepassive films of iron in borate buffer[J].Electrochimica Acta,2010(13):4092-4102. |
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