| 引用本文: | 卢琳,刘天成,李晓刚.电沉积铁镍合金纳米晶薄膜微结构与耐蚀性能[J].材料科学与工艺,2013,21(1):37-42.DOI:10.11951/j.issn.1005-0299.20130107. |
| LU Lin,LIU Tian-cheng,LI Xiao-gang.Relationship between microstructure and corrosion resistance of electrodeposited nano-crystal Fe-Ni alloy film[J].Materials Science and Technology,2013,21(1):37-42.DOI:10.11951/j.issn.1005-0299.20130107. |
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| 摘要: |
| 采用电沉积方法从硫酸盐体系镀液中制备3种纳米级Fe-36Ni、Fe-44Ni、Fe-80Ni合金薄膜,应用原子力显微镜(AFM)、X射线衍射仪(XRD)、中性盐雾试验和电化学测量技术对三种Fe-Ni合金薄膜的微观结构和耐蚀性能进行了研究.结果表明,3种纳米Fe-Ni合金薄膜的耐腐蚀性能与合金的微观结构密切相关,具有单一γ相结构的Fe-80Ni耐蚀性能最好,由α-(Fe,Ni)相和γ-(Fe,Ni)相组成的混合固溶体Fe-44Ni次之,而含有单相铁、α-(Fe,Ni)相和γ-(Fe,Ni)相的混合固溶体Fe-36Ni合金最差,这是由于合金薄膜中各相电化学稳定性存在显著差异所致. |
| 关键词: 铁镍合金 电沉积 纳米晶薄膜 耐蚀性能 微结构 |
| DOI：10.11951/j.issn.1005-0299.20130107 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(51001012). |
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| Relationship between microstructure and corrosion resistance of electrodeposited nano-crystal Fe-Ni alloy film |
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LU Lin1,LIU Tian-cheng2,LI Xiao-gang1
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(1.Corrosion and Protection Center,University of Science and Technology Beijing,Beijing 100083,China;;2.Central Iron & Steel Research Institute,Beijing 100081,China)
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| Abstract: |
| Three nanocrystalline alloy thin films,Fe-36Ni,Fe-44Ni and Fe-80Ni,were prepared in sulphate bath by electrodeposition.Atomic force microscopy,X-ray diffraction spectroscopy,neutral salt spray and electrochemical measurement were used to investigate the microstructure and corrosion resistance of as-prepared Fe-Ni alloy thin films.Results showed that the corrosion resistance of three thin films was closely associated with their intrinsic microstructures.The corrosion resistances were in the following order:Fe-80Ni with single γ-(Fe,Ni) solid solution phase > Fe-44Ni composed of the mixed solid solution phase of α-(Fe,Ni) and γ-(Fe,Ni) > Fe-36Ni with single ferrous phase and the mixed phase of α-(Fe,Ni) andγ-(Fe,Ni).The corrosion resistance was assigned to the different electrochemical stability of different phases and the surface effect of nano-materials. |
| Key words: Fe-Ni alloy electrodeposition nano-crystalline thin film corrosion resistance microstructure |
