对Q235碳钢在10%,20%和34%(水饱和)含水滨海盐土中一个月的腐蚀形貌进行宏观和微观形貌观察,计算不同含水条件下的腐蚀失重,并对腐蚀产物进行Raman光谱分析.结果表明:由于受扩散控制的影响,Q235碳钢在10%含水滨海盐土中的腐蚀失重最大,其形貌以局部腐蚀为主;含水量增加,腐蚀失重迅速下降,腐蚀形貌由局部腐蚀转变为均匀腐蚀.Q235碳钢在20%和34%含水滨海盐土中的腐蚀产物主要是α-FeOOH;受腐蚀产物表面脱水的影响,在10%含水条件下的腐蚀产物出现分层结构,内层主要成分是α-FeOOH,腐蚀产物中的Fe2O3和Fe3O4等多分布在α-FeOOH外.
参考文献
| [1] | NEFF D;REGUER S;BELLOT-GURLET L et al.Structural characterization of corrosion products on archaeological iron.an integrated analytical approach to establish corrosion forms[J].Journal of Raman Spectroscopy,2004,35(8-9):739-745. |
| [2] | NEFF D;BELLOT-GURLET L;DILLMANN P et al.Raman imaging of ancient rust scales on archaeological iron artefacts for long-term atmospheric corrosion mechanisms study[J].Journal of Raman Spectroscopy,2006,37(10):1228-1237. |
| [3] | 魏宝明.金属腐蚀理论及应用[M].北京:化学工业出版社,2004:196-199. |
| [4] | GARDINER C P;MELCHERS R E .Corrosion of mild steel in porous media[J].Corrosion Science,2002,44(11):2459-2478. |
| [5] | 张宝宏;丛文博;杨萍.金属电化学腐蚀与防护[M].北京:化学工业出版社,2005:110-115. |
| [6] | Majzlan J;Mazeina L;Navrotsky A .Enthalpy of water adsorption and surface enthalpy of lepidocrocite (gamma-FeOOH)[J].Geochimica et Cosmochimica Acta: Journal of the Geochemical Society and the Meteoritical Society,2007(3):615-623. |
| [7] | Sang-Koo Kwon;Kozo Shinoda;Shigeru Suzuki;Yoshio Waseda .Influence of silicon on local structure and morphology of γ-FeOOH and α-FeOOH particles[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2007(3):1513-1526. |
| [8] | YAMASHITA M;MIYUKI H;MATSUDA Y et al.The long term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century[J].Corrosion Science,1994,36(02):283-299. |
| [9] | T. Kamimura;S. Hara;H. Miyuki;M. Yamashita;H. Uchida .Composition and protective ability of rust layer formed on weathering steel exposed to various environments[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(9):2799-2812. |
| [10] | HARA S;KAMIMURA T;MIYUKI H et al.Taxonomy for protective ability of rust layer using its composition formed on weathering steel bridge[J].Corrosion Science,2007,49(03):1131-1142. |
| [11] | Gerwin W;Baumhauer R .Effect of soil parameters on the corrosion of archaeological metal finds.[J].Geoderma: An International Journal of Soil Science,2000(1/2):63-80. |
| [12] | NEFF D;DILLMANN P;BELLOT-GURLET L et al.Corrosion of iron archaeological artefacts in soil:characterization of the corrosion system[J].Corrosion Science,2005,47(02):515-535. |
| [13] | D. Neff;P. Dillmann;M. Descostes;G. Beranger .Corrosion of iron archaeological artefacts in soil: Estimation of the average corrosion rates involving analytical techniques and thermodynamic calculations[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2006(10):2947-2970. |
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