将纳米化Zr-4合金和普通Zr-4合金进行水腐蚀并得到腐蚀面的SEM,利用计算机图像处理技术提取金属/氧化膜界面形貌图,并研究腐蚀界面形貌的分形特征.研究表明:纳米化Zr-4合金的腐蚀产物更具有保护性,其抗腐蚀性能优于普通Zr-4合金:腐蚀界面的分形分维变化说明纳米化Zr-4合金和普通Zr-4合金腐蚀规律不同,并从分形的角度上进一步揭示纳米化Zr-4合金的腐蚀机理.
Nanocrystalline Zr-4 alloy and common Zr-4 alloys were corroded by water and the SEM of etched surface was obtained. The morphology of metal/oxide film interface was extracted from SEM by computer image processing technique. Fractal characteristic of corrosion interface morphology was calculated to explain the nancrystalline Zr-4 alloy corrosion mechanism. It was found that the corrosion resistance of nanerystalline Zr-4 alloy was superior to that of common Zr-4 alloy. Fractal and fractal dimension of corrosion interface of nancrystalline Zr-4 alloy was different from that of common Zr-4 alloy. The corrosion mechanism of nanocrystalline Zr-4 alloy was further revealed by fractal method.
参考文献
| [1] | 叶林凤,朱玉涛,张喜燕,李聪,张强,刘年富,石明华,邱绍宇,张鹏程,韦以明.纳米组织Zr-4合金氧化膜中应力应变研究[J].兵器材料科学与工程,2008(03):38-41. |
| [2] | 叶林凤,张喜燕,李聪.锆合金氧化膜内应力的产生与释放机制的探讨[J].稀有金属,2007(z1):91-95. |
| [3] | 黄润生;黄浩.混沌及其应用[M].武汉:武汉大学出版社,2007:183-236. |
| [4] | 杨书申,邵龙义.MATLAB环境下图像分形维数的计算[J].中国矿业大学学报,2006(04):478-482. |
| [5] | Nebojsa T. Milosevic;Dusan Ristanovic .Fractal and nonfractal properties of triadic Koch curve[J].Chaos, Solitons and Fractals: Applications in Science and Engineering: An Interdisciplinary Journal of Nonlinear Science,2007(4):1050-1059. |
| [6] | Schumacher M.Seawater corrosion handbook[M].New Jersey:Noyes data corporation,1979 |
| [7] | 边丽,翁永基,许述剑.基于分形动力学过程的腐蚀预测模型[J].化学通报,2006(03):207-210. |
| [8] | 黄强 .锆合金耐腐蚀性能研究综述[J].核动力工程,1996,17:262. |
| [9] | 周邦新,李强,姚美意,刘文庆,褚玉良.锆-4合金在高压釜中腐蚀时氧化膜显微组织的演化[J].核动力工程,2005(04):364-371. |
| [10] | Bouvier P.;Godlewski J.;Lucazeau G. .A Raman study of the nanocrystallite size effect on the pressure-temperature phase diagram of zirconia grown by zirconium-based alloys oxidation[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2002(2/3):118-126. |
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