论文总字数：15163字

摘 要

在不锈钢表面制备纳米多孔模是增强不锈钢功能和应用的有效方法之一，然而这有可能影响不锈钢的抗腐蚀性。本文运用阳极氧化法制备纳米表面膜，通过实验选取最优参数，从而推荐较优的304不锈钢表面制备纳米多孔膜的工艺参数。研究发现：当电解液浓度为5%时，纳米多孔膜形态最好，耐腐蚀性能最好。当阳极氧化时间为10min时，纳米多孔膜耐腐蚀性能最好。当阳极氧化电压为30V时，纳米多孔膜耐腐蚀性能最好。在304不锈钢表面制备纳米多孔膜较优的的工艺参数为：电解液浓度5%，阳极氧化时间为10min，电压为30V。

关键词：304不锈钢 纳米结构 制备 耐腐蚀性能

Preparation and corrosion resistance

of nanostructure on the surface of stainless steel

Abstract

The preparation of nanoporous molds on stainless steel surfaces is one of the effective methods to enhance the function and application of stainless steels, however this may affect the corrosion resistance of stainless steels. In this paper, perchloric acid ethylene glycol solution was used as the electrolyte, and the nanoporous film was prepared on the surface of 304 stainless steel by anodic oxidation. The morphology of the nanoporous film prepared on the surface of 304 stainless steel was studied by studying the concentration of the electrolyte, the anodizing time and the voltage. The influence of the corrosion resistance and the like, thereby recommending a superior 304 stainless steel surface preparation of nanoporous membrane process parameters. The study found that the nanoporous membrane has the best morphology and the best corrosion resistance when the electrolyte concentration is 5% . When the anodizing time is 10min, the nanoporous film has the best corrosion resistance. When the anodic oxidation voltage is 30V, the nanoporous membrane has the best corrosion resistance. In this paper, the optimum process parameters for the preparation of nanoporous films on 304 stainless steel using perchloric acid as the electrolyte are as follows: the electrolyte concentration is 5%, the anodization time is 10 minutes, and the voltage is 30V.

Keywords: 304 Stainless Steel; Nanostructure; Preparation; Corrosion resistance

目 录

摘 要............................................................. I

Abstract............................................................ II

目录.............................................................. III

第一章 绪 论....................................................... 1

1.1引言........................................................... 1

1.2 不锈钢的分类及抗菌不锈.......................................... 2

1.3不锈钢的抗腐蚀性及改善其耐腐蚀性的方............................3

1.3.1 不锈钢的抗腐蚀............................................... 3

1.3.2 改善不锈钢耐腐蚀性的方法 3

1.3.2.1 离子注入..................................................3

1.3.2.2热处理工艺.................................................4

1.3.2.3 等离子表面合金化.......................................... 5

1.3.2.4化学气相沉积表面改性法..................................... 5

1.3.2.5溶胶凝胶法表面改性......................................... 5

1.3.2.6水热法表面改性............................................. 6

1.3.2.7阳极氧化表面改性........................................... 7

1.4 小结............................................................ 7

第二章 实验方法.................................................... 8

2.1实验原料及仪器.................................................. 8

2.1.1实验原料.................................................... 8

2.1.2实验仪器.................................................... 8

2.2实验方法........................................................ 9

2.2.1阳极氧化电解实验............................................... 9

2.2.2塔菲尔实验................................................... 10

第三章 实验结果分析及讨论.......................................... 13

3.1电解液浓度对纳米多孔膜的影响.................................... 13

3.2 阳极氧化时间对纳米多孔膜的影响................................. 16

3.3阳极氧化电极电压对纳米多孔膜的影响............................. 18

第四章 结 论..................................................... 21

参考文献...........................................................22

致 谢.............................................................24

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