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溶胶-凝胶ZrO2纳米薄膜在不同NaCl水溶液中的电化学腐蚀和摩擦学性能研究
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内蒙古工业大学化工学院

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Electrochemical corrosion and tribocorrosion properties of sol-gel ZrO2 nanofilms coated on stainless steel in the diverse NaCl aqueous solutions
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College of Chemical Engineering,Inner Mongolia University of Technology

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The Natural Science Foundation of Inner Mongolia Autonomous Region of China(2019MS01016)

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    摘要:

    通过溶胶-凝胶旋涂方法将ZrO2膜沉积在304不锈钢基底上。采用电化学测试技术和往复磨损试验装置研究了不同NaCl溶液中薄膜的电化学腐蚀和摩擦腐蚀特性。结果表明,涂膜试样的抗腐蚀和摩擦腐蚀性能比裸露的基材要好。在NaCl溶液中,增加溶液温度或浓度降低了ZrO2薄膜的保护作用;研究了溶液温度系数,表明涂层试样表面出现了严重的点蚀和明显的裂纹;溶液浓度系数的研究显示了样品表面的点蚀腐蚀。

    Abstract:

    ZrO2 films were deposited on 304 stainless-steel substrates by a sol-gel spin coating method. Electrochemical testing technology and a to-and-fro wear test apparatus were used to study the electrochemical corrosion and tribocorrosion properties of the films in different NaCl solutions. According to the results, the coated specimens were better than the bare substrate regarding resistance to corrosion and tribocorrosion. In the NaCl solutions, increasing either the solution temperature or concentration decreased the protective effects of the ZrO2 films; study of the solution temperature factor showed that serious pitting corrosion and obvious cracking occurred on the surface of the coated specimens; study of the solution concentration factor showed pitting corrosion on the sample surfaces. Regarding the tribocorrosion of the coated specimens, as the NaCl concentration increased from 2% to 6.5%, the abrasive wear was more obvious, and the corrosive wear was aggravated.

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张镇华,冀国俊.溶胶-凝胶ZrO2纳米薄膜在不同NaCl水溶液中的电化学腐蚀和摩擦学性能研究[J].稀有金属材料与工程,2020,49(11):3748~3760.[Zhenhua Zhang, Guojun Ji. Electrochemical corrosion and tribocorrosion properties of sol-gel ZrO2 nanofilms coated on stainless steel in the diverse NaCl aqueous solutions[J]. Rare Metal Materials and Engineering,2020,49(11):3748~3760.]
DOI:10.12442/j. issn.1002-185X. E20190104

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  • 收稿日期:2019-10-31
  • 最后修改日期:2019-11-26
  • 录用日期:2019-11-29
  • 在线发布日期: 2020-12-09
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