{"title":"Influence of Anodization Condition on Hydrophobicity, Morphology, and Corrosion Resistance of 17-4PH Stainless Steel","authors":"O. Kosasang, S. Rattanawong, S. Chumphongphan","doi":"10.3103/S1068375522040081","DOIUrl":null,"url":null,"abstract":"<p>The anodization process was applied to 17-4PH stainless steel to modify its surface and to enhance hydrophobicity. The effects of various H<sub>2</sub>SO<sub>4</sub>/glycerin electrolytes and applied voltages on the water contact angle, the surface morphology (roughness), and corrosion resistance were investigated. It was observed that a high ratio of an H<sub>2</sub>SO<sub>4</sub>/glycerin electrolyte and high applied potentials resulted in an increase of a contact angle and an enhancement of the surface roughness. The highest contact angle was found to be up to 122.3°, when anodizing at 40 V using 70/30 of H<sub>2</sub>SO<sub>4</sub>/glycerin as electrolyte. Any further increase in the ratio of H<sub>2</sub>SO<sub>4</sub>/glycerin tended to reduce the contact angle. An electrochemical test showed that corrosion resistance was dependent on the hydrophobicity and surface roughness.</p>","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 4","pages":"393 - 401"},"PeriodicalIF":1.1000,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering and Applied Electrochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068375522040081","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
The anodization process was applied to 17-4PH stainless steel to modify its surface and to enhance hydrophobicity. The effects of various H2SO4/glycerin electrolytes and applied voltages on the water contact angle, the surface morphology (roughness), and corrosion resistance were investigated. It was observed that a high ratio of an H2SO4/glycerin electrolyte and high applied potentials resulted in an increase of a contact angle and an enhancement of the surface roughness. The highest contact angle was found to be up to 122.3°, when anodizing at 40 V using 70/30 of H2SO4/glycerin as electrolyte. Any further increase in the ratio of H2SO4/glycerin tended to reduce the contact angle. An electrochemical test showed that corrosion resistance was dependent on the hydrophobicity and surface roughness.
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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