{"title":"等离子电解氧化法处理的 AH36 钢和 TC4 合金的电化学腐蚀行为研究","authors":"Xin Li, Qiaoqin Guo, Huishan Jin, Mingxu Li, Zhong Yang, Yajian Wang","doi":"10.1007/s11665-024-09535-y","DOIUrl":null,"url":null,"abstract":"<div><p>The plasma electrolytic oxidation (PEO) technology was used to prepare ceramic coating on the surface of titanium alloy to prevent the galvanic corrosion of AH36/TC4(PEO). The results showed that after PEO treatment, ceramic coating with micropores was formed on the substrate surface. When the voltage was low, the pore size was small. With the increase of voltage, the thickness and the pore sizes of the coating increased. After PEO process, the average galvanic corrosion rate was reduced by 60%, and the number of pitting pits on the AH36 surface in the galvanic pair was reduced. The tensile strength and elongation of AH36 coupled with TC4(PEO) decreased by 4.0% and 11.9%, respectively. The contents of the corrosion products Fe<sub>2</sub>O<sub>3</sub>·H<sub>2</sub>O and FeO(OH) decreased, and the corrosion area of the tensile specimen was evidently reduced. Therefore, the PEO process can effectively reduce the galvanic corrosion susceptibility of AH36/TC4(PEO), alleviate the reduction degree of ductility and toughness of anode AH36, and enhance the corrosion resistance performance.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"33 21","pages":"11682 - 11694"},"PeriodicalIF":2.2000,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study on Galvanic Corrosion Behavior of AH36 Steel and TC4 Alloy Processed by Plasma Electrolytic Oxidation\",\"authors\":\"Xin Li, Qiaoqin Guo, Huishan Jin, Mingxu Li, Zhong Yang, Yajian Wang\",\"doi\":\"10.1007/s11665-024-09535-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The plasma electrolytic oxidation (PEO) technology was used to prepare ceramic coating on the surface of titanium alloy to prevent the galvanic corrosion of AH36/TC4(PEO). The results showed that after PEO treatment, ceramic coating with micropores was formed on the substrate surface. When the voltage was low, the pore size was small. With the increase of voltage, the thickness and the pore sizes of the coating increased. After PEO process, the average galvanic corrosion rate was reduced by 60%, and the number of pitting pits on the AH36 surface in the galvanic pair was reduced. The tensile strength and elongation of AH36 coupled with TC4(PEO) decreased by 4.0% and 11.9%, respectively. The contents of the corrosion products Fe<sub>2</sub>O<sub>3</sub>·H<sub>2</sub>O and FeO(OH) decreased, and the corrosion area of the tensile specimen was evidently reduced. Therefore, the PEO process can effectively reduce the galvanic corrosion susceptibility of AH36/TC4(PEO), alleviate the reduction degree of ductility and toughness of anode AH36, and enhance the corrosion resistance performance.</p></div>\",\"PeriodicalId\":644,\"journal\":{\"name\":\"Journal of Materials Engineering and Performance\",\"volume\":\"33 21\",\"pages\":\"11682 - 11694\"},\"PeriodicalIF\":2.2000,\"publicationDate\":\"2024-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Engineering and Performance\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11665-024-09535-y\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11665-024-09535-y","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Study on Galvanic Corrosion Behavior of AH36 Steel and TC4 Alloy Processed by Plasma Electrolytic Oxidation
The plasma electrolytic oxidation (PEO) technology was used to prepare ceramic coating on the surface of titanium alloy to prevent the galvanic corrosion of AH36/TC4(PEO). The results showed that after PEO treatment, ceramic coating with micropores was formed on the substrate surface. When the voltage was low, the pore size was small. With the increase of voltage, the thickness and the pore sizes of the coating increased. After PEO process, the average galvanic corrosion rate was reduced by 60%, and the number of pitting pits on the AH36 surface in the galvanic pair was reduced. The tensile strength and elongation of AH36 coupled with TC4(PEO) decreased by 4.0% and 11.9%, respectively. The contents of the corrosion products Fe2O3·H2O and FeO(OH) decreased, and the corrosion area of the tensile specimen was evidently reduced. Therefore, the PEO process can effectively reduce the galvanic corrosion susceptibility of AH36/TC4(PEO), alleviate the reduction degree of ductility and toughness of anode AH36, and enhance the corrosion resistance performance.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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