Sota Koyama, Norifusa Inaba, M. Morita, Shin-ichi Motoda
{"title":"碳钢腐蚀产物结垢的优先地点","authors":"Sota Koyama, Norifusa Inaba, M. Morita, Shin-ichi Motoda","doi":"10.2355/tetsutohagane.tetsu-2021-035","DOIUrl":null,"url":null,"abstract":"Although it has been pointed out that corrosion products are the preferred scaling site, the detail research has not been conducted. In this study, the initial scaling sites on carbon steel with corrosion product were investigated and scaling mechanisms were discussed. Carbon steel sheets were immersed in a solution supersaturated condition for magnesium silicate under normal standard state. Scaling at a corroded part on carbon steel was easier to occur than that at non-corroded part on carbon steel. The corrosion product was comprised of Fe 2 O 3 (Hematite), Fe 3 O 4 (Magnetite), and β -FeOOH (Akaganeite). When the particles of Fe 2 O 3 , Fe 3 O 4 , and β -FeOOH were individually immersed in the solution, the formation of magnesium silicate occurs only on β -FeOOH. One of the preferred scaling sites for magnesium silicate was β -FeOOH. The physical and chemical interactions were investigated. The physical interactions were evaluated by zeta potential, and the results suggested that the repulsion occurs between them. On the other hand, the chemical interaction was evaluated by IR and Raman analyses. Only IR spectrum of β -FeOOH changed. The change was derived from absorption range of Fe–OH in β -FeOOH. The OH group in β -FeOOH may react with silanol group by the dehydration-condensation reaction.","PeriodicalId":22340,"journal":{"name":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2022-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Preferential Site for Scaling on Carbon Steel with Corrosion Products\",\"authors\":\"Sota Koyama, Norifusa Inaba, M. Morita, Shin-ichi Motoda\",\"doi\":\"10.2355/tetsutohagane.tetsu-2021-035\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Although it has been pointed out that corrosion products are the preferred scaling site, the detail research has not been conducted. In this study, the initial scaling sites on carbon steel with corrosion product were investigated and scaling mechanisms were discussed. Carbon steel sheets were immersed in a solution supersaturated condition for magnesium silicate under normal standard state. Scaling at a corroded part on carbon steel was easier to occur than that at non-corroded part on carbon steel. The corrosion product was comprised of Fe 2 O 3 (Hematite), Fe 3 O 4 (Magnetite), and β -FeOOH (Akaganeite). When the particles of Fe 2 O 3 , Fe 3 O 4 , and β -FeOOH were individually immersed in the solution, the formation of magnesium silicate occurs only on β -FeOOH. One of the preferred scaling sites for magnesium silicate was β -FeOOH. The physical and chemical interactions were investigated. The physical interactions were evaluated by zeta potential, and the results suggested that the repulsion occurs between them. On the other hand, the chemical interaction was evaluated by IR and Raman analyses. Only IR spectrum of β -FeOOH changed. The change was derived from absorption range of Fe–OH in β -FeOOH. The OH group in β -FeOOH may react with silanol group by the dehydration-condensation reaction.\",\"PeriodicalId\":22340,\"journal\":{\"name\":\"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2022-07-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.2355/tetsutohagane.tetsu-2021-035\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tetsu To Hagane-journal of The Iron and Steel Institute of Japan","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.2355/tetsutohagane.tetsu-2021-035","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Preferential Site for Scaling on Carbon Steel with Corrosion Products
Although it has been pointed out that corrosion products are the preferred scaling site, the detail research has not been conducted. In this study, the initial scaling sites on carbon steel with corrosion product were investigated and scaling mechanisms were discussed. Carbon steel sheets were immersed in a solution supersaturated condition for magnesium silicate under normal standard state. Scaling at a corroded part on carbon steel was easier to occur than that at non-corroded part on carbon steel. The corrosion product was comprised of Fe 2 O 3 (Hematite), Fe 3 O 4 (Magnetite), and β -FeOOH (Akaganeite). When the particles of Fe 2 O 3 , Fe 3 O 4 , and β -FeOOH were individually immersed in the solution, the formation of magnesium silicate occurs only on β -FeOOH. One of the preferred scaling sites for magnesium silicate was β -FeOOH. The physical and chemical interactions were investigated. The physical interactions were evaluated by zeta potential, and the results suggested that the repulsion occurs between them. On the other hand, the chemical interaction was evaluated by IR and Raman analyses. Only IR spectrum of β -FeOOH changed. The change was derived from absorption range of Fe–OH in β -FeOOH. The OH group in β -FeOOH may react with silanol group by the dehydration-condensation reaction.
期刊介绍:
The journal ISIJ International first appeared in 1961 under the title Tetsu-to-Hagané Overseas. The title was changed in 1966 to Transactions of The Iron and Steel Institute of Japan and again in 1989 to the current ISIJ International.
The journal provides an international medium for the publication of fundamental and technological aspects of the properties, structure, characterization and modeling, processing, fabrication, and environmental issues of iron and steel, along with related engineering materials.
Classification
I Fundamentals of High Temperature Processes
II Ironmaking
III Steelmaking
IV Casting and Solidification
V Instrumentation, Control, and System Engineering
VI Chemical and Physical Analysis
VII Forming Processing and Thermomechanical Treatment
VIII Welding and Joining
IX Surface Treatment and Corrosion
X Transformations and Microstructures
XI Mechanical Properties
XII Physical Properties
XIII New Materials and Processes
XIV Social and Environmental Engineering.