Many cases of undercoating corrosion occurred at the early stage after repainting have been reported in the steel structures, mainly caused by the residual corrosion products containing salts on the steel substrate. A high-power continuous wave (CW) laser cleaning has been considered one of the effective rust removal methods applied to steel plates. However, there are no fundamental studies on the surface characteristics of steel substrate after the CW laser surface preparation. This study aims to conduct an essential examination of the surface characteristics of steel treated with a high-power CW laser. The objectives of this study are the laser-irradiated steel, and the steel blasted after laser irradiation, conducting the surface roughness measurement, metallographic analysis, XRD analysis, electro-chemical tests, and adhesion test on anti-corrosion coating. The results demonstrated the surface characteristics, the composition of the oxide film, the depth of the re-melted zone and heat-affected zone, the residual property of oxide film, and its corrosion resistance. The adhesion properties of paint coating and thermal spray coating were also revealed.
"},{"@language":"ja","@value":"鋼構造物の塗替え塗装後に，鋼素地に残留した塩類を含む腐食生成物が原因となり，塗膜下腐食が早期に発生する事例が多数報告されている．この腐食生成物を効果的に除去する方法の1つとして，高出力連続波レーザーが考えられる．しかし，このレーザーで素地調整した鋼材の表面特性に関する基礎研究は行われていない．本研究では高出力連続波レーザーで処理した鋼材の表面特性に関する基礎的検討を行うことを目的とした．そのために，レーザー照射した鋼材と照射後にブラスト処理した鋼材を対象として，鋼素地の粗さ測定，金属組織分析，XRD分析，電気化学測定および防食皮膜の付着試験を行った．これらの結果から，表面性状，酸化皮膜の成分構成，溶融部と熱影響部の深さ，酸化皮膜の残留性状と防食特性，および塗膜と溶射皮膜の付着特性を明らかにした．
"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410011318894415104","@type":"Researcher","foaf:name":[{"@language":"en","@value":"KAINUMA Shigenobu"},{"@language":"ja","@value":"貝沼 重信"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院 工学研究院社会基盤部門"}]},{"@id":"https://cir.nii.ac.jp/crid/1410011318894415106","@type":"Researcher","foaf:name":[{"@language":"en","@value":"ZHUANG Shusen"},{"@language":"ja","@value":"庄 樹森"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"福州大学 先進製造学院"}]},{"@id":"https://cir.nii.ac.jp/crid/1410011318894415105","@type":"Researcher","foaf:name":[{"@language":"en","@value":"LIU Weijie"},{"@language":"ja","@value":"劉 偉傑"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院 工学府都市環境システム工学専攻"}]},{"@id":"https://cir.nii.ac.jp/crid/1410011318894415107","@type":"Researcher","foaf:name":[{"@language":"en","@value":"HARAGUCHI Manabu"},{"@language":"ja","@value":"原口 学"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"株式会社トヨコー 浜松研究所"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"21854653"}],"prism:publicationName":[{"@language":"en","@value":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))"},{"@language":"ja","@value":"土木学会論文集A1（構造・地震工学）"},{"@language":"en","@value":"JJSCE A1"},{"@language":"en","@value":"J. JSCE"},{"@language":"en","@value":"J. JSCE Ser. A1"},{"@language":"en","@value":"J. JSCE, Ser. A1"},{"@language":"en","@value":"A1"},{"@language":"en","@value":"Ser. A1"},{"@language":"ja","@value":"土木学会論文集Ａ１"},{"@language":"ja","@value":"土論Ａ１"},{"@language":"ja","@value":"地震工学論文集"},{"@language":"ja","@value":"土木学会論文集Ａ１（構造・地震工学）"}],"dc:publisher":[{"@language":"en","@value":"Japan Society of Civil Engineers"},{"@language":"ja","@value":"公益社団法人 土木学会"}],"prism:publicationDate":"2022","prism:volume":"78","prism:number":"2","prism:startingPage":"213","prism:endingPage":"230"},"reviewed":"false","url":[{"@id":"https://www.jstage.jst.go.jp/article/jscejseee/78/2/78_213/_pdf"}],"availableAt":"2022","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=corrosion","dc:title":"corrosion"},{"@id":"https://cir.nii.ac.jp/all?q=surface%20preparation","dc:title":"surface preparation"},{"@id":"https://cir.nii.ac.jp/all?q=laser","dc:title":"laser"},{"@id":"https://cir.nii.ac.jp/all?q=abrasive%20blast","dc:title":"abrasive blast"},{"@id":"https://cir.nii.ac.jp/all?q=electrochemical%20test","dc:title":"electrochemical test"},{"@id":"https://cir.nii.ac.jp/all?q=adhesion%20test","dc:title":"adhesion test"},{"@id":"https://cir.nii.ac.jp/all?q=continuous%20wave%20operation","dc:title":"continuous wave operation"},{"@id":"https://cir.nii.ac.jp/all?q=paint%20coating","dc:title":"paint coating"},{"@id":"https://cir.nii.ac.jp/all?q=thermal%20spray%20coating","dc:title":"thermal spray coating"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011144252233856","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Formation of superhydrophobic micro-nanostructured iron oxide for corrosion protection of N80 steel"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011144299908992","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Comparative Corrosion Behavior of Five Microstructures (Pearlite, Bainite, Spheroidized, Martensite, and Tempered Martensite) Made from a High Carbon Steel"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011145534413952","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Effects of process parameters on the microstructure and mechanical properties of 24CrNiMo steel fabricated by selective laser melting"}]},{"@id":"https://cir.nii.ac.jp/crid/1360290617450062208","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Characterizing corrosion properties of carbon steel affected by high-power laser cleaning"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292618763079040","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The influence of the sandblasting as a surface mechanical attrition treatment on the electrochemical behavior of carbon steel in different pH solutions"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292620395775872","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Scanning velocity influence on microstructure, microhardness and wear resistance performance of laser deposited Ti6Al4V/TiC composite"}]},{"@id":"https://cir.nii.ac.jp/crid/1360298344364203520","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The transformation hardening of steel surfaces by laser beams—I. Hypo-eutectoid steels"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574094202041472","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Blistering of paint films and filiform corrosion"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574095053584256","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Microstructure evolution and gradient performance of 24CrNiMo steel prepared via laser melting deposition"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574095520994816","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Nontraditional Machining Processes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855569983777664","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Effect of cooling rate on residual stress and mechanical properties of laser remelted ceramic coating"}]},{"@id":"https://cir.nii.ac.jp/crid/1361418519728437632","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The evolution of bainite and mechanical properties of direct laser deposition 12CrNi2 alloy steel at different laser power"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699994801073536","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"RIR - Measurement and Use in Quantitative XRD"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699995890229504","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The effect of temperature distribution and cooling rate on microstructure and microhardness of laser re-melted and laser-borided carbon steels with various carbon concentrations"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470213497216","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Comparative study of laser surface hardening of 50CrMo4 steel using continuous-wave laser and pulsed lasers with ms, ns, ps and fs pulse duration"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944141068672","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Atmospheric corrosion of Ni-advanced weathering steels in marine atmospheres of moderate salinity"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944260875392","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Inhibitive and adsorption behavior of thiadiazole derivatives on carbon steel corrosion in CO2-saturated oilfield produced water: Effect of substituent group on efficiency"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544418648730112","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"High magnetic saturation of undoped and cobalt-doped tin oxide prepared by sol–gel method annealed in air and nitrogen gas"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894068817920","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Unveiling the inhibition mechanism of an effective inhibitor for AZ91 Mg alloy"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894614351488","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Microstructure, metallurgical defects and hardness of Al–Cu–Mg–Li–Zr alloy additively manufactured by selective laser melting"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107369101493248","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Synthesis of polypyrrole-magnetite/silane coatings on steel and assessment of anticorrosive properties"}]},{"@id":"https://cir.nii.ac.jp/crid/1363107370281064832","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Laser surface texturing and related techniques for enhancing tribological performance of engineering materials: A review"}]},{"@id":"https://cir.nii.ac.jp/crid/1363388844127339264","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Effects of laser ablation coating removal (LACR) on a steel substrate: Part 1: Surface profile, microstructure, hardness, and adhesion"}]},{"@id":"https://cir.nii.ac.jp/crid/1363670319077816960","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Corrosion behavior of laser hardened 50CrMo4 (AISI 4150) steel: A depth-wise analysis"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951794881830400","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Shear band and α′-martensite induced by stress in laser melting carbide-free bainite layer"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233268314797824","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Application of laser ablation in adhesive bonding of metallic materials: A review"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233270164889088","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Production of corrosion-resistant 316L stainless steel clads on carbon steel using powder bed fusion-selective laser melting"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205351186048","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A STUDY OF PARTIAL REPAIR PAINTING FOR WEATHERING STEEL BRIDGE"},{"@language":"ja","@value":"耐候性鋼橋梁の防食補修塗装法の実施に関する一考察"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681236984192","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"塗膜下腐食の発生と進行"},{"@language":"en","@value":"Corrosion Initiation and Propagation under Paint Films"},{"@language":"ja-Kana","@value":"トマクカ フショク ノ ハッセイ ト シンコウ"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2009737443"},{"@type":"CROSSREF","@value":"10.2208/jscejseee.78.2_213"}]}