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Influences of Sr(OH)2 on the Structure and Corrosion Resistance of Micro-Arc Oxidation Coatings Formed on TC4 Titanium Alloy
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-07 DOI: 10.1002/maco.202414621
Qiming Luo, Shaolan Yang, Ping Wang, Fengyu Sun, Manlan Zhu
{"title":"Influences of Sr(OH)2 on the Structure and Corrosion Resistance of Micro-Arc Oxidation Coatings Formed on TC4 Titanium Alloy","authors":"Qiming Luo,&nbsp;Shaolan Yang,&nbsp;Ping Wang,&nbsp;Fengyu Sun,&nbsp;Manlan Zhu","doi":"10.1002/maco.202414621","DOIUrl":"https://doi.org/10.1002/maco.202414621","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to improve the comprehensive properties of TC4 titanium alloy, micro-arc oxidation (MAO) coating is prepared on the surface of a TC4 substrate in a basic electrolyte with varying concentrations of Sr(OH)<sub>2</sub>. The surface morphology, phase composition, element distribution, and corrosion resistance of MAO coatings are analyzed by scanning electron microscopy, X-ray diffraction, an energy-dispersive spectrometer, the electrochemical test, and the erosion–corrosion test. The results show that the voltage of the MAO process increases and then decreases; the surface morphology and density of the coatings are greatly improved after doping Sr(OH)<sub>2</sub>. When the concentration of Sr(OH)<sub>2</sub> is 0.6 g L<sup>−1</sup>, the thickness, hardness, and adhesion strength of the coating reach the maximum values of 37.04 μm, 836.2 HV, and 21.8 N, respectively. At this time, the wear resistance and corrosion resistance are the best, and the friction coefficient and the corrosion rate are the lowest: 0.3352 and 1.04 × 10<sup>−10</sup> mm a<sup>−1</sup>, respectively.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 3","pages":"424-435"},"PeriodicalIF":1.6,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding the Effect of Corrosion Resistance in Welded AA2198-T8 Alloy: Microstructural-Electrochemical Insights
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414545
Caruline de Souza C. Machado, João V. S. Araujo, José W. C. Hernández, Mariana X. Milagre, Oscar M. P. Ramirez, Hercílio G. de Melo, Sajid Farooq, Isolda Costa
{"title":"Understanding the Effect of Corrosion Resistance in Welded AA2198-T8 Alloy: Microstructural-Electrochemical Insights","authors":"Caruline de Souza C. Machado,&nbsp;João V. S. Araujo,&nbsp;José W. C. Hernández,&nbsp;Mariana X. Milagre,&nbsp;Oscar M. P. Ramirez,&nbsp;Hercílio G. de Melo,&nbsp;Sajid Farooq,&nbsp;Isolda Costa","doi":"10.1002/maco.202414545","DOIUrl":"https://doi.org/10.1002/maco.202414545","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, we explore the corrosion resistance of AA2198-T8 alloy in friction stir-welded zones, focusing on microstructure changes and resulting corrosion susceptibility. Macrogalvanic coupling effects are observed in weldment under corrosive conditions, particularly in the welding joint (WJ), heat-affected zones, and base metal (BM). Severe localized corrosion is prevalent in anodic zones, revealing intricate trenching patterns around micrometric particles in cathodic domains. Investigating isolated zones exposes SLC across all welding-affected regions and BM, underscoring the involvement of microgalvanic cells in corrosion. The novel utilization of a syringe cell as an electrochemical tool proves to be instrumental in delineating the electrochemical characteristics of welding testing zones. Notably, stir zone within WJ emerges as the region depicting the lowest corrosion resistance, a critical finding substantiated by localized electrochemical impedance spectroscopy. These insights into the interplay of electrochemical phenomena and microstructural attributes have implications for advancing corrosion mitigation strategies and alloy engineering in materials science.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"326-336"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigation and In Vitro Studies of a ZrO2/g-C3N4 Composite Coated on 316L Stainless Steel for Biomedical Applications
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414525
Manoja Tharmaraj, Abinaya Radhakrishnan, Anuradha Ramani, Nagarajan Srinivasan
{"title":"Investigation and In Vitro Studies of a ZrO2/g-C3N4 Composite Coated on 316L Stainless Steel for Biomedical Applications","authors":"Manoja Tharmaraj,&nbsp;Abinaya Radhakrishnan,&nbsp;Anuradha Ramani,&nbsp;Nagarajan Srinivasan","doi":"10.1002/maco.202414525","DOIUrl":"https://doi.org/10.1002/maco.202414525","url":null,"abstract":"<div>\u0000 \u0000 <p>The advancement of smart coatings for bioimplants has yielded a combination of biocompatibility and corrosion resistance. 316L stainless steel (316LSS) is a commonly used commercial implant, but it has limitations in biocompatibility and durability, which hinders the widespread utilization of 316LSS alloys. In this study, the 316LSS alloy is coated with a mixture of zirconium dioxide (ZrO<sub>2)</sub>, prepared using the sol–gel method, and graphitic carbon nitride (g-C<sub>3</sub>N<sub>4</sub>), synthesized by thermal polymerization. XRD and Raman analyses confirmed the crystal structure and purity of the synthesized samples. The corrosion resistance property was assessed using OCP, POL, and PEIS. The findings demonstrate that the ZrO2/g-C<sub>3</sub>N<sub>4</sub>-coated 316LSS shows significantly enhanced corrosion resistance and biocompatibility in a simulated body fluid. The in vitro bioactivity test reveals that the ZrO<sub>2</sub>/g-C<sub>3</sub>N<sub>4</sub> coating leads to the formation of an apatite layer over the surface of 316LSS. The elemental composition of the HAP deposition was confirmed by Raman analysis. The results suggested that the ZrO2/g-C<sub>3</sub>N<sub>4</sub>–coated 316LSS substrate is a promising material for use in biomedical applications.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"284-294"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ant-Nest Corrosion in Copper Pipes Triggered by Ethylene Vinyl Acetate-Based Adhesive
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414559
Luca Cozzarini, Lucia Marsich, Alessio Ferluga
{"title":"Ant-Nest Corrosion in Copper Pipes Triggered by Ethylene Vinyl Acetate-Based Adhesive","authors":"Luca Cozzarini,&nbsp;Lucia Marsich,&nbsp;Alessio Ferluga","doi":"10.1002/maco.202414559","DOIUrl":"https://doi.org/10.1002/maco.202414559","url":null,"abstract":"<p>Corrosion of condenser circuits in refrigeration systems significantly impacts appliance reliability and longevity. This study investigates an unreported cause linked to changing adhesive materials during copper pipe assembly. Transitioning from a polyethylene-based adhesive to one containing ethylene vinyl acetate caused unexpected perforation of copper coils within months. We hypothesized that even trace amounts of acetic acid, a byproduct of the latter adhesive, trigger a peculiar localized morphology known as “ant-nest corrosion.” We propose using ethylene vinyl acetate-free adhesives to prevent this issue in refrigeration systems.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"316-325"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414559","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synergistic Effect of Sn Doping in TiO2 Nanoparticles as an Additive in Anti-Corrosion Coatings
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-06 DOI: 10.1002/maco.202414492
Fariza Abdul Rahman, Wan Jefrey Basirun, Mohd Rafie Johan
{"title":"Synergistic Effect of Sn Doping in TiO2 Nanoparticles as an Additive in Anti-Corrosion Coatings","authors":"Fariza Abdul Rahman,&nbsp;Wan Jefrey Basirun,&nbsp;Mohd Rafie Johan","doi":"10.1002/maco.202414492","DOIUrl":"https://doi.org/10.1002/maco.202414492","url":null,"abstract":"<div>\u0000 \u0000 <p>Corrosion is a major problem and protective coatings offer an effective solution. However, organic coatings are often associated with microcracks caused by the evaporation of solvents during coating preparation. This study investigates the use of titanium dioxide (TiO<sub>2</sub>) nanoparticles as a coating additive to protect mild steel surfaces. Additionally, doping TiO<sub>2</sub> with tin (Sn) is believed to enhance its properties due to the reduced size of the nanoparticles. These nanoparticles were synthesised using the sol–gel method and subjected to various analyses. The coated mild steel samples were prepared using the dip-coating method and immersed in 3.5 wt.% sodium chloride (NaCl) solution for 30 days. Electrochemical impedance spectroscopy (EIS) and Tafel polarisation showed that the Sn-doped TiO<sub>2</sub> nanoparticles as an additive improved the corrosion resistance, as evidenced by a positive shift in corrosion potential (<i>E</i><sub>corr</sub>) and reduced corrosion current density (<i>I</i><sub>corr</sub>).</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 2","pages":"295-304"},"PeriodicalIF":1.6,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143362300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Masthead: Materials and Corrosion. 10/2024 刊头：材料与腐蚀10/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470102
{"title":"Masthead: Materials and Corrosion. 10/2024","authors":"","doi":"10.1002/maco.202470102","DOIUrl":"https://doi.org/10.1002/maco.202470102","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 10","pages":"1253"},"PeriodicalIF":1.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470102","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cover Picture: Materials and Corrosion. 10/2024 封面图片：材料与腐蚀10/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470101
Daniel Blücher, Torstein Lange, Judit Sandquist, Inge Saanum, Mikko Uusitalo
{"title":"Cover Picture: Materials and Corrosion. 10/2024","authors":"Daniel Blücher,&nbsp;Torstein Lange,&nbsp;Judit Sandquist,&nbsp;Inge Saanum,&nbsp;Mikko Uusitalo","doi":"10.1002/maco.202470101","DOIUrl":"https://doi.org/10.1002/maco.202470101","url":null,"abstract":"<p><b>Cover:</b></p><p>Optical microscopy images of as tested C-276 C-rings. Pitting corrosion was evident on the stressed inner edge of the C-rings and on the surface. A more detailed analysis showed that also intercrystalline corrosion had taken place with the loss of occasional grains because of the applied stress in combination with corrosion.</p><p>More detailed information can be found in: <i>Daniel Blücher, Torstein Lange, Judit Sandquist, Inge Saanum, Mikko Uusitalo</i>, Corrosion performance of different alloys exposed to HTL conditions—a screening study, <i>Materials and Corrosion</i> <b>2024</b>, <i>75</i>, 1258.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 10","pages":"1251"},"PeriodicalIF":1.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contents: Materials and Corrosion. 10/2024 内容：材料与腐蚀。10/2024
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-10-03 DOI: 10.1002/maco.202470103
{"title":"Contents: Materials and Corrosion. 10/2024","authors":"","doi":"10.1002/maco.202470103","DOIUrl":"https://doi.org/10.1002/maco.202470103","url":null,"abstract":"","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"75 10","pages":"1254-1257"},"PeriodicalIF":1.6,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202470103","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142429047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optical Surface Roughness Estimation Using Artificial Intelligence
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-09-29 DOI: 10.1002/maco.202414564
Jacob Maxa, Mathias Nowottnick
{"title":"Optical Surface Roughness Estimation Using Artificial Intelligence","authors":"Jacob Maxa,&nbsp;Mathias Nowottnick","doi":"10.1002/maco.202414564","DOIUrl":"https://doi.org/10.1002/maco.202414564","url":null,"abstract":"<p>A system for analysing steel plates is presented for an application in the wind power industry. The objective of the system is to assess the surface roughness as a preliminary step for the application of an anti-corrosion coating. A number of noncontact sensor systems were considered, with the laser triangulation scanner proving to be the optimal solution. The samples are analysed in a test stand and the roughness is measured with this optical system. At the same time, the surface is recorded with a CMOS camera. An AI model is created from the sensor fusion of both systems, which can classify individual segments of the surface as well or poorly blasted. In the following step, the surface roughness is estimated as the <i>R</i><sub>z</sub> parameter by another AI model. An error of less than 6 μm is achieved.</p>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"188-196"},"PeriodicalIF":1.6,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/maco.202414564","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143120912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Simulation on Cathodic Protection Potential Distribution Along Horizontal Directional Drilling Pipe
IF 1.6 4区 材料科学
Materials and Corrosion-werkstoffe Und Korrosion Pub Date : 2024-09-20 DOI: 10.1002/maco.202414513
Dawei Zhuang, Yanxia Du, Dezhi Tang, Chen Du
{"title":"Numerical Simulation on Cathodic Protection Potential Distribution Along Horizontal Directional Drilling Pipe","authors":"Dawei Zhuang,&nbsp;Yanxia Du,&nbsp;Dezhi Tang,&nbsp;Chen Du","doi":"10.1002/maco.202414513","DOIUrl":"https://doi.org/10.1002/maco.202414513","url":null,"abstract":"<div>\u0000 \u0000 <p>Evaluating the cathodic protection (CP) effectiveness of horizontal directional drilling (HDD) pipe is a significant technical challenge, due to the feasibility of testing only in shallow buried areas at entry/exit extremities, and not in deeply buried areas or the crossing section of the pipe. Numerical simulation provides a method to evaluate the CP effectiveness of HDD pipes. To improve the accuracy of potential distribution along the HDD pipe, it is necessary to adopt appropriate boundary conditions of the HDD pipe and accurate holiday models of coating. A specialized deep well polarization test device was designed and employed in the field to obtain the actual polarization characteristics as the boundary condition of the HDD pipe at buried depths ranging from 2 to 25 m. The result revealed that the polarization characteristics of HDD pipe in various depths were different and the potential distribution of the actual situation was greatly different from the potential distribution of the shallow aerobic soil. The potential distribution along the HDD pipe was analyzed in two types of holiday models. The results could be used as a reference for the CP effectiveness evaluation of HDD pipes.</p></div>","PeriodicalId":18225,"journal":{"name":"Materials and Corrosion-werkstoffe Und Korrosion","volume":"76 1","pages":"29-42"},"PeriodicalIF":1.6,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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