{"title":"Synthesis of Bio-Based NP-GLIDE Coatings for Easy-to-Clean Applications","authors":"Utkarsha Gwalwanshi, Harshala Kapadane, Ravindra Puri, Uday Bagale, Jitendra Narkhede, Pawan Meshram","doi":"10.1134/S2070205125700042","DOIUrl":"10.1134/S2070205125700042","url":null,"abstract":"<p>Efforts to produce environmentally friendly surface coatings with easy-to-clean qualities have gained momentum due to their ability to save water and chemicals while improving surface hygiene. nanopools of grafted lubricating layer for dewetting enablement (NP-GLIDE) coatings represent an innovative approach in surface engineering, combining nanoparticle technology with a unique polymer matrix. The present study focuses on the synthesis of bio-based NP-GLIDE coatings designed for easy-to-clean applications, with the goal of providing sustainable alternatives for a variety of sectors. In this work polyester-based coatings are formulated from itaconic acid as a bio-based resource, butane diol and it also contains H-polydimethylsiloxane (H-PDMS) as another diol to provide low surface energy. The synthesis procedure comprises grafting of PDMS onto a polyester chain by chemical pathways, further crosslinking with polyisocyanates resulting in coatings with tailored surface qualities that are easy to clean. The addition of PDMS in the polymer matrix helps in increasing the surface roughness and ultimately the hydrophobicity of the coatings. The synthesized resin and its coatings were examined using several analytical methods, including FTIR, NMR, DSC, TGA, SEM and contact angle. The contact angle study reveals the increase in contact angle from 56.68° of coating without PDMS to 105.25° of the coating with highest PDMS content. The SEM analysis also confirms the formation of nano-pools of PDMS which helps in creating a self-lubricating layer thus preventing adhesion of contaminants and facilitating their removal with minimal effort. The stain test showed that the coatings have good resistance to oil, inks and lipstick with the increase in content of PDMS. The cured coatings were further analyzed for general coating qualities in order to examine their performance properties.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"61 1","pages":"99 - 112"},"PeriodicalIF":0.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166953","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}
{"title":"Investigation of Corrosion Behavior of High Entropy Alloy Coated Ductile Iron by Electro Spark Deposition (ESD) Method","authors":"Yusuf Kayali","doi":"10.1134/S2070205125700078","DOIUrl":"10.1134/S2070205125700078","url":null,"abstract":"<p>In order to increase the service life of ductile iron (DI) components, various coating methods are used to improve surface properties such as hardness, wear resistance, and corrosion resistance. In recent years, the electrospark deposition (ESD) method has become a preferred surface coating process. This is due to its numerous advantages, including simple equipment and ease of use, strong metallurgical bonding, environmental friendliness, and cost-effectiveness. In this study, a high-entropy alloy was produced on unalloyed ductile iron using the ESD method at different voltages. The microstructures of the high-entropy alloy-coated ductile iron were examined, and properties such as micro hardness, layer thickness, and corrosion resistance were evaluated. To characterize the microstructure and composition of the coatings, optical microscopy, scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX) analyses were performed. The results showed that the corrosion resistance of the Ductile iron coated with the high-entropy alloy increased. The best corrosion resistance and homogeneous coatings were obtained at upper voltages.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"61 1","pages":"146 - 160"},"PeriodicalIF":0.8,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166954","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}
{"title":"Retraction Note: Dynamic Mechanical and Electrochemical Analysis of Newly Synthesized Polyurethane/CuO–NiO Mixed Metal Oxide Nanocomposite Coated Steel in 3.5% NaCl Solution","authors":"Joseph Raj Xavier","doi":"10.1134/S2070205125010010","DOIUrl":"10.1134/S2070205125010010","url":null,"abstract":"","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"61 1","pages":"255 - 255"},"PeriodicalIF":0.8,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145168711","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}
{"title":"Electrodeposition and Electrocatalytic Study of Ni–Co Alloy Coatings","authors":"Yathish Rai T., A. Chitharanjan Hegde","doi":"10.1134/S2070205124702514","DOIUrl":"10.1134/S2070205124702514","url":null,"abstract":"<p>The present work focusses on the fabrication of new Ni–Co electrolyte for the development of Ni–Co electrocatalysts for water splitting application. All the Ni–Co alloy coatings were deposited from an acid sulphate bath and their electrocatalytic activity was tested in 1 M KOH. The Ni–Co alloys developed at range of current density from 3.0 to 6.0 A dm<sup>–2</sup> were found to be good electrode materials for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), as demonstrated by cyclic voltammetry (CV) and chronopotentiometry (CP) methods. The Ni–Co alloy deposits which are catalytically active for HER are found to be inactive for OER and vice versa. The change in surface appearance, composition, and the phase structure of all developed coatings were analysed using instrumental techniques like scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD), respectively.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1084 - 1093"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698563","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}
{"title":"Effect of Sintering Time on the Corrosion Resistance of PTFE Coatings on AZ31 Mg Alloy","authors":"Di Liu, Qing Xiang, Yu Fang, Yuheng Cui, Qin Zou, Zhen Wang, Daixiong Zhang","doi":"10.1134/S2070205124702472","DOIUrl":"10.1134/S2070205124702472","url":null,"abstract":"<p>Corrosion is one of the key technical problems impeding the widespread use of magnesium (Mg) and its alloys. Consequently, enhancing the corrosion resistance of Mg alloys is an urgent issue that necessitates immediate attention in their applications. Polytetrafluoroethylene (PTFE), often termed the ‘king of plastics’ because of its exceptional chemical inertness and non-reactivity, forms coatings that effectively shield metal substrates from corrosive environments. This capability substantially reduces corrosion rates, underscoring its considerable potential in corrosion prevention. In this study, PTFE coatings were successfully prepared on Mg–3Al–1Zn (AZ31) alloy sheets through electrophoretic deposition (EPD). The coatings underwent sintering treatments of varying durations, and their corrosion resistance properties were systematically evaluated. The results indicate that sintering duration critically influences the microstructural morphology of the PTFE coatings; extending the sintering duration within a specific range enhances the microstructure’s compactness. Furthermore, the study examined the corrosion behavior of Mg alloys coated with sintered PTFE in a 3.5 wt % NaCl solution, where the corrosion resistance of the sintered PTFE-coated AZ31 was significantly enhanced. Notably, coatings sintered for 14 h exhibited the highest corrosion resistance, with the corrosion current density decreasing from 4.05 × 10<sup>–5</sup> A cm<sup>–2</sup> for the bare AZ31 to 1.20 × 10<sup>–7</sup> A cm<sup>–2</sup> for the sintered PTFE-coated AZ31. Concurrently, the charge transfer resistance increased significantly from 227 to 2.72 × 10<sup>5</sup> Ω cm<sup>2</sup>. The coatings achieved a contact angle exceeding 123° and an adhesion rating of 5B. This offers a novel approach for mitigating corrosion in Mg and its alloys.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1120 - 1135"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698568","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}
{"title":"High Temperature Oxidation and Surface Microstructure Evolution of Nickel-Based Superalloy GH3039 via Aluminized Embedding","authors":"Jiantao Wang, Conglin Zhang, Yaqi Liu, Binghao Dong, Xiyue Xing","doi":"10.1134/S207020512470254X","DOIUrl":"10.1134/S207020512470254X","url":null,"abstract":"<p>This study investigates the effect of an aluminized coating on the oxidation resistance of GH3039 superalloy. A powder embedding technique at 900°C with 60 wt % aluminum was employed to prepare the coating. The phase composition and surface morphology of oxidation products were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM). Untreated and aluminized samples were subjected to oxidation at 800, 900, and 1000°C for 100 h. Post-treatment, the GH3039 alloy exhibited a uniformly distributed aluminized layer about 90 μm thick. This layer comprised three distinct sub-layers: a top layer with Ni<sub>2</sub>Al<sub>3</sub> and minor NiAl<sub>3</sub> phases, a middle layer of mainly Ni<sub>2</sub>Al<sub>3</sub>, and a β-NiAl phase-rich bottom layer. Oxide weight measurements indicated an initial rapid increase followed by a significant reduction at high temperatures, primarily due to Cr<sub>2</sub>O<sub>3</sub> volatilization into gaseous CrO<sub>3</sub>. Oxidation curves for the aluminized samples showed reduced and stable weight gain patterns, adhering mostly to the parabolic law with no further increase at advanced stages. The untreated samples presented a porous oxide film with complex components including Cr<sub>2</sub>O<sub>3</sub>, NiCr<sub>2</sub>O<sub>4</sub>, TiO<sub>2</sub>, which adversely affected their oxidation resistance. In contrast, the aluminized samples predominantly displayed an Al<sub>2</sub>O<sub>3</sub> film that transitioned from flaky θ-Al<sub>2</sub>O<sub>3</sub> to a compact α-Al<sub>2</sub>O<sub>3</sub> structure at increased temperatures, thereby significantly enhancing the alloy’s resistance against high-temperature oxidation.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1136 - 1146"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698569","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}
Farhad Mohsenifar, Hadi Ebrahimifar, Ahmad Irannejad
{"title":"Investigation of Electrodeposited Mn–Co–Y2O3 Coating on Crofer 22 APU for the SOFC Interconnect Application","authors":"Farhad Mohsenifar, Hadi Ebrahimifar, Ahmad Irannejad","doi":"10.1134/S2070205124702496","DOIUrl":"10.1134/S2070205124702496","url":null,"abstract":"<p>The electrodeposition technique was successfully used for the co-deposition of Mn and Co metals and Y<sub>2</sub>O<sub>3</sub> particles on Corofer 22 APU interconnects. The uncoated and Mn–Co–Y<sub>2</sub>O<sub>3</sub>-coated samples were oxidized in an electric furnace for 500 h at 800°C. The surface morphology and phase structure of these samples were examined by field emission scanning electron microscopy (FESEM) and XRD analysis, respectively. The electrical conductivity of the samples was investigated by measuring area specific resistance. The results showed that the weight gain of uncoated and Mn–Co–Y<sub>2</sub>O<sub>3</sub>-coated samples after isothermal oxidation for 500 h was 0.52 and 0.4 mg cm<sup>–2</sup>, respectively. Microscopic investigations demonstrated that a non-continuous thin oxide scale forms underneath the applied coating, while high outward diffusion of Fe, Mn, and Cr occurred in uncoated steel after 500 h of oxidation at 800°C. Findings also implied that the applied coating significantly improve the electrical conductivity of steel interconnects after long-term oxidation at high temperatures.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1033 - 1049"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698460","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}
{"title":"Physical Properties of NiFeS2 Thin Films Prepared by Spray Pyrolysis Method","authors":"A. Mhamdi","doi":"10.1134/S2070205124702484","DOIUrl":"10.1134/S2070205124702484","url":null,"abstract":"<p>This work focuses on the characterization and fabrication of iron–nickel–sulfide (FeNiS<sub>2</sub>) thin films made via chemical spray pyrolysis. The quality of the films was assessed using a variety of physicochemical characterization methods, including optical and electrical characteristics, energy dispersive X-ray analysis (EDX), X-ray diffraction, and scanning electron microscopy. The purity of the NiFeS<sub>2</sub> thin films and their good structure in accordance with the cubic structure (<i>Fm</i>3<i>m</i>) were determined by the structural studies. Finally, after examining the practical results of optical and electrical properties, it was determined that NiFeS<sub>2</sub> thin film has a number of benefits and can be applied in a number of settings, including metal-air batteries, supercapacitors, solar cells, and electrocatalysts.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1064 - 1068"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698458","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}
{"title":"Investigation of Mild Steel Corrosion Inhibition with Tamarindus indica Fiber Extract in 0.5 M Trichloroacetic Acid: Adsorption, Antifouling, Electrochemical and DFT Studies","authors":"Baluchamy Tamilselvi, Durvas Seshian Bhuvaneshwari, Sethuramasamy Padmavathy, Varatharaj Rajapandian, Periyakaruppan Karuppasamy","doi":"10.1134/S2070205124702538","DOIUrl":"10.1134/S2070205124702538","url":null,"abstract":"<p>The as-extracted <i>Tamarindus indica</i> fiber (TIF) extract and its structural insights were analyzed successfully by spectral, electrochemical, analytical and theoretical techniques. The maximum corrosion inhibition efficiency (90.16%) was found by weight loss technique at 308 K. Monolayer adsorption was found and it obeyed the Langmuir adoption model. The –∆<i>H</i>* values support an exothermic process and –∆<i>S</i>* values confirm TIF adsorbed on mild steel surface. The –∆<i>G</i>° values reveal that the TIF adsorption on mild steel is a spontaneous process. Mixed type inhibition behavior was confirmed by Tafel plots. Increased trend of charge transfer resistance (<i>R</i><sub>ct</sub>) and decreased trend of double layer capacitance (<i>C</i><sub>dl</sub>) with increasing TIF (0–25 mg/L) concentration by Nyquist plots. FTIR and UV-Visible result confirms the mild steel-TIF extract complex formation. FE-SEM, EDAX, mapping analysis and XPS study supports the adsorption of TIF extract on mild steel surface. DFT study suggests that the biomolecules present in TIF extract is responsible for the formation mono adsorption layer on mild steel surface. An appropriate mechanism for mild steel corrosion inhibition with TIF extract in 0.5 M TCA was proposed.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1200 - 1221"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698661","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}
{"title":"Effect of Heat Treatment on Corrosion Resistance of Electroless Duplex Ni–P/Ni–B Coatings","authors":"Gökçe Dil, Behiye Yüksel, Faiz Muhaffel, İhsan Gökhan Serin, Ergin Kosa, Ali Gökşenli","doi":"10.1134/S2070205124702447","DOIUrl":"10.1134/S2070205124702447","url":null,"abstract":"<p>As-plated and heat-treated Ni–P, Ni–B, and Ni–P/Ni–B coatings (Ni–P as an internal layer) on steel by electroless plating and their morphology, microstructure, and corrosion performance were evaluated in this study. Scanning electron microscopy analysis demonstrated that all coatings are uniform and adhesion between the substrate and coating was good. Ni–P and Ni–B coatings were amorphous-like structures in their as-plated condition, and by applying heat treatment nickel fully crystallized, nickel borides and nickel phosphides were formed. Immersion tests in 10% HCl and 5% H<sub>2</sub>SO<sub>4</sub> solutions and potentiodynamic polarisation measurements in 3.5% NaCl aqueous solution were applied to investigate the corrosion resistance of the coatings. The results demonstrated that all coatings exhibit better corrosion performance than the substrate steel. Applying heat treatment did not change the corrosion resistance of Ni–P coating, conversely, heat treatment had a dominant positive effect on the corrosion performance of Ni–B and a minor effect on Ni–P/Ni–B duplex coatings.</p>","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1094 - 1103"},"PeriodicalIF":1.1,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698562","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}