Surface & Coatings Technology最新文献

{"title":"Evaluation of mechanical, metallurgical, and hot corrosion-erosion behavior of plasma sprayed Ni22Cr10Al0.8Y/30 %Cr3C2 /10 %h-BN/10 %Mo composite coating","authors":"Virupakshappa Lakkannavar ,&nbsp;K.B. Yogesha ,&nbsp;C. Durga Prasad ,&nbsp;Amit Tiwari ,&nbsp;K. Vanitha ,&nbsp;Piyush Kumar Soni","doi":"10.1016/j.surfcoat.2025.131730","DOIUrl":"10.1016/j.surfcoat.2025.131730","url":null,"abstract":"<div><div>In this work, plasma-sprayed coatings at high temperatures are examined for microstructure, corrosion, and erosion behavior. Utilized as a feedstock material for plasma spraying, the coatings were composed of a blend of Ni22Cr10Al0.8Y, Cr₃C₂ h-BN, and Mo in varying weight proportions. As the substrate material for coating, ASTM A213, T22 boiler steel was employed. In a liquid salt environment with Na₂SO₄–60%V₂O₅, thermocyclic hot corrosion studies were conducted for 50 cycles at 700 °C on both bare and coated steels. Thermogravimetric analysis was used to evaluate the hot corrosion kinetics, and the erosion properties of the Ni22Cr10Al0.8Y/Cr₃C₂/h-BN/Mo composite coating that was plasma-sprayed onto T22 boiler steel alloy were investigated. An air jet erosion tester was used for this assessment at three different temperatures (200 °C, 400 °C, and 600 °C) with impingement angles of 30° and 90° and a velocity of 40 m/s. Microhardness and microstructure analyses were performed on the coated samples. For characterization, this investigation included energy-dispersive spectroscopy, scanning electron microscopy (SEM), X-ray mapping, and X-ray diffraction (XRD). The results of the study showed that, in comparison to the uncoated substrate, the Ni22Cr10Al0.8Y/Cr₃C₂/h-BN/Mo coated substrates exhibited 89 % higher resistance to hot corrosion and, at a 90° impact angle, the coating exhibited 55 % higher erosion resistance than the uncoated substrate. In contrast to the uncoated steels, the coated substrate had lower parabolic rate constant values and adhered to the parabolic rate law of oxidation. Because of the high stability of molybdenum and chromium carbides as well as the production of a protective oxide layer of nickel, chromium, B₂O₃, and MoO₂ oxide at high temperatures, there is an enhanced resistance to erosion and corrosion.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131730"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laser-Directed Energy Deposition of AISI H13 on copper‑beryllium alloy substrates with Ni buffer","authors":"Zhao Zhao ,&nbsp;Matteo Perini ,&nbsp;Massimo Pellizzari","doi":"10.1016/j.surfcoat.2025.131772","DOIUrl":"10.1016/j.surfcoat.2025.131772","url":null,"abstract":"<div><div>Steel/copper alloy multi-material structures fabricated via metal additive manufacturing hold significant promise for applications such as molding and tooling. However, the formation of a steel/copper alloy interface is highly susceptible to solidification cracking. In this study, AISI H13 cladding was deposited on copper‑beryllium alloy substrates using Laser-Directed Energy Deposition. A commercial pure Ni buffer was employed to mitigate cracking, as evidenced by the crack-free Ni-buffered specimens. The effectiveness of Ni in suppressing cracking can be attributed to two key factors: (i) establishing a chemical composition gradient from copper‑beryllium to H13, thereby minimizing solidification cracking susceptibility across the entire composition range, and (ii) reducing residual stress caused by the mismatch in the coefficient of thermal expansion between H13 and copper‑beryllium. The solidification cracking susceptibility in the Fe-Cu-Ni ternary system was qualitatively assessed by calculating key solidification characteristic values, including the solidification temperature range and the amount of terminal liquid, using Scheil's model. Easton's solidification cracking model was validated as a reliable tool for quantitatively evaluating cracking susceptibility in the Fe-Cu-Ni system. Both approaches indicated that introducing a Ni buffer creates a path with low cracking susceptibility. The as-deposited H13 exhibited high microhardness (580–690 HV) compared to the copper‑beryllium alloy (400 HV), significantly enhancing the load-bearing capability. While softer materials such as in-situ tempered martensite, Ni buffer, and heat-affected zone negatively impact the load-bearing capacity, this can be restored by increasing the number of H13 layers. Based on the typical stress levels in injection molding dies, a 3 to 5 mm thick H13 cladding is deemed sufficient to protect mold surfaces made of copper alloys.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131772"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of pre-service heat treatments on microstructure and properties of atmospheric-plasma-sprayed Yb2SiO5 environmental barrier coating","authors":"Wenxiu Dong ,&nbsp;Jieyan Yuan ,&nbsp;Jingbo Duan ,&nbsp;Xiaoye Hu ,&nbsp;Xian Dang ,&nbsp;Kewei Li ,&nbsp;Xinyang Li ,&nbsp;Zhulin Huang ,&nbsp;Yue Li","doi":"10.1016/j.surfcoat.2025.131760","DOIUrl":"10.1016/j.surfcoat.2025.131760","url":null,"abstract":"<div><div>In this work, Yb₂SiO₅ coating was plasma sprayed, and the phase evolutions (such as recrystallization and isostructural monosilicate transformation) as well as the microstructural modification in this as-sprayed amorphous coating has been explored during thermal aging process. Results show that a pre-service heat treatment at temperatures ≥1200 °C is necessary to complete the transformations and to recover the mechanical and thermophysical properties of Yb₂SiO₅ coating. Furthermore, the water vapor corrosion behaviors of as-sprayed and heat-treated Yb₂SiO₅ coatings were evaluated at 1300 °C for 50–200 h. The Yb₂O₃ phase in coating preferably volatilizes, leaving a relatively dense reacted layer composed of Yb₂SiO₅ on the surface of all corroded Yb₂SiO₅ coatings. However, it is found although promoting crystallization and performance recovery of Yb₂SiO₅ coating, heat treatment exacerbates the steam corrosion to some extent by facilitating water vapor penetration along the enlarged and widened vertical microcracks.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131760"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 tribological properties of Fe40Mn20Cr20Ni20 high-entropy alloys with composition gradient coating after solid aluminizing","authors":"Fan Li ,&nbsp;Xi Jin ,&nbsp;Xuejiao Wang ,&nbsp;Huijun Yang ,&nbsp;Junwei Qiao","doi":"10.1016/j.surfcoat.2024.131721","DOIUrl":"10.1016/j.surfcoat.2024.131721","url":null,"abstract":"<div><div>Wear is one of the main ways of energy consumption in manufacturing industry. Improving the surface properties of the alloy can effectively improve this consumption. In this study, hot-rolled Fe₄₀Mn₂₀Cr₂₀Ni₂₀ HEA with FCC structure was aluminized by pack cementation method to form a multi-layer gradient coating with aluminized layer of 52 μm and interdiffusion layer of 21 μm. The microstructure, mechanical properties, growth kinetics and high temperature friction properties of the aluminized layer were analyzed. The hardness of aluminized HEA is higher than that of hot-rolled HEA, and the wear rate is very low at room temperature. With the increase of the temperature, the COF of hot-rolled HEA decreases gradually, yet the COF of aluminized HEA increases first and then decreases. At different temperatures, the wear mechanism of hot-rolled HEA is mainly adhesive wear, oxidation wear and abrasive wear. The wear mechanism of aluminized HEA is mainly abrasive wear, delamination wear and adhesive wear.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131721"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the wear resistance and thermodynamic stability of (MNbTaZrTi)N (M = Cr, Hf) high-entropy nitride coatings at elevated temperatures","authors":"Haiyang Yu ,&nbsp;Wenping Liang ,&nbsp;Qiang Miao ,&nbsp;Mengjuan Yin ,&nbsp;Hongmei Jin ,&nbsp;Yuanyuan Sun ,&nbsp;Yuehao Xu ,&nbsp;Xiangle Chang","doi":"10.1016/j.surfcoat.2025.131792","DOIUrl":"10.1016/j.surfcoat.2025.131792","url":null,"abstract":"<div><div>One of the major challenges faced by high-temperature titanium alloy components in applications is wear. Designing and preparing a highly wear-resistant coating remains a longstanding technical challenge. In this work, (MNbTaZrTi)N (M = Cr, Hf) high-entropy nitride coatings were developed on the basis of the (TaNbZr)N system using first-principles calculations. The effects of Cr and Hf on the thermodynamic stability and performance of nitride ceramics were systematically investigated. Additionally, (MNbTaZrTi)N high-entropy nitride coatings were applied to titanium alloy surfaces via the double-glow plasma surface alloying technique, followed by high-temperature friction and wear tests. Research findings revealed that the addition of Cr and Hf enhanced both the mechanical properties and thermodynamic stability of nitride ceramics. The (MNbTaZrTi)N high-entropy nitride ceramics exhibited better performance at high temperatures. Furthermore, the formed transition metal oxides at high temperatures significantly enhanced the friction performance of titanium alloy surfaces, leading to a tenfold reduction in the wear rate during ball-on-disc tests conducted at 700 °C (∼ 10⁻⁵ mm³/N•m). This study will offer valuable guidance for the design and creation of novel wear-resistant high-entropy nitride ceramic coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131792"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heterogeneous structural features of microplasma-sprayed hydroxyapatite splats revealed by TEM","authors":"Xiaomei Liu,&nbsp;Yanxin Dan,&nbsp;Jing Huang,&nbsp;Yi Liu,&nbsp;Ping Zhou,&nbsp;Shuangjie Wu,&nbsp;Hua Li","doi":"10.1016/j.surfcoat.2025.131749","DOIUrl":"10.1016/j.surfcoat.2025.131749","url":null,"abstract":"<div><div>Understanding the microstructure within thermal sprayed bioceramic splats is the key towards controlling the chemistry of coatings within their micro-zones for desired biomedical performance. In this study, the structural characteristics of microplasma sprayed hydroxyapatite splats at various locations were examined in detail using transmission electron microscopy. The hydroxyapatite splats, formed by partially melted particles on Ti6Al4V substrate, exhibit a hemispherical shape comprising an amorphous-crystalline hybrid structure of 2–13 nm in width at the splat-substrate interface region. At the splat center, submicron grains with dimensions ranging from 400 nm to 1.3 μm were observed, while a columnar structure, measuring 98–303 nm, was identified near the upper surface of the splat. Fully melted particles deposited at a short spraying distance produce disk-shaped splats, characterized by an ∼14 nm thick amorphous layer near the splat-substrate interface and a fine grain structure of 2–4 nm in diameter located near the splat center. The second splat deposited on the first splat shows a columnar structure, likely due to reduced heat transfer efficiency by the first splat. At a long spraying distance, fully melted particles generate splashed splats with a hemispherical central core surrounded by a solid ring. Observations indicate that splats with distinct microstructures form depending on the melting state and substrate temperature, offering valuable insights for developing targeted processing strategies to optimize the microstructure of bioceramic splats for enhanced biomedical performance.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131749"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143144194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wollastonite-forsterite composite coatings containing Mn on the plasma electrolytic oxidized Ti-6Al-4V alloy via spin coating","authors":"So-Yun Joo,&nbsp;Han-Cheol Choe","doi":"10.1016/j.surfcoat.2025.131797","DOIUrl":"10.1016/j.surfcoat.2025.131797","url":null,"abstract":"<div><div>In this study, the development of a novel composite coating for Ti-6Al-4V alloy dental implants, combining wollastonite (CaSiO₃) and forsterite (Mg₂SiO₄) with varying ratios of manganese (Mn) addition was investigated. The coating was designed to enhance osseointegration while addressing concerns about calcium (Ca²⁺) dissolution from wollastonite over time. Ti-6Al-4V alloy substrates were first treated with plasma electrolytic oxidation (PEO) to improve surface functionalization. The composite coating was then synthesized using the sol-gel method and applied via spin coating. The effects of Mn addition on surface characteristics were evaluated using FE-SEM, AFM, XRD, wettability tests, scratch tests, corrosion (PDP and EIS) tests, and in vitro testing. The results showed that Mn incorporation significantly influenced the coating's morphology, mechanical properties, corrosion resistance, and bioactivity. Among the tested concentrations, the 10 % Mn coating exhibited the best overall performance, achieving a balance of high corrosion resistance, enhanced mechanical stability, and superior bioactivity. The synergistic action of Mg²⁺, Mn²⁺, and Si⁴⁺ within the coating created an ideal environment for rapid and extensive hydroxyapatite (HA) growth. While higher Mn levels further promoted HA formation, they also maintained acceptable surface stability, demonstrating the potential for broader applications. The combined effects of wollastonite's rapid HA formation, forsterite's controlled dissolution, and Mn's additional nucleation sites make these coatings highly promising for applications requiring strong, long-lasting bone-bonding properties.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131797"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143142863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Novel diamond and TaC composite coatings for efficient heat dissipation in GaN semiconductor devices","authors":"Kesheng Guo ,&nbsp;Shuai Wu ,&nbsp;Lei Huang ,&nbsp;Lang Hu ,&nbsp;Xin Li","doi":"10.1016/j.surfcoat.2025.131784","DOIUrl":"10.1016/j.surfcoat.2025.131784","url":null,"abstract":"<div><div>This study addresses heat dissipation in GaN-based devices used in 5G, fast charging, and micro-LED displays. Due to GaN's low thermal conductivity, excessive heat generation leads to reduced performance and shortened device lifespan. Diamond materials are explored for thermal management, but integrating polycrystalline diamond with GaN devices can compromise performance. This study examines the deposition process of tetrahedral amorphous carbon (ta-C) films on the surface of a GaN device using the filtered cathodic vacuum arc (FCVA) method. The resulting carbon film (sp3 content ∼55 %) was dense and poreless with a thickness of about 10–100 nm. Subsequently, a highly oriented diamond film was deposited using the microwave plasma chemical vapor deposition (MPCVD) method. The diamond film uniformly covers the ta-C layer, with a thickness of approximately 2.8 μm and a grain size of around 1 μm. Transient heat reflection measurements revealed that the thermal boundary resistance (TBR) of diamond/ta-C/GaN is about 13 m2K/GW. The ta-C surface forms ultra-nanocrystalline diamond (UNCD) under hydrogen plasma, which fuses with nanocrystalline diamond (NCD), reducing thermal resistance. This composite structure improves heat dissipation, offering a solution for power conversion, communications, and radar applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131784"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143142865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dimple prediction modelling in ultrashort laser processing: A benchmark study on ablation threshold determination methods and incubation models","authors":"Ainhoa Guinea,&nbsp;Andrea Aginagalde,&nbsp;Joseba Mendiguren,&nbsp;Eneko Saenz de Argandoña,&nbsp;Iñigo Llavori,&nbsp;Alaitz Zabala","doi":"10.1016/j.surfcoat.2024.131712","DOIUrl":"10.1016/j.surfcoat.2024.131712","url":null,"abstract":"<div><div>The appropriate selection of ultrashort laser processing parameters is a complex task in which prediction models based on the logarithmic ablation law derived from the Two-Temperature model are commonly used to minimize experimental effort. Although the model's accuracy depends on the threshold fluence (<span><math><msub><mi>F</mi><mi>th</mi></msub></math></span>) and energy penetration depth (<span><math><mi>δ</mi></math></span>) values used, which evolve with the number of pulses (<em>N</em>_p) due to the incubation effect, there is no consensus on the optimal determination method or incubation description. A benchmark on ablation threshold determination methods and incubation models was conducted on stainless steel to (i) analyse their effects on <span><math><msub><mi>F</mi><mi>th</mi></msub><mspace></mspace><mfenced><msub><mi>N</mi><mi>p</mi></msub></mfenced><mspace></mspace></math></span>and <span><math><mi>δ</mi><mspace></mspace><mfenced><msub><mi>N</mi><mi>p</mi></msub></mfenced></math></span> and (ii) evaluate the impact on diameter and depth prediction errors of multi-shot dimples. Four ablation threshold determination methods and four incubation models, along with their variants, were identified. This resulted in a total of 24 combinations, referred to as estimation approaches. For a single pulse, <span><math><msub><mi>F</mi><mi>th</mi></msub></math></span> varied up to 73 % depending on the estimation approach, whereas <span><math><mi>δ</mi></math></span> was less sensitive, with differences up to 40 %. Regarding prediction errors, they remained below 12 % for diameter across all estimation approaches. Depth prediction errors exhibited greater sensitivity, ranging from 11 % to 33 %. This study emphasizes the importance of the estimation approach used for both ablation threshold and incubation parameter determination and its impact on the multi-shot dimple prediction accuracy.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131712"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supercritical oxidation resistance of double-layer aluminized coating on Nickel alloy prepared by pack cementation aluminizing","authors":"Yang Wu ,&nbsp;Zhidong Zhang ,&nbsp;Jin Leng ,&nbsp;Chengzhe Gao ,&nbsp;Gang Huang ,&nbsp;Fudong Qi ,&nbsp;Tiecheng Lu ,&nbsp;Qiwu Shi","doi":"10.1016/j.surfcoat.2025.131728","DOIUrl":"10.1016/j.surfcoat.2025.131728","url":null,"abstract":"<div><div>Nickel-based alloys' widespread application in rigorous industrial environments makes surface protection a fundamental concern, yet their corrosion and oxidation resistance still need improvement in extreme conditions. Although the surface aluminizing has been proved to be an effective solution, designing advanced aluminized coating with superior performance remains to be investigated. In this work, we employed pack cementation aluminizing technology to deposit an aluminized coating on the surface of Inconel 625 alloy, and the oxidation resistance of coatings with different thicknesses under supercritical conditions were studied systematically. The 25 μm coating exhibits a single layer structure, while the 90 μm and 180 μm coatings present a double layer structure due to the different aluminum atoms concentrations across the diffusion path. The TEM morphology exhibited interlocking interface between the outer layer and inner layer, indicating strong bonding between the coating layers. Through the supercritical oxidation process, the failure mechanisms of the aluminizing coatings were explored. It was demonstrated that the 180 μm coating has excellent resistance to supercritical oxidation. Particularly, the coating transforms into a three-layer structure. An Al₂O₃ layer with thickness of around 10 μm was formed due the surface oxidation of the coating. The distribution of Al elements became increasingly uniform, negating the diffusion force arising from atomic concentration gradients. The Al₂O₃/aluminized alloy structure could endow the coating more stable oxidation resistance. This work provides fundamental insights for the fabrication and performances of aluminized coatings on alloys surface and would be significant for extending their service life in complex environments.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"497 ","pages":"Article 131728"},"PeriodicalIF":5.3,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}