Surface & Coatings Technology最新文献_第2页

A hierarchical micro/nanostructural coating loaded ZIF-8@RIS on Ti implants for NIR responsive antibacterial at mild temperature 负载ZIF-8@RIS的分层微/纳米结构涂层在Ti植入物上用于温和温度下的近红外响应抗菌

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-08 DOI: 10.1016/j.surfcoat.2025.132777

Xinchi Lin , Wei Wu , Hulin Liu , Peilin Wu , Jihua Nie , Xuehua Yuan , Yangkai Liu , Zilin Chen , Yunjie Xiang , Jing Li , En-Tang Kang , Ugo D'Amora , Liqun Xu , Xi Rao

{"title":"A hierarchical micro/nanostructural coating loaded ZIF-8@RIS on Ti implants for NIR responsive antibacterial at mild temperature","authors":"Xinchi Lin , Wei Wu , Hulin Liu , Peilin Wu , Jihua Nie , Xuehua Yuan , Yangkai Liu , Zilin Chen , Yunjie Xiang , Jing Li , En-Tang Kang , Ugo D'Amora , Liqun Xu , Xi Rao","doi":"10.1016/j.surfcoat.2025.132777","DOIUrl":"10.1016/j.surfcoat.2025.132777","url":null,"abstract":"<div><div>Titanium (Ti)-based biomedical implants are frequently associated with complications such as aseptic loosening and bacterial infection, both of which substantially reduce the overall success rate of implantation. In this study, a composite coating, consisting in ZIF-8, created through the coordination of zin ions (Zn<sup>2+</sup>) with 2-methylimidazole, loaded with risedronate sodium (HT/ZIF-8@RIS), was fabricated on pure Ti surfaces, using a two-step alkaline hydrothermal method. This coating simultaneously conferred antibacterial properties and enhanced osteogenic differentiation. Experimental results demonstrated that the HT/ZIF-8@RIS coating exhibited excellent photothermal antibacterial performance, effectively inhibiting bacterial biofilm formation at a mild temperature of ~50 °C. <em>In vitro</em> and <em>in vivo</em> experiments revealed that the HT/ZIF-8@RIS coating possessed good biocompatibility, and as-prepared coatings can be promising for osseointegration as the proliferation and differentiation of osteoblasts was significantly promoted <em>in vitro</em>. Further animal experiments confirmed that the implants with the HT/ZIF-8@RIS coating exhibited superior photothermal antibacterial properties without damaging surrounding tissues. The overall findings of this study offer an effective and promising strategy for improving the antibacterial efficacy and performance of Ti-based implants in clinical settings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132777"},"PeriodicalIF":6.1,"publicationDate":"2025-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270163","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}

引用次数: 0

Structure and tribo-mechanical properties of Si-containing ta-C thin films grown by cathodic arc evaporation 阴极电弧蒸发生长含硅ta-C薄膜的结构和摩擦力学性能

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-07 DOI: 10.1016/j.surfcoat.2025.132766

Nelson Filipe Lopes Dias , Dominic Stangier , Julia Urbanczyk , Gabriel Brune , Jörg Debus , Wolfgang Tillmann

{"title":"Structure and tribo-mechanical properties of Si-containing ta-C thin films grown by cathodic arc evaporation","authors":"Nelson Filipe Lopes Dias , Dominic Stangier , Julia Urbanczyk , Gabriel Brune , Jörg Debus , Wolfgang Tillmann","doi":"10.1016/j.surfcoat.2025.132766","DOIUrl":"10.1016/j.surfcoat.2025.132766","url":null,"abstract":"<div><div>The incorporation of silicon (Si) into tetrahedral amorphous carbon (ta-C) thin films is an effective strategy for improving the properties and expanding their application field. However, a key challenge lies in achieving controlled incorporation of low Si concentrations without significantly compromising hardness. To address this, graphite compound cathodes with 2.5 and 5 at.-% Si, as well as pure graphite, were employed as cathodes in a vertically arranged array of cathodic arc evaporators. This configuration enabled the deposition of ta-C:Si thin films on AISI M2 steel substrates with Si contents ranging from 0.1 to 6.6 at.-%.</div><div>The hardness of the ta-C:Si films decreases with increasing Si content, yet remains high at <em>H</em> ≈ 45 GPa even at the highest Si concentration. A high hardness of <em>H</em> ≈ 70 GPa is achieved at the lowest Si contents below 1 at.-%. The reduction in hardness is attributed to structural changes in the amorphous network revealed by Raman spectroscopy, which shows both an increased sp<sup>2</sup> fraction and a transformation from isolated olefinic sp<sup>2</sup> sites to more ordered aromatic-like configurations with rising Si concentration. Tribological tests reveal that high Si-containing ta-C:Si exhibits a shorter run-in phase and reduced wear of the steel counterpart compared to thin films with lower Si content. Additionally, a Si concentration of at least 5 at.-% ensures stable low coefficients of friction with <em>μ</em> < 0.2 over extended sliding distances. These findings highlight the importance of carefully control the Si content to adjust the tribo-mechanical performance of ta-C:Si thin films.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132766"},"PeriodicalIF":6.1,"publicationDate":"2025-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269495","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}

引用次数: 0

Fabrication of Ag-bearing stainless steel coatings using friction surfacing with lattice structured consumable bars 用摩擦堆焊法制备含银不锈钢涂层

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-06 DOI: 10.1016/j.surfcoat.2025.132758

Kun Liu , Guochong Rao , Shiye Li , Junfei Zhang , Lap Mou Tam , Kin Ho Lo , Hongze Wang , Valentino A.M. Cristino , Chi Tat Kwok

{"title":"Fabrication of Ag-bearing stainless steel coatings using friction surfacing with lattice structured consumable bars","authors":"Kun Liu , Guochong Rao , Shiye Li , Junfei Zhang , Lap Mou Tam , Kin Ho Lo , Hongze Wang , Valentino A.M. Cristino , Chi Tat Kwok","doi":"10.1016/j.surfcoat.2025.132758","DOIUrl":"10.1016/j.surfcoat.2025.132758","url":null,"abstract":"<div><div>This study explores the applicability of the integration of laser powder bed fusion (LPBF) with friction surfacing for the fabrication of Ag-bearing stainless steel coatings. The methodology is based on a comparative analysis of the microstructure, hardness, corrosion resistance and antibacterial efficacy of coatings deposited from friction surfacing using LPBFed lattice structured and pre-drilled commercial bars, both filled with the same pre-mixed AISI 316L stainless steel and pure Ag powder. The results indicated that the coatings deposited from both types of consumable bars showed an antibacterial efficacy above 99 %. In addition, the coatings deposited with LPBFed lattice structured consumable bars presented a more uniform distribution of fine Ag particles, reduced grain size, improved hardness and corrosion properties, illustrating the potential of this technique for the fabrication of thick coatings from the metallic materials with low mutual solubility.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132758"},"PeriodicalIF":6.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270156","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}

引用次数: 0

Thermal-barrier and radar-absorbing metacoating: Dual-scale thermal-electromagnetic manipulation via topology-optimized microarchitecture design 热障和雷达吸波：通过拓扑优化微架构设计的双尺度热电磁操纵

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-06 DOI: 10.1016/j.surfcoat.2025.132764

Yiping Li , Yucai Shan , Rui Liu , Shaozhuo Ding , Zihao Fan , Chi Zhang , Rifei Han , Rubing Zhang

{"title":"Thermal-barrier and radar-absorbing metacoating: Dual-scale thermal-electromagnetic manipulation via topology-optimized microarchitecture design","authors":"Yiping Li , Yucai Shan , Rui Liu , Shaozhuo Ding , Zihao Fan , Chi Zhang , Rifei Han , Rubing Zhang","doi":"10.1016/j.surfcoat.2025.132764","DOIUrl":"10.1016/j.surfcoat.2025.132764","url":null,"abstract":"<div><div>The increasing speeds of hypersonic aircraft and advancing X-/Ka-band fire-control radars impose stringent requirements on aircraft surface materials: thermal protection and multi-band radar stealth. Existing research has not achieved simultaneous integration of high-temperature stability, low thermal conductivity, and thermal expansion compatibility with multi-band radar-absorbing properties. To address this, a thermal-barrier and radar-absorbing (TB-RA) metacoating is proposed, which integrates the optimized thermal-barrier layer with topology-optimized radar-absorbing units, achieving dual-scale thermal-electromagnetic manipulation. With an ultra-thin profile of 1.5 mm, the metacoating achieves an effective absorption bandwidth (EAB, RL ≤ −5 dB) of 17.7 GHz at 1000 °C, maintaining full X-band functionality and 91 % Ka-band coverage. Furthermore, it achieves high-efficiency thermal protection through effective insulation (with thermal conductivity below 0.7 W·m<sup>−1</sup>·K<sup>−1</sup> from 25 to 1000 °C) and radiative cooling (emissivity exceeding 90 % in the atmospheric window). This study presents a novel strategy for integrated thermal protection and multiband radar stealth in hypersonic aircraft surface.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132764"},"PeriodicalIF":6.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269488","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}

引用次数: 0

Atomic-level insights into cold spray deposition of Cu-GNPs composite coatings Cu-GNPs复合涂层冷喷涂的原子水平研究

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-05 DOI: 10.1016/j.surfcoat.2025.132763

Pengfei Wu , Arash Kardani , Mabao Liu , Sara Bagherifard

{"title":"Atomic-level insights into cold spray deposition of Cu-GNPs composite coatings","authors":"Pengfei Wu , Arash Kardani , Mabao Liu , Sara Bagherifard","doi":"10.1016/j.surfcoat.2025.132763","DOIUrl":"10.1016/j.surfcoat.2025.132763","url":null,"abstract":"<div><div>Cold spray is a solid-state process with a high potential for deposition of nanocomposite powders without notable heat input. In the present work, molecular dynamics simulations are developed to explore how graphene distribution and the metallic particle morphology would influence the atomic scale bonding mechanisms of cold sprayed Cu-graphene nanoplatelet (GNPs) nanocomposite powders onto an Al substrate. Our analysis provides critical insights into the influence of cold spray process parameters and powder characteristics on interfacial behavior. Higher impact velocity flattens particles more, leading to deeper substrate penetration and greater crater formation, which can in turn improve adhesion strength. The distribution of graphene, whether aggregated, uniform, or randomly positioned around the metallic powder particle, is found to have a significant impact on the plastic deformation and deposition state of the nanocomposite particles. Furthermore, changing particle morphology from spherical to semispherical, besides altering flattening ratio and crater depths, also affects GNPs states at heterogeneous interfaces. These findings establish a mechanistic framework linking major powder parameters (velocity, morphology, GNP distribution) to cold spray deposition dynamics and interface characteristics.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132763"},"PeriodicalIF":6.1,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270157","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}

引用次数: 0

Improving biocompatibility and corrosion behavior of biodegradable zinc implant using a calcium zinc phosphate layer sealed by hydroxyapatite/polylactic acid 羟基磷灰石/聚乳酸密封磷酸钙锌层改善可生物降解锌植入体的生物相容性和腐蚀性能

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-04 DOI: 10.1016/j.surfcoat.2025.132760

Akbar Esmaeilnejad, Benyamin Yarmand

{"title":"Improving biocompatibility and corrosion behavior of biodegradable zinc implant using a calcium zinc phosphate layer sealed by hydroxyapatite/polylactic acid","authors":"Akbar Esmaeilnejad, Benyamin Yarmand","doi":"10.1016/j.surfcoat.2025.132760","DOIUrl":"10.1016/j.surfcoat.2025.132760","url":null,"abstract":"<div><div>The surface features of biodegradable zinc-based implants need to be improved for developing their applications in medicine. Hence, the effects of the calcium zinc phosphate layer and hydroxyapatite/polylactic acid sealant on zinc implants' biocompatibility and corrosion properties were investigated. The results from scanning electron microscopy and X-ray diffractometry revealed that porous petal-like clusters with a scholzite crystalline structure grew on the zinc substrate during phosphating and were well sealed with a hydroxyapatite/polylactic acid composite cover. Corrosion behavior evaluation using potentiodynamic polarization experiments proved that the corrosion rate was reduced by about 12 times and 26 times compared to bare zinc by applying the phosphate layer and hydroxyapatite/polylactic acid sealant, respectively. This improvement resulted from the increased resistance of the phosphate layer by post-sealing, proven by electrochemical impedance spectroscopy. The phosphate layer caused MG-63 osteoblastic cells to spread favorably on the scholzite clusters, while the sealing layer significantly enhanced the cell proliferation so that the cells covered the entire surface. Cytotoxicity findings clarified that cell viability was promoted to 99.8 ± 0.1 % compared to 76.2 ± 0.3 % on bare zinc. Overall, the sealed calcium zinc phosphate layer can beneficially improve the surface properties of biodegradable zinc-based implants.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132760"},"PeriodicalIF":6.1,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145270155","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}

引用次数: 0

Formation dynamics of composite Ni-graphite abradable coatings ni -石墨复合耐磨涂层的形成动力学

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-03 DOI: 10.1016/j.surfcoat.2025.132755

Juliane Ribeiro da Cruz , Sanjay Sampath

{"title":"Formation dynamics of composite Ni-graphite abradable coatings","authors":"Juliane Ribeiro da Cruz , Sanjay Sampath","doi":"10.1016/j.surfcoat.2025.132755","DOIUrl":"10.1016/j.surfcoat.2025.132755","url":null,"abstract":"<div><div>In this study, a fundamental understanding of the formation dynamics of Ni-graphite porous/friable overlay thermal spray coatings is investigated for clearance control in turbo-machinery. The concept relies on the coating providing abradability to yield tight tolerances, enabled by the unique microstructure. Although widely used, optimizing the microstructure of such dissimilar composite can be challenging. Particle transformation in flight is investigated through particle diagnostics and scanning electron microscopy analysis of the sprayed materials. Thermal and kinetic energy of particles were modified by changing current, argon flow and spray distance. Splats were categorized and quantified for each of the processing conditions, providing a more complete understanding of the coating composition. The coatings' mechanical response was assessed as a function on the elastic modulus and stresses, measured by the curvature method, and by superficial Rockwell hardness 15Y. Results show that Ni-cladded graphite particles undergo an important shape transformation characterized by the separation of Ni and graphite phases, which is strongly dependent on the processing parameters. In addition, the feedstock also undergoes various physicochemical transformations, including carbon solubilization in Ni, nickel carbide (Ni₃C) formation, graphite oxidation, graphite sublimation, nickel oxidation (NiO), nickel vaporization and surface graphitization of Ni-cladded graphite particles. This research shed light to better understand how Ni-graphite coatings are built and affected by processing parameters, contributing towards the engineering of more predictable Ni-Graphite abradable coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132755"},"PeriodicalIF":6.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269490","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}

引用次数: 0

Synergistic thermo-mechanical-driven microstructural evolution in AlTiN coatings and their friction–wear mechanisms against Si3N4 counterparts AlTiN涂层的协同热机械驱动显微组织演变及其与Si3N4涂层的摩擦磨损机制

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-03 DOI: 10.1016/j.surfcoat.2025.132756

Fangsheng Mei , Yang Yu , Min Chen , Jiangxiong Gao , Jianguo Lin , Tangqing Wu

{"title":"Synergistic thermo-mechanical-driven microstructural evolution in AlTiN coatings and their friction–wear mechanisms against Si3N4 counterparts","authors":"Fangsheng Mei , Yang Yu , Min Chen , Jiangxiong Gao , Jianguo Lin , Tangqing Wu","doi":"10.1016/j.surfcoat.2025.132756","DOIUrl":"10.1016/j.surfcoat.2025.132756","url":null,"abstract":"<div><div>Cemented-carbide tools endure extreme thermo-mechanical coupling during cutting; clarifying the microstructural evolution and wear mechanisms of coatings under such synergistic conditions is key to developing high-performance coated tools. Focusing on arc-deposited AlTiN coatings, this study captures the complete microstructural trajectory during argon heat treatment and subsequent deformation, and elucidates—from a coupled thermo-mechanical perspective—the intrinsic physical mechanisms underlying the enhanced wear resistance conferred by argon heat treatment. Thermally induced spinodal decomposition enriched the AlTiN coating with w-AlN, converting the structure from single-phase FCC to FCC + HCP. Concurrently, columnar grains refined into a fine-grained matrix, and microcracks propagated through the w-AlN domains. As the annealing temperature rises, cracks at the indentation periphery widen and proliferate, whereas those within the stressed zone narrow and disappear. Annealing softened the coating by forming w-AlN, which improved elasticity, yet introduced microcracks that lowered crack resistance. After 1100 °C annealing, the wear rate fell to 1.75 × 10<sup>−15</sup> m<sup>3</sup>·N<sup>−1</sup>·m<sup>−1</sup>—only 17 % of the as-deposited value. Microcracks cushioned compressive shear, while w-AlN promptly fragmented, oxidized, and formed protective debris that halted further wear.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132756"},"PeriodicalIF":6.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269638","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}

引用次数: 0

Surface integrity engineering via ultrasonic surface rolling for enhanced hot salt stress corrosion cracking resistance of TC11 alloy 采用超声表面轧制技术提高TC11合金抗热盐应力腐蚀开裂的表面完整性工程

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-03 DOI: 10.1016/j.surfcoat.2025.132757

Mengyao Li, Daoxin Liu, Kai Zhou, Yanjie Liu, Zhiqiang Yang, Junnan Wu, Xiaohua Zhang

{"title":"Surface integrity engineering via ultrasonic surface rolling for enhanced hot salt stress corrosion cracking resistance of TC11 alloy","authors":"Mengyao Li, Daoxin Liu, Kai Zhou, Yanjie Liu, Zhiqiang Yang, Junnan Wu, Xiaohua Zhang","doi":"10.1016/j.surfcoat.2025.132757","DOIUrl":"10.1016/j.surfcoat.2025.132757","url":null,"abstract":"<div><div>Ultrasonic surface rolling processing (USRP) was applied to TC11 titanium alloy to improve its resistance to hot salt stress corrosion cracking (HSSCC) under high-temperature constant-load tensile conditions. By tailoring the number of processing passes, USRP produced a refined surface finish and introduced a thermally stable compressive residual stress (CRS) field. The CRS stability was maintained through the pinning and entanglement of high-density dislocations, effectively suppressing stress relaxation during thermal-mechanical exposure. The smoother surface reduced local stress concentrations and limited CRS redistribution. In addition, USRP promoted the rapid development of a dense amorphous–nanocrystalline composite oxide film, which served as an effective barrier to corrosive species and mitigated oxygen-induced embrittlement. These combined effects markedly enhanced the HSSCC resistance of TC11 alloy, demonstrating the potential of USRP as a robust surface engineering technique for extending the service life of titanium alloys in aggressive high-temperature salt environments.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132757"},"PeriodicalIF":6.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145222711","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}

引用次数: 0

Corrosion behavior analysis and plasma electrolytic oxidation coatings protection study of selective laser melting–AlSi10Mg alloy 选择性激光熔化alsi10mg合金的腐蚀行为分析及等离子体电解氧化涂层保护研究

IF 6.1 2区材料科学

Surface & Coatings Technology Pub Date : 2025-10-02 DOI: 10.1016/j.surfcoat.2025.132753

Zhanpeng Li , Ronghui Kou , Guofeng Ma , Jiahao Wang , Shu Chen , Guangchao Liu , Yu Zhang

{"title":"Corrosion behavior analysis and plasma electrolytic oxidation coatings protection study of selective laser melting–AlSi10Mg alloy","authors":"Zhanpeng Li , Ronghui Kou , Guofeng Ma , Jiahao Wang , Shu Chen , Guangchao Liu , Yu Zhang","doi":"10.1016/j.surfcoat.2025.132753","DOIUrl":"10.1016/j.surfcoat.2025.132753","url":null,"abstract":"<div><div>Selective Laser Melting (SLM)–AlSi10Mg alloy is widely used in areas requiring light weight and high strength due to its good mechanical properties. However, the corrosion resistance of the alloy is poor in the application environment. In this paper, the corrosion behavior of SLM–AlSi10Mg was investigated by micro–morphology and Density Functional Theory (DFT) calculations, and the PEO treatment significantly enhanced the corrosion resistance of the alloy. Further results showed that: In 3.5 wt% NaCl environment, the I<sub>corr</sub> of PEO coatings were reduced by two orders of magnitude and the corrosion resistance was significantly improved by kinetic potential polarization curves and EIS tests. And it was found that the degree of grain refinement and pores in the AlSi10Mg melt pools affected both the corrosion resistance and the in–situ growth of the PEO coatings. The DFT calculations show that the semiconducting properties of Si and Mg<sub>2</sub>Si phases enhance the corrosion resistance of the alloy. The Si and Mg<sub>2</sub>Si phases also slow down the electron transfer and inhibit the corrosion behavior as analyzed from the energy band structure and density of states calculations. In addition, the Si phase was found to be present in the alloy in a doped form. The aim of this paper is PEO coatings to improve the electrochemical corrosion performance of SLM–AlSi10Mg alloy. And the corrosion behavior of the alloy and the influencing factors are verified by DFT analysis.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132753"},"PeriodicalIF":6.1,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145269639","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}

引用次数: 0