Surface & Coatings Technology最新文献

{"title":"Microstructural tailoring of Cr–Mn–Mo nitrides through Si and Y alloying","authors":"Lukáš Vrána ,&nbsp;Christian Gutschka ,&nbsp;Matej Fekete ,&nbsp;Zsolt Czigány ,&nbsp;Helmut Riedl ,&nbsp;Tatiana Pitoňáková ,&nbsp;Katalin Balázsi ,&nbsp;Pavel Souček","doi":"10.1016/j.surfcoat.2026.133155","DOIUrl":"10.1016/j.surfcoat.2026.133155","url":null,"abstract":"<div><div>This study investigates Si and Y alloying effects on microstructure and mechanical properties of Cr–Mn–Mo-based high- and medium-entropy nitride thin films fabricated by reactive DC magnetron sputtering, employing ab initio calculations and experimental analysis. Ab initio results show the unalloyed Cr–Mn–Mo–N system forms a stable fcc structure with negative formation energy, minimally affected by N vacancies. Alloying with Si, Y, or both further reduces formation energy, enhancing thermodynamic stability, especially at high Y concentrations. However, alloying comes with increased unit cell distortion, destabilising the crystal structure. Experiments reveal that Si and Y promote N incorporation, but complete stoichiometric metal-to-nitrogen ratios are not achieved, yielding N-vacant films. Structural analyses confirm the formation of a single-phase fcc solid solution, with lattice expansion and crystallite size refinement induced by increasing alloying concentrations. Atomic size mismatch is identified as the principal factor governing phase formation. Alloying enhances hardness without compromising elasticity, peaking at 20.5<!--> <!-->GPa in Si-alloyed film due to nanocrystallinity, N incorporation, and strong nitride covalent bonding.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133155"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928882","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":"Electrodeposited nanoflower platinum films for high-sensitivity glucose sensing and cellular activity monitoring","authors":"Yu-Lin Lee ,&nbsp;Chih-Ching Tseng ,&nbsp;Ren-Jei Chung ,&nbsp;Ching-Yu Lin ,&nbsp;Yu-Jui Fan ,&nbsp;Po-Chun Chen","doi":"10.1016/j.surfcoat.2025.133146","DOIUrl":"10.1016/j.surfcoat.2025.133146","url":null,"abstract":"<div><div>In this study, we developed a glucose sensor based on a nanoflower platinum (nfP) film prepared via electrodeposition. The nfP film exhibited excellent electrochemical performance, achieving a high glucose detection sensitivity of 81.9 μA cm⁻² mM⁻¹ and demonstrating strong selectivity in phosphate-buffered saline (PBS) electrolyte. Beyond glucose sensing, the nfP film enabled electrochemical monitoring of glucose consumption as an indirect means of detecting cell activity. Chronoamperometry was employed to quantify the concentrations of <em>Escherichia coli</em> (<em>E. coli</em>) and MCF-7 cancer cells by measuring glucose depletion in the solution. The presence of <em>E. coli</em> resulted in a decrease in glucose concentration, which was captured through reductions in the chronoamperometric current. As the <em>E. coli</em> concentration increased from 10⁴ to 10⁶ CFU/mL, the corresponding charge measured at the electrode decreased linearly, with a strong correlation (R² = 0.999) described by the regression equation y = 755.5x – 2420.5. Similarly, MCF-7 cells exhibited a linear correlation (R² = 0.943) within the range of 10³ to 10⁵ CFU/mL. Overall, this work presents a simple and effective electrochemical strategy for glucose detection and cell monitoring, demonstrating promising potential for practical biosensing applications involving both bacterial and cancer cell analysis.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133146"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928884","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":"Viscous layer formation during electropolishing and nano-texturing of 316 L stainless steel in ethylene glycol-perchloric acid using current controlled anodizing","authors":"Christine Regent ,&nbsp;Marie-Laure Doche ,&nbsp;Loïc Hallez ,&nbsp;Bruno Vuillemin ,&nbsp;Vincent Vignal ,&nbsp;Aurélien Boucher ,&nbsp;Sudipta Roy","doi":"10.1016/j.surfcoat.2025.133129","DOIUrl":"10.1016/j.surfcoat.2025.133129","url":null,"abstract":"<div><div>Although there has been a growing interest in nanoscale texturing of steel, there have been few papers focused on the processes accompanying the phenomenon. The current work examines if the formation of a viscous layer is a necessary condition for surface texturing of steel, and probes the underlying processes leading to pattern formation in an electrolyte originally developed for electropolishing. The investigation involved nanotexturing SS grade 316 L anodization using an ethylene glycol-perchloric acid electrolyte and constant current between 1 and 10 A·dm⁻². During the experiment, the viscous layer formation or surface modification as well as the potential response are simultaneously monitored. Two different electrode orientations, horizontal and vertical, are examined. The horizontal orientation stops convection at the vicinity of the electrode whereas the vertically oriented electrode would have convective flows at the electrode vicinity. The effect of surface preparation, through different mechanical polishing conditions, on the pore formation has also been examined. The results clearly showed the formation of viscous layer at the surface preceding surface texturing. The pore size was controlled by the applied current and reached 370 nm, with optimal current density being 5 A·dm⁻². Visualization of the electrode surface showed that one achieved a stable viscous film at a horizontal electrode. For the vertically oriented electrodes gravitational flows of the viscous layer were observed. The resistive contribution of the viscous layer was assessed around 0.50–0.70 Ω·dm². Analysis of potential changes also showed a voltage surge occurred during the formation of a compact layer. It was found that just at the point of completion of viscous layer, texturing commences, indicating that formation of a viscous layer or salt film is essential to the texturing process. Further analysis using the Sand equation showed electropolishing occurred due to diffusion-controlled transport through the viscous film.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133129"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928886","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":"Achieving low friction and high corrosion resistance DLC-Si films by HiPIMS","authors":"Zhiyong Zhang ,&nbsp;Changsong Liu ,&nbsp;Yongqiang Fu ,&nbsp;Feng Guo ,&nbsp;Dongzhou Jia ,&nbsp;Jiarong Wang ,&nbsp;Lei Cao ,&nbsp;Xiaoqiang Wu ,&nbsp;Xiaoxue Li","doi":"10.1016/j.surfcoat.2025.133148","DOIUrl":"10.1016/j.surfcoat.2025.133148","url":null,"abstract":"<div><div>In this paper, we prepared series of DLC-Si films on 304 stainless steel by adjusting the flux of C₆H₁₈OSi₂ (HMDSO) using the high-power pulse magnetron sputtering (HiPIMS) system. The effects of different Si contents on the tribology performance and electrochemical properties of DLC-Si films were evaluated. The results suggested that the film showed favorable tribological properties and corrosion resistance with 9.26 at.% Si content, and this can be attributed to the incorporation of Si elements changed its graphitization ratio, friction chemistry, and plastic transfer behavior. Furthermore, the formation of hydrated silica gel during the friction process resulted in the lowest coefficient of friction (0.084) and wear rate (2.124 × 10⁻⁷ mm³/(Nm)) in seawater. Furthermore, i_corr of DLC film reduced three orders of magnitude (3.397 × 10⁻⁸ A/cm²) when compared to the 304 substrate, this is due to its inherent chemical inertness and the compact structure of films. The results suggested that the DLC-Si films with low friction coefficients and high corrosion resistance, could effectively prolong the service life of moving components in seawater environments. This provides a theoretical foundation for the application of these films in such environments.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133148"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928973","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":"Influence of the BF3·O(C2H5)2 on the corrosion resistance of hybrid silica sol-gel coatings deposited on flash-PEO-treated Mg alloy","authors":"E. Merino ,&nbsp;S. Cere ,&nbsp;O. Ozcan ,&nbsp;M. Dimper ,&nbsp;I. Sobrados ,&nbsp;A. Durán ,&nbsp;Y. Castro","doi":"10.1016/j.surfcoat.2025.133055","DOIUrl":"10.1016/j.surfcoat.2025.133055","url":null,"abstract":"<div><div>Achieving highly cross-linked sol-gel coatings to provide effective corrosion protection of Mg alloys remains a challenging task. The aim of this work is to evaluate the effect boron trifluoride diethyl etherate (BF₃·O(C₂H₅)₂) as catalyst to epoxy group in a GPTMS/TEOS/SiO₂ sol and assesses its effect on the structure and corrosion resistance properties of Flash-PEO coated pre-treated Mg alloy. ²⁹Si MAS NMR and ¹³C CPMAS-NMR demonstrated that (BF₃·O(C₂H₅)₂) efficiently promotes the epoxy polymerization of the GPTMS and the formation of a hybrid silica network. However, the amount of (BF₃·O(C₂H₅)₂) should be optimized to minimize the formation of undesirable byproducts such as ethyl ether terminal units.</div><div>Therefore, GPTMS/TEOS/SiO₂ sols containing different amounts of (BF₃·O(C₂H₅)₂) were synthesized and deposited onto the Flash-PEO coated Mg alloy, leading to bilayer systems with a total thickness of ⁓8 μm. The corrosion behavior of the bilayer coatings in 3.5 wt% NaCl solution was evaluated by electrochemical impedance spectroscopy (EIS) and Scanning Kelvin probe microscope (SKPFM). The results revealed that the barrier properties of the coatings with enhanced cross-linked structure showed impedance modulus (│Z│_{f:0.1 Hz}) approximately four orders of magnitude higher than the bare magnesium alloy and two orders of magnitude higher than the F-PEO coated sample. A suitable compromise between (BF₃·O(C₂H₅)₂) amount and sol-gel film structure is required to obtain a more durable barrier coating capable to extend the protective lifespan of the magnesium alloy.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133055"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145898174","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":"Microstructure evolution and tribological properties of plasma sprayed FeCoNiCrMo-TiX composite coatings","authors":"Yi Wang,&nbsp;Yonggang Guo,&nbsp;Qing Zhang,&nbsp;Xinchao Wang,&nbsp;Zhongpu Wang,&nbsp;Zichao Guo,&nbsp;Dongjin Cui","doi":"10.1016/j.surfcoat.2026.133173","DOIUrl":"10.1016/j.surfcoat.2026.133173","url":null,"abstract":"<div><div>As the core component of the flour mill, the grinding roller has a significant impact on the flour quality and processing efficiency. Currently, the wear resistance of grinding rollers is primarily enhanced through alloy composition optimization and heat treatment strengthening, however, the improvement achieved by these methods remains limited. In this study, based on the solid solution strengthening and grain refinement effects of Mo and Ti in the alloy layer of the grinding roller surface, FeCoNiCrMo-TiC, FeCoNiCrMo-TiB₂, and FeCoNiCrMo-TiN coatings were prepared using plasma spraying. The microstructure, mechanical and tribological properties of the coatings were comprehensively characterized using XRD, XPS, SEM, EDS, microhardness testing, universal testing machine, and wear resistance testing. The results indicate that all coatings consisted of ceramic particles and FCC and BCC matrix solid solution phases. Compared with the FeCoNiCrMo coating, the FeCoNiCrMo-TiC coating exhibited a porosity reduction of 84%, while its hardness and bonding strength increased by 38% and 51%, respectively. These improvements are primarily attributed to the grain refinement and interfacial strengthening induced by TiC. Furthermore, compared with the substrate material, the friction coefficients of FeCoNiCrMo-TiC, FeCoNiCrMo-TiB₂, and FeCoNiCrMo-TiN coatings decreased by 18%, 9%, and 3%, respectively, and the corresponding wear rates were reduced by 33%, 23%, and 17%. Comprehensive analysis indicate that the FeCoNiCrMo-TiC composite coating possesses excellent tribological properties, mainly due to the synergistic effect of multiple hardening and strengthening mechanisms resulting from the addition of TiC ceramic particles, with wear mechanisms of abrasive wear and oxidative wear.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133173"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979555","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":"Microstructural characterisation of multi-pass Stellite-6 hardfacings developed by pulsed GMAW technique","authors":"Md Sharique Ansari ,&nbsp;Murugaiyan Amirthalingam ,&nbsp;Gautam Agarwal","doi":"10.1016/j.surfcoat.2026.133178","DOIUrl":"10.1016/j.surfcoat.2026.133178","url":null,"abstract":"<div><div>Stellite 6 is deposited mainly by laser cladding and plasma transferred arc welding. However, these processes have limitations in terms of initial setup cost, process complexity and portability. Pulsed GMAW offers a cost-effective alternative to conventional methods but remains unexplored. In this study, three hardfacings with dimensions 60 <span><math><mo>×</mo></math></span> 60 mm² were deposited over AISI 304 substrate with varying deposition rates while maintaining a constant arc energy per unit length. Defects such as cracking, porosity and lack of fusion were not observed. In-depth characterisations were carried out using different techniques. The deposits showed similar microstructural features where the primary dendrites consisted of a solid-solution matrix of Co and Fe, and the inter-dendritic region consisted of chromium-rich carbides and Co-rich solid solution. Two different morphologies of the carbides were observed: one forming as lamellar, and the other as facetted particles in the vicinity of the lamellar carbides, resembling a rosette structure. Transmission electron microscopy revealed both the carbides to be Cr₇C₃, formed due to the eutectic reaction. The deposits showed hardness in the range of 400–450 HV_0.2, comparable to the existing processes requiring high arc energy. The hardfacing resulted in enhanced wear performance compared to bare substrate. These insights highlight the potential of pulsed GMAW as an alternative to conventional processes and for repairing purposes, where portability and mobility are essential.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133178"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979556","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":"One-step electrodeposition of Fe-doped CoS₂ nanosheets for efficient hydrogen evolution","authors":"Mohammad A. Alebrahim ,&nbsp;A.B. Migdadi ,&nbsp;Ahmad A. Ahmad ,&nbsp;Qais M. Al-Bataineh","doi":"10.1016/j.surfcoat.2026.133199","DOIUrl":"10.1016/j.surfcoat.2026.133199","url":null,"abstract":"<div><div>One-step electrochemical tuning of transition-metal chalcogenides offers a versatile route for engineering catalysts at the solid-state level. In this study, we report the direct electrodeposition of Fe-doped CoS₂ thin films on ITO substrates and examine the structural, morphological, electrical, and optical modifications induced by Fe incorporation. Rietveld-refined X-ray diffraction confirms that both pristine and Fe-doped films crystallize in the cubic pyrite structure (space group Pa–3), with Fe incorporation associated with a measurable lattice expansion (a = 5.46 → 5.51 Å). This structural change is consistent with Fe incorporation into the CoS₂ lattice and the induction of lattice strain. SEM and AFM analyses reveal that Fe doping transforms the surface from coarse aggregates into interconnected nanosheet-like domains with reduced roughness, a morphology favorable for improved electronic connectivity. Correspondingly, four-point probe mapping shows that Fe incorporation nearly doubles the electrical conductivity and enhances its spatial uniformity across the film. Optical analysis indicates a slight redshift and a narrowing of the band gap (2.40 → 2.29 eV), suggesting modification of the electronic structure. Electrochemical evaluation shows that Fe-CoS₂ films require a lower overpotential and exhibit faster HER kinetics than undoped CoS₂, indicating that the observed structural and morphological modifications are correlated with improved catalytic behavior. These results provide fundamental insight into how Fe incorporation modulates the properties of electrodeposited CoS₂, highlighting electrochemical co-deposition as a controlled method for studying dopant effects in transition-metal sulfide coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133199"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979561","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":"TiAlN-based coating architectures for enhanced solid particle erosion resistance","authors":"B. Millan-Ramos ,&nbsp;P.R.T. Avila ,&nbsp;S. Brown ,&nbsp;L.B. Varela ,&nbsp;M. Cavarroc-Weimer ,&nbsp;J.M. Mendez ,&nbsp;M. Patterson ,&nbsp;L. Martinu ,&nbsp;J.E. Klemberg-Sapieha","doi":"10.1016/j.surfcoat.2026.133176","DOIUrl":"10.1016/j.surfcoat.2026.133176","url":null,"abstract":"<div><div>Solid particle erosion (SPE) can severely damage the airfoils of aircraft engines, reducing thrust and increasing fuel consumption. Ti-based nitride coatings are a suitable solution to protect against SPE. However, an optimal coating architecture should control intrinsic stress development during coating deposition. In the present work, two coating systems were deposited on Ti-6Al-4V alloy by low duty cycle magnetron sputtering (LDMS): i) monolithic TiAlN coatings with different bias values applied across their thickness, and ii) multilayer coatings composed of alternating metallic TiAl and ceramic TiAlN layers. The coating thickness varies from 9.5 μm to 11.4 μm depending on the architecture. All the samples exhibit a cubic-TiN crystallographic structure and the stress-depth profiles indicate that the development of compressive stresses strongly depends on the coating architecture. High hardness (25–30 GPa) was observed for coatings with moderately stressed surfaces (2.1–3.8 GPa in compression), and improved scratch resistance (L_C2 &gt; 26 N) was obtained for coatings with moderate-to-low stress profiles. In addition, the coating's erosion resistance is increased by up to two orders of magnitude (1.3 × 10⁵ μm/g) compared to the bare substrate (3.7 × 10⁷ μm/g) while using Al₂O₃ particles at a speed of 75 m/s. The examination of the eroded surface reveals a combination of brittle and ductile mechanisms involved in the SPE process. The differences in the erosion rate of the coatings are correlated to the index of brittleness and the residual stress depth profile.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133176"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038809","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":"Moderate-temperature annealing for enhanced mechanical and wear properties of Pt-doped CrN coatings: A comparative study at 400 °C and 800 °C","authors":"J. Li ,&nbsp;N.N. Xue ,&nbsp;W.L. Zhang ,&nbsp;Y.J. Chen ,&nbsp;H. Ren ,&nbsp;B. Guo ,&nbsp;F. Gong ,&nbsp;Z.W. Xie","doi":"10.1016/j.surfcoat.2026.133184","DOIUrl":"10.1016/j.surfcoat.2026.133184","url":null,"abstract":"<div><div>To improve the service life of molds utilized in precision glass molding (PGM) in harsh environments, this work puts forward a moderate-temperature annealing post-treatment strategy to address this challenge of insufficient mechanical and tribological properties of Pt-doped CrN coatings. Annealing at 400 °C effectively promotes moderate grain coarsening and retains Pt in solid solution within the CrN matrix, thereby significantly enhancing the overall coating performance. The optimized coating exhibits excellent mechanical properties (a hardness of 24.08 ± 1.02 GPa, a Young's modulus of 324.9 ± 6.15 GPa, a H/E ratio of 0.0744, a H³/E² ratio of 0.132) and outstanding wear resistance (a coefficient of friction of 0.43 and a wear rate of 4.59 × 10⁻⁷ mm³·N⁻¹·m⁻¹). In contrast, annealing at 800 °C induces outward diffusion of Pt along the grain boundaries and the formation of soft CrPt_<em>x</em> intermetallic precipitates, causing surface roughening, reduced hardness, and a dramatic deterioration in wear performance. This work elucidates the microstructure–property relationship governed by annealing temperature and provides important theoretical and practical guidance for designing high-performance protective coatings for harsh service environments.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"522 ","pages":"Article 133184"},"PeriodicalIF":6.1,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979926","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}