Surface & Coatings Technology最新文献

{"title":"Tribological behavior and thermal stability of sputtered WSTi nanocomposite films from room temperature to 400 °C","authors":"Zhiqi Feng ,&nbsp;Zhonghao Liu ,&nbsp;Yuting Guo ,&nbsp;Zhe Yuan ,&nbsp;Xuanpu Dong ,&nbsp;Rongsheng Cai ,&nbsp;Yutao Pei ,&nbsp;Huatang Cao","doi":"10.1016/j.surfcoat.2025.132694","DOIUrl":"10.1016/j.surfcoat.2025.132694","url":null,"abstract":"<div><div>Based on enthalpy-induced amorphization strategy, magnetron sputtered WSTi nanocomposite films achieved ultralow coefficients of friction (CoF) and enhanced wear resistance at high temperatures up to 400 °C. The effects of Ti doping concentration, tribo-testing temperature, and thermal stability on the microstructure and tribological properties of WSTi films were systematically investigated. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to analyze the microstructure and surfaces of the composite films after tribo-sliding, while the first-principle calculations elucidated the superior lubrication mechanism. Results indicated that the WSTi film with 19.4 at.% Ti exhibited the lowest CoF (0.07) and wear rate (W_R, 4.1 × 10⁻⁵ mm³/N·m) at room temperature. Furthermore, the film maintained stable lubrication performance at 400 °C, with a low CoF of 0.2. High-temperature annealing (400 °C and 600 °C) induced partial oxidation of WSTi film to WO₃ and TiO₂, yet the residual WS₂ phase preserved advanced self-lubricity through dynamic reorganization into lubricous layered structure. Density functional theory (DFT) calculations revealed that Ti incorporation increases interlayer spacing and reduces shear strength, facilitating ultralow CoF. This study provided a promising strategy for developing high-temperature adaptive solid lubricants for aerospace industrial applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132694"},"PeriodicalIF":6.1,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120076","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":"Preparation of fluorapatite-containing flower-like structure coatings by micro-arc oxidation combined with ion-exchange technology","authors":"Po-Chun Wang ,&nbsp;Wei-Ting Lin ,&nbsp;Jun-Wei Huang ,&nbsp;Yi-Ju Li ,&nbsp;Tsung-Yuan Kuo ,&nbsp;Chi-Sheng Chien ,&nbsp;Ching-Ping Chang ,&nbsp;Tzer-Min Lee","doi":"10.1016/j.surfcoat.2025.132688","DOIUrl":"10.1016/j.surfcoat.2025.132688","url":null,"abstract":"<div><div>Fluorapatite (FA) coatings offer superior chemical and thermal stability compared to hydroxyapatite (HA), making them attractive for biomedical applications. However, producing highly crystalline FA coatings using only micro-arc oxidation (MAO) remains challenging. Ion-exchange technology (IET) enables the substitution of OH⁻ in HA with F⁻ to form FA or fluorohydroxyapatite (FHA), thereby enhancing the long-term stability of the crystal structure. Accordingly, this study prepared FA-containing coatings on pure titanium substrates by combining MAO and IET. The MAO process was conducted at 390 V and 0.6 A for 5 min in an electrolyte containing 0.2 mol/L (CH₃COO)₂Ca·H₂O and 0.1 mol/L NaH₂PO₄·2H₂O, resulting in flower-like structure coatings containing TiO₂, DCPD (CaHPO₄·2H₂O), and HA. IET was then applied in NaF solutions at varying temperatures (25 °C, 60 °C), fluoride ion concentrations (50–100 ppm), and soaking durations (6–24 h). All the resulting coatings retained a flower-like morphology and contained F⁻ ions. At 25 °C, only FHA was formed, whereas at 60 °C, FA was produced. The MAO/IET coatings exhibited superior mechanical properties, including higher hardness (H) and elastic modulus (E), and favorable H/E and E_coating/E_substrate ratios. In addition, the MAO and MAO/IET coatings both exhibited superhydrophilicity, with contact angles approaching 0°. The bioactivity of the MAO/IET coatings was slightly lower than that of the MAO coatings. However, they demonstrated superior biocompatibility, as evidenced by more extensive MG-63 cell spreading. The findings of this study confirm that MAO/IET processing enables the fabrication of FA-containing coatings with excellent biomedical potential.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132688"},"PeriodicalIF":6.1,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145120072","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":"Improved electrochemical stability of AZ31B magnesium alloy via PEO surface films with strontium and chromium additives at different current densities","authors":"A. Fardosi ,&nbsp;A. Fattah-alhosseini ,&nbsp;M. Karbasi ,&nbsp;R. Chaharmahali ,&nbsp;B. Dikici","doi":"10.1016/j.surfcoat.2025.132681","DOIUrl":"10.1016/j.surfcoat.2025.132681","url":null,"abstract":"<div><div>Plasma electrolytic oxidation (PEO) is a versatile technique employed to generate adherent and protective oxide layers on magnesium-based substrates through electrochemical plasma discharge. This study investigates the influence of 0.5 gˑL⁻¹ strontium nitrate and 0.5 gˑL⁻¹ chromium nitrate additives using an electrolyte system containing phosphate species during the PEO processing of AZ31B alloy under two distinct current regimes: 6 and 12 Aˑdm⁻². Scanning electron microscopy (SEM) was employed to evaluate surface topology and to estimate the layer thickness of the coatings. Grazing incidence X-ray diffraction (GXRD) was utilized to identify the crystalline phases present in the coating structure. Surface wettability and roughness were evaluated through contact angle measurements and surface profilometry, respectively. Electrochemical techniques, including impedance spectroscopy and polarization analysis, were used to investigate the corrosion response of the coated samples. The incorporation of strontium improved coating compactness and hydrophobicity, leading to enhanced corrosion resistance. Notably, the Sr-modified coating formed at 12 Aˑdm⁻² exhibited the highest performance, achieving a polarization resistance of 1480 kΩˑcm² after 48 h of immersion. These results highlight the effectiveness of strontium-enhanced PEO processing in developing corrosion-resistant coatings for magnesium alloys.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132681"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105155","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":"Enhanced corrosion resistance of electrochemical deposited amorphous NiP coatings with surface cracks via nanosecond laser remelting: Effect of pulse width and cycle number on remelted layer","authors":"Jiabei Zhang ,&nbsp;Zhaoyang Zhang ,&nbsp;Dezhi Kong ,&nbsp;Yucheng Wu ,&nbsp;Shuai Yang ,&nbsp;Kun Xu ,&nbsp;Hao Zhu","doi":"10.1016/j.surfcoat.2025.132673","DOIUrl":"10.1016/j.surfcoat.2025.132673","url":null,"abstract":"<div><div>The amorphous Ni<img>P alloy coating is prone to forming surface cracks during electrochemical deposition, which weakens its corrosion resistance. In this study, nanosecond (ns) laser remelting (LR) was used to seal these cracks for surface modification. The study focused on the effects of ns-laser pulse width and the number of LR cycles on crack sealing efficiency and surface quality, with further evaluation of the electrochemical corrosion behavior. The results demonstrate that pulse width significantly affects both the effectiveness of crack sealing and the quality of the remelted surface (including pores and spatter). The optimal overall effect was achieved at a pulse width of 200 ns. The number of LR cycles significantly influenced the surface quality of the remelted layer. Compared to the original coating, a single LR cycle resulted in a considerable increase in surface roughness, accompanied by numerous pores. However, multiple LR cycles (7 cycles) effectively reduced surface roughness (approximately 75 %) and minimized surface defects, though with the formation of minor thermal microcracks. Additionally, the number of LR cycles showed negligible effects on both the remelted layer thickness and the degree of crystallization. Electrochemical corrosion tests revealed that LR significantly enhanced the coating's corrosion resistance. After 7 cycles of LR, the corrosion rate decreased by approximately 7.9 times compared to the original coating. This improvement is primarily attributed to the effective sealing of cracks in the remelted layer, which shifts the corrosion mechanism from corrosion-induced crack propagation to pitting corrosion. This study provides valuable guidance for implementing LR to modify electrodeposited coating surfaces.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132673"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105154","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":"A high performance mechanically alloyed stainless steel composite coating via friction surfacing","authors":"Wai I. Lam ,&nbsp;Ka Kit Leong ,&nbsp;Chan Wa Tam ,&nbsp;Qian Qiao ,&nbsp;Yongyong Lin ,&nbsp;Guoshun Yang ,&nbsp;Dawei Guo ,&nbsp;Chi Tat Kwok ,&nbsp;Hongchang Qian ,&nbsp;Dawei Zhang ,&nbsp;Xiaogang Li ,&nbsp;Lap Mou Tam","doi":"10.1016/j.surfcoat.2025.132685","DOIUrl":"10.1016/j.surfcoat.2025.132685","url":null,"abstract":"<div><div>A novel metallic composite coating of mechanically alloyed SS316/SS420 stainless steels was fabricated successfully via friction surfacing (FS). Its mechanical properties, wear and corrosion resistance were significantly enhanced. The FSed composite coating was primarily composed of austenite, accounting for approximately 67.8 %, which was inherited from SS316 consumable rod and contained lath martensite (32.2 %) derived from the SS420 filler rod. The grain size of the coating was refined to 2.03–3.99 μm due to the dynamic recrystallization and phase transformation during FS. Meanwhile, with the aid of plastic flow mixing and diffusion of the metallic elements (Ni, Mo and Cr) from SS316 and SS420, the diffusion zone composed of two new phases – Ni-deficient austenite and Ni-rich martensite formed, which contribute to the enhancement of comprehensive properties and minimize the galvanic effect between austenite and martensite in corrosive media. In the present study, a guideline is provided to fabricate high performance alloys in an effective, environmentally friendly and low-cost method, which has substantial application potential.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132685"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106030","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":"Surface modification of 304 stainless steel by ultrasonic strengthening grind process with Al2O3-MoS2-WC hybrid ceramic particles for wear resistance enhancement","authors":"Zhongwei Liang ,&nbsp;Pei He ,&nbsp;Zhuan Zhao ,&nbsp;Yunqi Zhong ,&nbsp;Zhenyan Li ,&nbsp;Meicong Wang","doi":"10.1016/j.surfcoat.2025.132687","DOIUrl":"10.1016/j.surfcoat.2025.132687","url":null,"abstract":"<div><div>In this study, Al₂O₃ and self-lubricating MoS₂ powders were incorporated into WC balls to impact the 304 stainless steels through ultrasonic strengthening grind process (USGP). By subjecting the steel to controlled USGP treatment, remarkable enhancements in surface properties were achieved, as evidenced by comprehensive microstructural and mechanical analyses. Key findings revealed that the 12-min USGP-treated sample exhibits exceptional wear resistance, with a dramatic 83.1 % reduction in wear volume (1.24 × 10⁶ μm³ under 10 N load) compared to untreated specimens. This outstanding performance is partially attributed to the formation of a micro-textured MoS₂ + Al₂O₃ coating, where MoS₂ provides superior self-lubrication while Al₂O₃ enhances surface hardness. Moreover, significant Grain refinement, high-density dislocations, and stacking faults were induced by severe plastic deformation. Furthermore, the emergence of dispersion-strengthened granular martensite and a stress-driven FCC-to-BCC phase transformation, further reinforcing the material's wear resistance. The multi-scale structural evolution (nano-to-micro) and self-lubricating/hardening synergy establish USGP as a promising approach for extreme-wear applications.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132687"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145105157","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 performance of NiAlHf/Ru coating at 1150 °C: Experimental investigation and first-principles calculations","authors":"Ruixiang Wu ,&nbsp;Yuchang Su ,&nbsp;Zhou Li ,&nbsp;Shangqin Yang ,&nbsp;Hongzhi Yang ,&nbsp;Qian Shi ,&nbsp;Bin Gan","doi":"10.1016/j.surfcoat.2025.132684","DOIUrl":"10.1016/j.surfcoat.2025.132684","url":null,"abstract":"<div><div>The mechanism by which Ru addition affects NiAl-based coatings was systematically investigated at 1150 °C by combining experimental analysis with first-principles calculations. The results revealed that Ru could inhibit the transition process from β to γ' phase, enabling the coating to retain a higher Al content. After oxidation, the oxide scale weight gains of NiAlHf and NiAlHf-0.15Ru coatings were 1.01 and 0.75 mg/cm², respectively, demonstrating that Ru addition could reduce oxidation rate. Based on transfer energies calculated by first-principles calculations, Ru preferentially occupied Ni lattice sites, whereas Hf predominantly substituted for Al lattice sites within the β-NiAl phase. Additionally, the segregation behavior of Ru and Hf at the α-Al₂O₃/β-NiAl phase interface and the mechanism underlying the influence of Ru doping on oxidation resistance properties were also discussed. Taken together, the experimental and computational results indicated that the incorporation of Hf and Ru facilitated the formation of a protective Al₂O₃ scale and enhanced the oxidation resistance of the coating. The results could provide experimental data and theoretical support for improving the performance of NiAl-based coatings and for the design of ultra-high temperature and long-life metallic protective coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132684"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106026","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":"Synergistic mechanism of MoS2 and PTFE in reinforcing epoxy-based composite coatings","authors":"Tao Jiang ,&nbsp;Luyang Song ,&nbsp;Bibo Zhang ,&nbsp;Haoqiang Zhang ,&nbsp;Peng Wang ,&nbsp;Yayu Zhou ,&nbsp;Lihua Fu ,&nbsp;Yiyan Wang ,&nbsp;Huali Han ,&nbsp;Hua Yu","doi":"10.1016/j.surfcoat.2025.132686","DOIUrl":"10.1016/j.surfcoat.2025.132686","url":null,"abstract":"<div><div>To address the urgent demand for enhanced durability and tribological performance of epoxy (EP) coatings in transmission components such as sliding bearings and gears, this study proposes a novel “soft–hard” synergistic filler strategy by incorporating MoS₂ and PTFE into an EP matrix. Although EP possess strong adhesion and chemical resistance, their inherent brittleness and poor wear resistance severely restrict their application under high mechanical loads. While various fillers have been investigated to improve EP's tribological properties, the combination of soft PTFE with hard MoS₂ offers a promising yet underexplored approach to simultaneously enhance toughness, reduce friction, and improve wear resistance. In this work, the effects of MoS₂ and PTFE on the mechanical and tribological properties of the EP matrix were systematically investigated using scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy, and their synergistic mechanism was elucidated. The results indicated that MoS₂ effectively enhanced the elastic modulus and hardness of the coating, while PTFE diminished these properties. When co-incorporated, the MoS₂/PTFE/EP coating exhibited the lowest coefficient of friction and wear rate, which were significantly reduced by 74.2 % and 97.3 %, respectively, compared to those of the pure EP coating. This remarkable performance enhancement was primarily attributed to the synergistic effects of MoS₂ and PTFE in three aspects: complementary mechanical properties, enhanced interfacial stability, and the formation of a robust, continuous composite transfer film. This study provides a key strategy and theoretical foundation for the filler design of high-performance, long-service-life EP-based self-lubricating coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132686"},"PeriodicalIF":6.1,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099090","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":"Yttrium-induced structural evolution and oxidation resistance in TiB2+∆ coatings deposited by conventional magnetron sputtering and HiPIMS","authors":"Marián Mikula ,&nbsp;Jozef Srogoň ,&nbsp;Peter Švec ,&nbsp;Viktor Šroba ,&nbsp;Leonid Satrapinskyy ,&nbsp;Tomáš Roch ,&nbsp;Martin Truchlý ,&nbsp;Marek Vidiš ,&nbsp;Zuzana Hájovská ,&nbsp;Katarína Viskupová ,&nbsp;Branislav Grančič ,&nbsp;Peter Kúš","doi":"10.1016/j.surfcoat.2025.132674","DOIUrl":"10.1016/j.surfcoat.2025.132674","url":null,"abstract":"<div><div>Titanium diboride (TiB₂) is a promising candidate for high-temperature applications due to its chemical inertness, phase stability, and excellent mechanical properties. However, its typical nanocomposite microstructure with a B-tissue phase promotes low-temperature oxidation. In this study, we employ a dual approach to suppress B-tissue formation and enhance oxidation resistance: yttrium alloying, due to its strong oxygen affinity, and the use of high-power impulse magnetron sputtering (HiPIMS) to reduce boron content in the growing film. Two Ti_1−xY_xB_2±∆ coatings with ∼9 at.% Y were deposited: overstoichiometric X-ray amorphous Ti_0.68Y_0.32B_2.8 via conventional direct current magnetron sputtering (DCMS) and understoichiometric crystalline Ti_0.76Y_0.24B_1.4 via HiPIMS. Thermally induced structural evolution and mechanical performance were analyzed using X-ray diffraction, scanning transmission electron microscopy, and nanoindentation. The X-ray amorphous coating crystallized above 900 °C into TiB₂ and YB₆ phases, while the HiPIMS coating retained its nanocolumnar, stacking fault-rich α-Ti_1−xY_xB_2-∆ structure up to 1100 °C. The Ti_0.68Y_0.32B_2.8 coating exhibited moderate hardness (∼ 28 GPa), whereas the Ti_0.76Y_0.24B_1.4 coating reached superhardness (&gt; 40 GPa) with higher Young's modulus (∼ 420 GPa). Both coatings showed improved oxidation resistance compared to TiB₂, with delayed crystalline oxide formation above 700 °C, while slower oxidation kinetics was observed for the understoichiometric coating. These results demonstrate the effectiveness of alloying and highly ionized deposition techniques for tuning the structure and high-temperature performance of TiB₂-based coatings.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"515 ","pages":"Article 132674"},"PeriodicalIF":6.1,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106029","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":"Effect of laser interface pretreatment on the microstructure, adhesion strength, and corrosion resistance of PVD-AlTiN coatings on Mg alloy substrates","authors":"Lei Zhang ,&nbsp;Qing Xiong ,&nbsp;Qingping Jian ,&nbsp;Xiaoli Qiu ,&nbsp;Chunfang Li","doi":"10.1016/j.surfcoat.2025.132671","DOIUrl":"10.1016/j.surfcoat.2025.132671","url":null,"abstract":"<div><div>Depositing nitride coatings on Mg alloys is an important pathway for protecting Mg alloy substrates. However, the as-deposited coatings often suffer from numerous growth defects and high residual stress. Nano-textured interfaces enable the conscious alteration of grain growth during coating deposition. While PVD nitride coatings have been explored for Mg alloys, few studies have investigated how nano-texture affects their microstructure, residual stress, and interfacial adhesion. In the present study, we fabricated a novel surface nano-texture: laser-induced periodic surface structures (LIPSS) on AZ31B Mg alloy via ultrafast-laser pretreatment. Subsequently, AlTiN coatings were deposited on both the LIPSS-modified and conventionally polished interfaces using multi-arc ion plating. A combination of microstructural, mechanical, and electrochemical techniques was employed to analyze the resulting changes. It was found that LIPSS-modified interfaces significantly refined the microstructure of the deposited AlTiN coatings, weakened their crystallographic texture, and alleviated their residual stress. The optimization of the coating microstructure is ascribed to the diversified nucleation sites and multidirectional growth of coating grains on the LIPSS-modified interface. Consequently, by introducing this LIPSS-modified interface, the AlTiN coatings achieved notably improved adhesion strength (<em>L</em>_<em>C2</em> = 34.4 N) and corrosion resistance (<em>I</em>_{<em>corr</em>} = 2.7 μA cm⁻²), in comparison with the coatings deposited on the conventionally polished interfaces. The enhanced adhesion strength arises from the suppressed crack propagation, which is induced by the alleviated residual stress. The improved corrosion resistance is attributed to the highly dense microstructure of the coating. This work is among the first to comprehensively evaluate the influence of LIPSS nano-textures on AlTiN coating behavior over Mg alloys, and these findings provide a pathway for durable, mechanically robust coatings on reactive lightweight alloys.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"516 ","pages":"Article 132671"},"PeriodicalIF":6.1,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099091","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}