Ag-containing refractory metal high-entropy nitride coatings with enhanced hardness, corrosion resistance, and antibacterial performance

IF 5.3 2区材料科学 Q1 MATERIALS SCIENCE, COATINGS & FILMS

Surface & Coatings Technology Pub Date : 2025-06-19 DOI:10.1016/j.surfcoat.2025.132420

Chuanyao Dong , Zhixuan Mu , Yiwei Li , Linhe Lv , Xinlei Gu , Junhan Yao , Xingfu Bao , Xiaoxi Wei , Kan Zhang

{"title":"Ag-containing refractory metal high-entropy nitride coatings with enhanced hardness, corrosion resistance, and antibacterial performance","authors":"Chuanyao Dong , Zhixuan Mu , Yiwei Li , Linhe Lv , Xinlei Gu , Junhan Yao , Xingfu Bao , Xiaoxi Wei , Kan Zhang","doi":"10.1016/j.surfcoat.2025.132420","DOIUrl":null,"url":null,"abstract":"<div><div>Artificial temporomandibular joint (TMJ) replacement surgery effectively restores function and relieves pain in severe joint disorders. However, the complex physiological environment of the TMJ presents significant challenges, including persistent interfacial friction, severe corrosion, and bacterial adhesion, which critically limit implant longevity. This study introduces Ag into refractory metal nitrides based on the concept of high-entropy engineering, successfully synthesizing a stable single-phase solid solution (TiZrNbHfTaAg)N coating with 5.7 at.% Ag. This Ag-containing high-entropy coating exhibits excellent spontaneous oxidation capabilities, significantly enhancing antibacterial performance (antibacterial rate = 90.9 %) compared to both the Ag-free (TiZrNbHfTa)N coating and the Ag-agglomerated (TiZrNbHfTaAg)N/Ag coating. Furthermore, the high-entropy engineering approach mitigates the common issue of Ag agglomeration, which often compromises mechanical integrity and corrosion resistance of coatings. The solution strengthening effect substantially improves the mechanical properties (hardness = 26.06 ± 1.01 GPa) and wear resistance (wear rate = 1.83 × 10<sup>−6</sup> mm<sup>3</sup>/Nm) of the (TiZrNbHfTaAg)N coating. Additionally, the (TiZrNbHfTaAg)N coating also demonstrates excellent corrosion resistance, with a corrosion current density of 1.2 × 10<sup>−7</sup> A/cm<sup>2</sup>. This innovative coating design effectively addresses the inherent limitations of current TMJ implants, providing a balanced enhancement of antibacterial performance, mechanical strength, and longevity, thereby advancing protective strategies for artificial joint implants.</div></div>","PeriodicalId":22009,"journal":{"name":"Surface & Coatings Technology","volume":"512 ","pages":"Article 132420"},"PeriodicalIF":5.3000,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface & Coatings Technology","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0257897225006942","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}

引用次数: 0

Abstract

Artificial temporomandibular joint (TMJ) replacement surgery effectively restores function and relieves pain in severe joint disorders. However, the complex physiological environment of the TMJ presents significant challenges, including persistent interfacial friction, severe corrosion, and bacterial adhesion, which critically limit implant longevity. This study introduces Ag into refractory metal nitrides based on the concept of high-entropy engineering, successfully synthesizing a stable single-phase solid solution (TiZrNbHfTaAg)N coating with 5.7 at.% Ag. This Ag-containing high-entropy coating exhibits excellent spontaneous oxidation capabilities, significantly enhancing antibacterial performance (antibacterial rate = 90.9 %) compared to both the Ag-free (TiZrNbHfTa)N coating and the Ag-agglomerated (TiZrNbHfTaAg)N/Ag coating. Furthermore, the high-entropy engineering approach mitigates the common issue of Ag agglomeration, which often compromises mechanical integrity and corrosion resistance of coatings. The solution strengthening effect substantially improves the mechanical properties (hardness = 26.06 ± 1.01 GPa) and wear resistance (wear rate = 1.83 × 10⁻⁶ mm³/Nm) of the (TiZrNbHfTaAg)N coating. Additionally, the (TiZrNbHfTaAg)N coating also demonstrates excellent corrosion resistance, with a corrosion current density of 1.2 × 10⁻⁷ A/cm². This innovative coating design effectively addresses the inherent limitations of current TMJ implants, providing a balanced enhancement of antibacterial performance, mechanical strength, and longevity, thereby advancing protective strategies for artificial joint implants.

查看原文本刊更多论文

含银难熔金属高熵氮化物涂层，具有硬度、耐腐蚀性和抗菌性能

人工颞下颌关节（TMJ）置换手术能有效恢复严重关节疾病患者的功能，减轻疼痛。然而，TMJ复杂的生理环境带来了巨大的挑战，包括持续的界面摩擦、严重的腐蚀和细菌粘附，这些严重限制了种植体的使用寿命。本研究基于高熵工程的概念，将Ag引入难熔金属氮化物中，成功合成了5.7 at的稳定单相固溶体（TiZrNbHfTaAg）N涂层。% Ag)。与无银（TiZrNbHfTa）N涂层和聚银（TiZrNbHfTaAg）N/Ag涂层相比，该高熵含银涂层表现出优异的自发氧化能力，抗菌性能显著提高（抑菌率为90.9%）。此外，高熵工程方法减轻了银团聚的常见问题，这通常会损害涂层的机械完整性和耐腐蚀性。溶液强化效果显著提高了（TiZrNbHfTaAg）N涂层的力学性能（硬度= 26.06±1.01 GPa）和耐磨性（磨损率= 1.83 × 10−6 mm3/Nm）。此外，（TiZrNbHfTaAg）N涂层也表现出优异的耐腐蚀性，腐蚀电流密度为1.2 × 10−7 a /cm2。这种创新的涂层设计有效地解决了当前TMJ种植体的固有局限性，提供了抗菌性能、机械强度和寿命的平衡增强，从而推进了人工关节种植体的保护策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Surface & Coatings Technology 工程技术-材料科学：膜

CiteScore

10.00

自引率

11.10%

发文量

921

审稿时长

19 days

期刊介绍： Surface and Coatings Technology is an international archival journal publishing scientific papers on significant developments in surface and interface engineering to modify and improve the surface properties of materials for protection in demanding contact conditions or aggressive environments, or for enhanced functional performance. Contributions range from original scientific articles concerned with fundamental and applied aspects of research or direct applications of metallic, inorganic, organic and composite coatings, to invited reviews of current technology in specific areas. Papers submitted to this journal are expected to be in line with the following aspects in processes, and properties/performance: A. Processes: Physical and chemical vapour deposition techniques, thermal and plasma spraying, surface modification by directed energy techniques such as ion, electron and laser beams, thermo-chemical treatment, wet chemical and electrochemical processes such as plating, sol-gel coating, anodization, plasma electrolytic oxidation, etc., but excluding painting. B. Properties/performance: friction performance, wear resistance (e.g., abrasion, erosion, fretting, etc), corrosion and oxidation resistance, thermal protection, diffusion resistance, hydrophilicity/hydrophobicity, and properties relevant to smart materials behaviour and enhanced multifunctional performance for environmental, energy and medical applications, but excluding device aspects.