文献类型：期刊文献

中文题名：高熵陶瓷耐磨耐蚀一体化涂层发展现状

英文题名：Development Status of High-entropy Ceramic Coatings with Integrated Wear and Corrosion Resistance

作者：胡杰珍[1,2];钟声昊[1,2];邓培昌[2,3];耿保玉[1,2];李友炽[1,2];吴方明[1,2]

机构：[1]广东海洋大学机械工程学院,广东湛江524088;[2]广东海洋大学湛江市海洋工程及装备腐蚀与防护重点实验室,广东湛江524088;[3]广东海洋大学化学与环境学院,广东湛江524088

年份：2025

卷号：54

期号：22

起止页码：1

中文期刊名：表面技术

外文期刊名：Surface Technology

收录：北大核心2023、、EI(收录号：20255019688858)、北大核心

基金：广东省自然科学基金(2021A1515012129);广东省普通高校创新团队项目(2024KCXTD041);湛江市科技发展专项(2022A01029)。

语种：中文

中文关键词：高熵陶瓷涂层;耐腐耐磨性能;组元设计;涂层制备工艺

外文关键词：high-entropy ceramic coating;corrosion and wear resistance;component design;coating preparation process

中文摘要：工程装备运动部件在腐蚀-摩擦协同作用下易发生加速失效,严重影响设备可靠性和服役寿命。高熵陶瓷凭借其高熵效应赋予的优异化学稳定性、耐蚀性以及高硬度,成为耐磨耐蚀一体化涂层的理想材料体系之一。本文系统综述了高熵陶瓷的内涵、种类、组元设计原则和涂层制备工艺进展。根据非金属元素组成,将高熵陶瓷分为氮化物、氧化物、碳化物和硼化物等体系,详细分析了各类高熵陶瓷的耐磨耐蚀性能特征,展现了高熵陶瓷在耐磨耐蚀一体化涂层的应用方面具有极高的潜力。研究表明,高熵陶瓷的组元配比通过影响混合熵和微观组织结构,进而调控其力学性能与耐蚀行为。当前研究主要采用半经验法和第一性原理计算等方法开展组元设计,通过优化单一金属或非金属元素的组分比例,探索高熵陶瓷涂层的最佳耐蚀耐磨性能。基于现有研究进展,指出高熵陶瓷涂层仍面临耐磨与耐蚀性能难以协同提升,涂层与基体界面结合强度不足等关键科学问题和技术挑战,并且展望了高通量计算与机器学习辅助组元设计,多尺度结构优化等未来发展方向。上述研究成果为高熵陶瓷耐磨耐蚀一体化涂层的开发与应用提供了系统的理论指导和技术参考。

外文摘要：The moving components in engineering equipment are highly susceptible to significantly accelerated failure under the synergistic effects of corrosion and friction,severely impairing the reliability and service life of the equipment.In recent years,high-entropy ceramics(HECs)are characterized by multi-component single-phase solid solutions and benefit greatly from the high-entropy effect,which endows them with excellent chemical stability,corrosion resistance,and high hardness.Consequently,HECs have emerged as one of the most promising material systems for developing comprehensive wear-resistant and corrosion-resistant protective coatings.The work aims to summarize the concept,classification,composition design principles,and preparation techniques of HECs.The basic concepts of HECs coatings are elaborated.Inspired by high entropy alloys(HEAs)and two-component ceramic coatings,Rost et al.successfully developed HECs(MgCoNiCuZn)O in 2015,confirming that configurational entropy could promote reversible transformation from multiphase to solid solution,which opened up a new direction for research on high-entropy ceramics.Unlike HEAs where metal bonds dominate,HECs form a unique solid solution structure through the synergistic action of multiple chemical bonds such as ionic and covalent bonds.Its typical feature is that multiple main elements occupy the same Wyckoff equivalent position in equal/near equal atomic ratios,forming a multi-component inorganic system with significant configurational entropy effect.According to the types of non-metallic elements in HECs,high entropy alloys are divided into nitride high entropy ceramics(HENCs),oxide high entropy ceramics(HEOCs),carbide high entropy ceramics(HECCs),and boride noble ceramics(HEBCs).HENCs form dense crystal structures through metal-nitrogen covalent-ionic bonds,and exhibit significant lattice distortion and chemical disorder,which endows them with excellent wear resistance/corrosion resistance,making them the most studied for such coatings.Although there is limited research on the performance of HEOCs,existing studies indicate that they inherit the chemical stability of oxides in extreme acidic/alkaline environments.HECCs form a dense carbide network skeleton through covalent bonds between carbon and transition metals.At the same time,the solid solution of carbon gaps causes lattice distortion,hinders dislocation movement,and can effectively improve the hardness and wear resistance of coatings.HECCs passivation film is usually not as stable as HEN.Among all four types,HEB exhibits the best high-temperature hardness retention and resistance to environmental/molten metal corrosion,making it suitable for ultra-high temperature applications.The elemental composition has a major impact on wear resistance and corrosion resistance.Currently,the composition design relies on semi-empirical and first-principles methods.Elemental ratios affect mixing entropy,altering microstructures that govern mechanical and corrosion behaviors.The prevailing research approach optimizes comprehensive performance by tuning individual metallic/non-metallic elements.Transition metals act as stabilizers,of which similar atomic radii and electronegativities promote stable single-phase solid solutions.Main group and rare earth elements serve as modifiers,regulating density,oxidation resistance,and amorphous-forming ability.Non-metals(N,O,C,B)critically determine crystal structures and wear and corrosion resistance performance.For HENCs coatings,an appropriate elevation in nitrogen content enhances corrosion and wear resistance,whereas nitrogen excess induces microstructural heterogeneity through phase segregation,consequently degrading performance.In HECCs coatings,incremental carbon content elevates hardness and wear resistance but concurrently diminishes corrosion resistance.Regarding HEOs coatings,although oxygen enrichment improves wear resistance,corrosion resistance first increases and then gradually decreases.In HEB system,boron promotes the formation of eutectic structure and increases hardness,but reduces corrosion resistance.At present,these studies indicate that it is difficult to synergistically improve wear resistance and corrosion resistance,and the weak bonding strength between the coating/substrate interface has become the two key challenges faced by HECs coatings.Future research on corrosion-resistant and wear-resistant HECs coatings will exhibit multi-dimensional development trends.In terms of composition design,intelligent methods such as high-throughput computation and machine learning will gradually replace traditional trial-and-error approaches,enabling the precise design of coating materials.Regarding coating structure optimization,multi-layer or gradient designs will become effective pathways to enhance interfacial bonding strength and comprehensive performance.Concurrently,continuous innovation in novel preparation processes will further improve coating quality and properties.Particularly noteworthy is that establishing life prediction models under multi-physics field coupling conditions will become a key research direction.This will propel high-entropy ceramic coatings to make a substantial transition from fundamental research to engineering applications.As an important development direction in materials science,high-entropy ceramic coatings demonstrate immense potential in enhancing the service performance of materials and expanding novel application scenarios.