反应等离子喷涂TiN涂层的研究进展

发布时间：2018-07-01 10:27

本文选题：反应等离子喷涂 + TiN涂层　；参考：《表面技术》2015年08期

【摘要】：TiN具有硬度高、韧性好、摩擦系数小、化学性能稳定等优点,广泛应用于刀具、装饰、表面防护等领域。目前制备TiN涂层的方法有很多,如气相沉积、热喷涂、电镀等,反应等离子喷涂则是最常用的金属-陶瓷复合涂层制备方法。概述了反应等离子喷涂技术的基本原理和分类,包括反应等离子喷涂涂层的形成过程及工艺的优缺点。综述了反应等离子喷涂TiN涂层的喷涂工艺及性能的研究进展,包括涂层的制备方法(原位合成法、烧结破碎法)和性能特点,重点分析了涂层的力学性能、耐磨损性能、耐腐蚀性能,并提出了可以依靠热处理工艺或封孔技术来提高涂层的耐腐蚀性能。依据实验和查阅的文献,反应等离子喷涂结合了自蔓延高温合成技术和等离子喷涂技术,可以制备质量优良的厚TiN涂层(500μm),是一种新型的低成本涂层制备技术,但是反应等离子喷涂制备TiN涂层存在孔隙率较高(5%~10%)、结合强度较低(50 MPa)的问题。分别从技术、设备、工艺、后处理四个方面总结了改善涂层质量的相应措施,展望了今后的研究发展方向。
[Abstract]:Tin has many advantages such as high hardness, good toughness, low friction coefficient and stable chemical properties. It is widely used in cutting tools, decoration, surface protection and other fields. At present, there are many methods to prepare tin coatings, such as vapor deposition, thermal spraying, electroplating, etc. Reactive plasma spraying is the most commonly used preparation method of metal-ceramic composite coatings. The basic principle and classification of reactive plasma spraying technology are summarized, including the forming process of reactive plasma spraying coating and the advantages and disadvantages of the process. The research progress of reactive plasma spraying tin coating was reviewed in this paper, including the preparation methods (in situ synthesis, sintering and crushing) and the characteristics of the coating. The mechanical properties and wear resistance of the coatings were analyzed. The corrosion resistance of the coating can be improved by heat treatment or hole sealing technology. According to the experimental and literature review, reactive plasma spraying (RPS) combined with self-propagating high-temperature synthesis technology and plasma spraying technology can be used to prepare thick tin coatings with good quality (500 渭 m), is a new low cost coating preparation technology). However, the problems of high porosity (510%) and low bonding strength (50MPa) exist in tin coatings prepared by reactive plasma spraying. The corresponding measures to improve the coating quality are summarized from four aspects of technology, equipment, process and post treatment, respectively, and the research and development direction in the future is prospected.
【作者单位】：河海大学力学与材料学院;
【基金】：国家自然科学基金(51379070) 江苏省普通高校研究生科研创新计划项目(CXZZ13-02)~~
【分类号】：TG174.4

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