TiAlSiN纳米复合涂层的改性研究现状及发展

发布时间：2018-05-22 16:09

  本文选题：TiAlSiN涂层 + 改性　； 参考：《表面技术》2017年08期

【摘要】：随着切削技术向高速、高效、高精、绿色、智能方向发展,切削加工对刀具及涂层性能提出了更高的要求,以TiAlSiN涂层为代表的四元硬质涂层发展迅速。综述了单层TiAlSiN纳米复合涂层的制备工艺、结构与性能特点,根据TiAlSiN单层涂层存在低韧性和低结合强度的问题,提出了对TiAlSiN涂层改性研究的必要性。综述了结构改性、成分改性以及二者相结合改性TiAlSiN涂层的制备工艺、结构与性能特点,指出了纳米多层结构的TiAlSiN涂层中存在的横向层间界面对原子的扩散具有良好的阻碍作用,涂层的抗氧化性由此被提高,涂层硬度等力学性能受多层结构的调制层成分、调制周期等因素影响而被提高或降低。介绍了C、Cu、Cr、V等合金化元素在TiAlSiN涂层中的作用效果,C元素在涂层中具有减摩作用,Cu元素的主要作用是增强涂层与基体的结合,Cu、Cr、V元素在涂层中均使涂层硬度不同程度降低,提出了最大限度发挥添加元素与层间界面结构的协同作用来获取最佳性能的纳米多层结构TiAlSiN基多元涂层是今后研究的重要方向之一。此外,还提出了通过基体前处理和涂层后处理增强TiAlSiN涂层韧性和层基结合强度的发展方向。
[Abstract]:With the development of cutting technology in the direction of high speed, high efficiency, high precision, green and intelligence, cutting has put forward higher requirements for the performance of cutting tools and coatings. The quaternary hard coatings, represented by TiAlSiN coatings, have developed rapidly. The preparation process, structure and properties of monolayer TiAlSiN nanocomposite coatings were reviewed. According to the problems of low toughness and low bonding strength of TiAlSiN monolayer coatings, the necessity of studying the modification of TiAlSiN coatings was put forward. The preparation process, structure and properties of structural modification, composition modification and combination modification of TiAlSiN coatings are reviewed. It is pointed out that the transverse interlayer interface in nano-multilayer TiAlSiN coatings has a good hindering effect on the diffusion of atoms. The oxidation resistance of the coating is improved and the mechanical properties such as hardness of the coating are improved or decreased by the factors of the modulation layer composition and the modulation period of the multilayer structure. In this paper, the effect of alloying elements, such as Cu / Cu / Cr / V, on TiAlSiN coating is introduced. The main function of C element in the coating is to enhance the bonding between the coating and the substrate, and the hardness of the coating is reduced to some extent. It is put forward that it is one of the important research directions in the future to maximize the synergetic effect of adding elements and interlayer structure to obtain the best performance of nano-multilayer TiAlSiN based multicomponent coatings. In addition, the development direction of strengthening the toughness and bonding strength of TiAlSiN coating by pre-treatment and post-treatment was put forward.
【作者单位】： 成都真锐科技涂层有限公司;四川大学制造科学与工程学院;四川大学分析测试中心;
【基金】：国家科技重大专项(2015ZX04005004)~~
【分类号】：TG174.4
，

本文编号：1922753