| DU Jianrong,TAO Guanyu,ZENG Lu,CHEN Hui,YANG Hanzhe,WU Zhenyu.Research Progress on TiAlSiN Nanocomposite Coatings[J],53(18):31-54 |
| Research Progress on TiAlSiN Nanocomposite Coatings |
| Received:November 14, 2023 Revised:February 26, 2024 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2024.18.003 |
| KeyWord:TiAlSiN nanocomposite coating mechanical properties hardness toughness adhesion friction and wear |
| Author | Institution |
| DU Jianrong |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China |
| TAO Guanyu |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China;School of Automotive Engineering, Wuhan University of Technology, Wuhan , China |
| ZENG Lu |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China |
| CHEN Hui |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China |
| YANG Hanzhe |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China |
| WU Zhenyu |
China Academy of Machinery Wuhan Research Institute of Materials Protection Co., Ltd., Wuhan , China;State Key Laboratory of Special Surface Protection Materials and Application Technology, Wuhan , China |
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| Abstract: |
| With the emergence of difficulty to machine materials and the increasing demand for modern machining, the performance requirements for tool coatings are becoming increasingly stringent. Traditional binary and ternary hard coatings are no longer able to meet the requirements of modern machining fields for efficient, high-precision, and long-life tools. TiAlSiN nanocomposite coatings have rapidly developed in the field of tool processing due to their excellent toughness, wear resistance, corrosion resistance, and high-temperature oxidation resistance. They have been widely used in fields such as automobiles, aerospace, general machinery, and have great potential in marine, agricultural, and other fields. In this work, the structural characteristics of TiAlSiN nanocomposite coatings were first introduced:TiAlSiN nanocomposite coatings were a nanocomposite structure composed of nanocrystalline phase nc-TiAlN and amorphous phase a-Si3N4. nc-TiAlN was embedded as a nanocrystalline phase in the matrix phase composed of amorphous phase a-Si3N4, where the nanocrystalline phase included orthorhombic phase c-AlN, hexagonal phase h-AlN, tetragonal phase t-TiN, cubic phase c-TiN, and two TixAl1-xN structures. In addition, changes in Ti/Al ratio and Si content also affected its crystal structure and grain size. Afterwards, based on this, the research progress in mechanical properties of TiAlSiN nanocomposite coatings was mainly explored. In this section, at first, the hardness strengthening mechanism of TiAlSiN nanocomposite coatings was introduced, and then the influence of phase structure and microstructure on the hardness of TiAlSiN nanocomposite coatings was summarized; Secondly, the method for characterizing the toughness of TiAlSiN nanocomposite coatings (Vickers indentation), the parameters H/E and H3/E2 related to toughness were introduced. The ways to improve the toughness of coatings were summarized, including structural toughening and toughness phase toughening. The effects of process parameters, preparation techniques, coating design, and element content on the toughness of TiAlSiN nanocomposite coatings were summarized; Thirdly, methods for characterizing the adhesion of TiAlSiN nanocomposite coatings were introduced, and the effects of matrix composition, matrix pretreatment, adhesive layer design, coating composition, and preparation process on the adhesion were discussed; Fourthly, the tribological properties of TiAlSiN nanocomposite coatings were explored, pointing out the preparation process, coating composition and structural design, the influence of friction pair materials on the tribological properties of the coatings, and the causes of high friction coefficients. The mechanisms that affected their tribological properties were also discussed. At the same time, the current status of TiAlSiN nanocomposite coatings in typical application fields such as cutting tools and molds was introduced, and the advantages of TiAlSiN nanocomposite coatings compared with traditional binary and ternary coatings in various processing environments (dry and wet cutting environments, using different types of tools, rock cutting environments and mold processing) and the cost advantages of diamond coatings were summarized. Finally, the shortcomings of existing research were pointed out, and further research was needed on the research on the fundamental theoretical level of TiAlSiN nanocomposite coatings. Suggestions for process improvement and structural design optimization were made for the future research and development direction of TiAlSiN nanocomposite coatings. Potential application areas of TiAlSiN nanocomposite coatings were pointed out, providing reference for future research and application of TiAlSiN nanocomposite coatings technology. |
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