东北大学学报(自然科学版) ›› 2025, Vol. 46 ›› Issue (4): 33-42.DOI: 10.12068/j.issn.1005-3026.2025.20230286

• 机械工程 • 上一篇    下一篇

TiAlSiN涂层结构对涂层力学性能的影响

刘兴龙1,2, 李晨1, 蔺增1   

  1. 1.东北大学 机械工程与自动化学院,辽宁 沈阳 110819
    2.泰安东大新材表面技术有限公司,山东 泰安 271024
  • 收稿日期:2023-10-09 出版日期:2025-04-15 发布日期:2025-07-01
  • 作者简介:刘兴龙(1990—),男,山东临朐人,东北大学博士研究生
    蔺 增(1975—),男,山东莱芜人,东北大学教授,博士生导师.

Effect of TiAlSiN Coating Structure on Its Mechanical Properties

Xing-long LIU1,2, Chen LI1, Zeng LIN1   

  1. 1.School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110819,China
    2.NEU Mat (Tai’an) Surface Technology Co. ,Ltd. ,Tai’an 271024,China. Corresponding author: LIN Zeng,E-mail: zlin@mail. neu. edu. cn
  • Received:2023-10-09 Online:2025-04-15 Published:2025-07-01

摘要:

采用真空电弧离子镀技术,使用TiSi (原子比80∶20)和AlTi (原子比67∶33)合金作为靶材,在WC-Co基体上沉积双层及多层TiAlSiN涂层.研究了涂层结构对微观结构、力学特性、摩擦学性能的影响.采用TEM,SEM,EDS,XRD、纳米压痕仪、显微硬度仪、结合力测试仪分别对涂层的截面及磨痕形貌、磨痕成分、微观结构、弹性模量、显微硬度、结合力等进行了分析;采用摩擦磨损试验机对涂层的摩擦学性能进行了分析.结果表明:多层结构涂层的结合力(>200 N)优于双层结构涂层,双层结构涂层具有较强的抵抗塑性变形能力,而多层结构涂层抵抗弹性变形的能力较强.在小载荷下涂层的摩擦系数受涂层表面形貌影响较大,而在大载荷下涂层的表面形貌对摩擦系数影响较小.氧化磨损仅出现在双层结构涂层中,而磨粒磨损在2种涂层摩擦过程均有出现,多层结构涂层的耐磨性能优于双层结构涂层.

关键词: 电弧离子镀, TiAlSiN, 微观结构, 力学特性, 摩擦学性能

Abstract:

TiSi (atomic ratio 80∶20) and AlTi (atomic ratio 67∶33) alloys were used as target materials by the vacuum arc ion plating technique. Two layers and multiple layers of TiAlSiN coating were deposited on the WC-Co substrates to study the effects of the coating structure on the microstructure, mechanical properties, and tribological properties of the coatings. TEM,SEM, EDS, XRD, nano-indentation instrument, microhardness instrument and binding force tester were used to analyze the cross sections of the coatings and the morphologies, compositions, microstructures, elastic moduli, microhardness and binding force of the coating. The tribological properties of the coatings were analyzed by the friction and wear testing machine. The results showed that the binding force (greater than 200 N) of the multilayer coatings is higher than that of the double-layer coatings. The double-layer coatings exhibit stronger resistance to plastic deformation, while the multilayer coatings show stronger resistance to elastic deformation. The friction coefficient of the coatings under low loads is greatly affected by the surface topography of the coating, while the surface topography of the coating under large load has little effect on the friction coefficient. Oxidation wear occurs only in the double-layer coatings, while abrasive wear occurs in the friction wear process of both coatings. The wear resistance of the multi-layer coatings is higher than that of the double-layer coatings.

Key words: arc ion plating, TiAlSiN, microstructure, mechanical property, tribological property

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