TiAlSiN涂层在海水中的表面摩擦学和电化学性能

IF 2 3区材料科学 Q2 ENGINEERING, MECHANICAL

Surface Topography: Metrology and Properties Pub Date : 2023-05-31 DOI:10.1088/2051-672X/acda4c

A. Liu, J. Deng, Runzhou Tian

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引用次数: 0

摘要

为了研究摩擦表面和电化学性能对TiAlSiN涂层在海水中的摩擦学性能的影响，采用以氮化硅陶瓷球为反相材料的球盘式摩擦计，比较研究了TiAlSiN涂层在空气和海水中的摩擦学性能。结果表明:在两种摩擦条件下，TiAlSiN涂层的磨损率均低于316l钢基体，涂层具有良好的防护效果;当空气中发生摩擦时，磨损区的磨粒不能及时排出，造成磨粒堆积，加速涂层的磨损。当在海水中发生摩擦时，虽然海水具有腐蚀性，但摩擦过程中由摩擦氧化物形成的润滑屏障表面显著降低了涂层的磨损率。此外，优异的电化学性能和致密的涂层组织提高了TiAlSiN涂层在海水中的耐摩擦腐蚀性能。证明摩擦表面对TiAlSiN涂层的摩擦学性能有很大的影响，如何在摩擦化学环境中形成更有利的摩擦层是值得在海洋装备领域进一步研究的问题。

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Surface tribological and electrochemical properties of TiAlSiN coating in seawater

To investigate the effects of friction surface and electrochemical properties on the tribological behavior of TiAlSiN coatings in seawater, the tribological properties of TiAlSiN coatings in air and seawater are comparatively studied using a ball-on-disk tribometer with Si3N4 ceramic balls as the counter material. The results show that under both friction conditions, the wear rate of TiAlSiN coating is decreased compared with 316 l steel substrate, and the coating presents a good protective effect. When friction occurs in air, the abrasive debris in the wear area cannot be discharged in time, resulting in the accumulation of abrasive debris and accelerating the wear of the coating. When friction occurs in seawater, although seawater is corrosive, the lubricating barrier surface formed by the friction oxide during the friction process significantly reduces the wear rate of the coating. In addition, the excellent electrochemical properties and the dense coating microstructure improve the tribocorrosion resistance of the TiAlSiN coating in seawater. It proves that friction surface has a great impact on the tribological performance of TiAlSiN coatings, and how to form a more favorable friction layer in the tribochemical environment is worthy of further research in the field of marine equipment.

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来源期刊

Surface Topography: Metrology and Properties Materials Science-Materials Chemistry

CiteScore

4.10

自引率

22.20%

发文量

183

期刊介绍： An international forum for academics, industrialists and engineers to publish the latest research in surface topography measurement and characterisation, instrumentation development and the properties of surfaces.