Tribological behavior of TiN and Ti (Si,C)N coatings on cold sprayed Ti substrates
Tribological behavior of TiN and Ti (Si,C)N coatings on cold sprayed Ti substrates
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DOI：
10.1016/j.surfcoat.2016.02.044
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发表时间：
2016-04-15
影响因子：
5.4
通讯作者：
Chromik, Richard R.
中科院分区：
文献类型：
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作者：
Goldbaum, Dina;Manimuda, Praveena;Chromik, Richard R.
随着航空航天零件冷喷涂修复技术的发展，需要更好地了解冷喷涂修复中保护涂层的力学和摩擦学行为。为此，生产了一种双层系统，包括在市售钛基板上的钛冷喷涂涂层和TiN， TiSiN和TiSiCN HiPIMS保护涂层。在往复磨损条件下，用配有直径为4mm的铝球的往复摩擦计对涂层的力学和摩擦学性能进行了评估。用光干涉仪分析了磨损轨迹。利用扫描电镜对聚焦离子束铣削后的磨损轨迹进行了截面分析。聚焦离子束铣削发现了涂层的变形损伤。冷喷涂基体孔隙率、晶粒细化和硬度对hiims沉积TiN、TiSiN和TiSiCN涂层的磨损特性有重要影响。(C) 2016 Elsevier B.V.版权所有
The evolution of the cold spray technology in the aerospace part repair created a need to better understand the mechanical and tribological behavior of the protective coatings on the cold sprayed repair. For that purpose, a bilayer system consisting of titanium cold spray coating on a commercially available titanium substrate and TiN, TiSiN and TiSiCN HiPIMS protective coatings were produced. The mechanical and tribological behavior of the coatings was evaluated under reciprocating wear with a reciprocating tribometer equipped with an aluminum ball (4 mm in diameter) counterface. The wear tracks were analyzed with a light interferometer. A cross-sectional analysis of the wear track was performed with SEM following focused ion beam milling. Focused ion beam milling revealed the deformation induced damages to the coatings. Cold sprayed substrate porosity, grain refinement and hardness were shown to play a significant role on the wear characteristics of HiPIMS deposited TiN, TiSiN and TiSiCN coatings. (C) 2016 Elsevier B.V. All rights reserved.