| 摘要: |
| 为提高304不锈钢耐磨损性能，采用磁过滤阴极弧等离子体沉积的方法制备TiAlSiN多层梯度涂层，研究多层梯度结构对涂层摩擦磨损性能的影响。采用扫描电子显微镜（SEM）、X射线衍射仪（XRD）、X射线光电子能谱仪（XPS）、纳米压痕仪和划痕仪等方法对涂层的表面形貌、物相结构以及力学性能进行表征，并通过MST-3001摩擦磨损试验仪测试不同结构涂层的摩擦磨损性能。结果表明：与TiAlSiN单层涂层相比，TiAlSiN多层梯度涂层具有更高的结合力和韧性；两种涂层的摩擦因数和磨损率都远小于304不锈钢，其中TiAlSiN多层梯度涂层具有比单层涂层更低的磨损率，磨损率由2.6×104 μm3/（N·m）降至8.5×103 μm3/（N·m），降低了67.8%，TiAlSiN多层梯度涂层磨痕表面光滑致密，主要磨损机制为轻微粘着磨损、磨粒磨损和氧化磨损的协同作用。 |
| 关键词: TiAlSiN涂层 多层梯度涂层 摩擦因数 磨损率 磨损机制 |
| DOI：10.11933/j.issn.1007-9289.20171127001 |
| 分类号:TG174.444;TG115.58 |
| 基金项目:国家自然科学基金（51405506）；陕西省重点研发计划（2017ZDXM-GY-048） |
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| Effects of Gradient Multilayer Structure on Tribological Property of TiAlSiN Coating |
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TAN Chao1, HE Wei-feng1, CAO Xin1, LIAO Bin2, HE Guang-yu1, YANG Zhu-fang1
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1.Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038;2.College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
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| Abstract: |
| TiAlSiN gradient multilayer coating was deposited on 304 stainles steel by magnetic filtered arc ion plating to improve the wear resistance. The effect of the gradient multilayer structure on tribology properties of the TiAlSiN coating was studied. The surface morphology, phase composition, mechanical properties and tribology performance were investigated by SEM, XRD, XPS, nanoindention/scratching method, and ball-on-disk test, respectively. The results show that the adhesion strength of TiAlSiN gradient the multilayer coating is higher than that of the monolayer coating, and the gradient multilayer structure can improve the toughness of the TiAlSiN coating. The friction coefficient and wear rate of TiAlSiN coating are much lower than that of the 304 stainless steel substrate. Additionally, the wear rate of the TiAlSiN gradient multilayer coating exhibits a lower wear rate of 8.5×103 μm3/(N·m) than that of TiAlSiN monolayer, 2.6×104 μm3/(N·m), decreasing by 67.8%. The main wear mechanisms of TiAlSiN gradient multilayer coating are slight adhesion wear, abrasive wear and oxidative wear. |
| Key words: TiAlSiN coating gradient multilayer coating friction coefficient wear rate wear mechanism |
