建筑装饰用铝青铜表面改性与耐磨性能研究
Research on surface modification and wear resistance of aluminum bronze for architectural decoration
郑子方 1王子怡 2李强3
作者信息
- 1. 郑州西亚斯学院,河南 郑州 450000
- 2. 河南科技大学 材料科学与工程学院,河南 洛阳 471000
- 3. 河南理工大学 材料科学与工程学院,河南 焦作 454003
- 折叠
摘要
为了提升装饰用铝青铜合金的表面耐磨性,采用非平衡磁控溅射和等离子渗氮相结合的方法,在铝青铜合金表面制备了不同成分和膜厚的改性膜层,对比分析了改性膜层的显微形貌、物相组成和耐磨性能.结果表明:装饰用铝青铜合金表面磁控溅射Cu-Ti膜的Ti/Cu原子比接近6.7(M1)、1.7(M2)和0.5(M3),预置膜厚分别为3.4 µm、3.4 µm和2.8 µm.660℃/2 h渗氮处理后,M1、M2和M3膜层的截面厚度分别为7.2 µm、5.8 µm和2.7 µm,磨损率分别为0.21 m3·N-1·m-1、6.27 m3·N-1·m-1和9.98×10-14 m3·N-1·m-1;660℃/5 h渗氮处理后,M1、M2和M3膜层的截面厚度未见明显变化,磨损率分别为0.47 m3·N-1·m-1、0.22 m3·N-1·m-1和3.94×10-14 m3·N-1·m-1.660℃/2 h和660℃/5 h渗氮处理后,膜层的磨损率较铜合金基体明显降低.660℃/2 h渗氮处理后,M1膜层的磨损率最小(0.21×10-14 m3·N-1·m-1),耐磨性最好,此时的磨损机制为氧化磨损加黏着磨损.
Abstract
In order to improve the surface wear resistance of aluminum bronze alloy for decoration,a combination of unbalanced magnetron sputtering and plasma nitriding was used to prepare modified film layers with different compositions and film thicknesses on the surface of aluminum bronze alloy.The microstructure,phase composition and wear resistance of the modified film layers were compared and analyzed.The results showed that the Ti/Cu atomic ratio of the Cu-Ti film sputtered on the surface of aluminum bronze alloy for decoration was close to 6.7(M1),1.7(M2),and 0.5(M3),with preset film thicknesses of 3.4 µm,3.4 µm,and 2.8 µm,respectively.The cross-sectional thicknesses of M1,M2,and M3 film layers after nitriding treatment at 660℃/2 h were 7.2 µm,5.8 µm,and 2.7 µm,with wear rates of 0.21 m3·N-1·m-1,6.27 m3·N-1·m-1 and 9.98×10-14 m3·N-1·m-1,respectively.After nitriding treatment at 660℃/5 h,there was no significant change in the cross-sectional thickness of M1,M2,and M3 film layers,and the wear rates were 0.47 m3·N-1·m-1,0.22 m3·N-1·m-1 and 3.94×10-14 m3·N-1·m-1,respectively.The wear rate of the film layer after 660℃/2 h and 660℃/5 h nitriding treatment is signifi-cantly reduced compared to the copper alloy matrix.The wear rate of the M1 film layer after 660℃/2 h nitriding treatment is smallest with the best wear resistance,and the wear mechanism is oxidation wear and adhesive wear.
关键词
铝青铜/表面改性层/渗氮/显微形貌/摩擦磨损Key words
aluminum bronze/surface modification layer/nitriding/microscopic morphology/friction and wear引用本文复制引用
基金项目
河南省自然科学基金(ZX21023305)
河南省科技攻关计划(2102210282)
民办普通高等学校专业建设项目(2024)(教政法[2023]369号)
出版年
2024
NETL
NSTL
万方数据