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High temperature tribological performance of nickel-based composite coatings by incorporating multiple oxides (TiO2–ZnO–MoO3)
Tribology International ( IF 6.2 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.triboint.2020.106759
Peiying Shi , Gewen Yi , Shanhong Wan , Huwei Sun , Xiaochun Feng , Sang T. Pham , Kiet A. Tieu , Erqing Xie , Qihua Wang

Abstract The potential of lower friction and desired wear for nickel-based composite coating system at high temperatures was explored, where multiple oxides were incorporated into nickel matrix during the atmospheric plasma spraying process. The phase composition and microstructure of wear track were characterized by XRD, Raman, SEM/EDS, and FIB/STEM. The further addition of MoO3 allows for an effective reduction of friction coefficient at 800 °C. The surficial and interfacial analysis well confirmed that a protective tribo-layer presenting on the contacting surface, in which binary oxides (A-TiO2, R–TiO2, ZnO, NiO), molybdates and titanates (ZnMoO4, NiMoO4, and Zn2TiO4) were identifiable. The association of friction and wear properties with interface chemistry was discussed for the nickel-based coatings with the addition of multiple oxides (TiO2–ZnO–MoO3).

中文翻译:

掺入多种氧化物(TiO2-ZnO-MoO3)的镍基复合涂层的高温摩擦学性能

摘要 探讨了镍基复合涂层系统在高温下降低摩擦和所需磨损的潜力,其中在大气等离子喷涂过程中将多种氧化物结合到镍基体中。通过XRD、Raman、SEM/EDS和FIB/STEM表征磨损轨迹的相组成和微观结构。进一步添加 MoO3 可以有效降低 800 °C 时的摩擦系数。表面和界面分析很好地证实了接触表面上存在保护性摩擦层,其中可识别二元氧化物(A-TiO2、R-TiO2、ZnO、NiO)、钼酸盐和钛酸盐(ZnMoO4、NiMoO4 和 Zn2TiO4) .
更新日期:2021-03-01
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