Coating is an effective method to enhance the surface properties of rotary tillage blades. In order to improve the wear resistance and anti-adhesive properties of rotary blades, four different materials TiAlN, CrN, PTFE and Ni-P-PTFE were selected to modified original blades. The mechanical properties, X-ray diffraction (XRD), wear performance, scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), soil cutting resistance were tested and analyzed to investigate wear mechanism and evaluate the improvement of tribological and anti-adhesive properties of different coating methods. The 14 days field test was carried on to verify the experimental results. The results showed that metal coatings (TiAlN, CrN) had higher flexural strength and hardness than plastic coatings (PTFE based coatings). All coated blades possess better wear and anti-adhesive properties. PTFE based coating had better wear resistance, and Ni-P-PTFE coating had the lowest the average friction coefficient (0.32) and the lowest weight loss rate (0.4 g/ha) after 14 days operating in the field. And the Ni-P-PTFE coated blade also had the lowest soil cutting resistance. Combined with economic analysis, PTFE coating is more suitable and economically method to improve the wear resistance and anti-adhesive properties of rotary blades, and further extended their service life.

涂层是增强旋耕刀片表面性能的有效方法。为了提高旋转叶片的耐磨性和抗粘性能，选择了四种不同的材料TiAlN，CrN，PTFE和Ni-P-PTFE来改进原始叶片。测试并分析了力学性能，X射线衍射（XRD），磨损性能，带能谱仪（EDS）的扫描电子显微镜（SEM），耐土壤切割性，以研究磨损机理并评估摩擦学和抗粘连性的改进不同涂层方法的性能。进行了14天的现场测试以验证实验结果。结果表明，金属涂层（TiAlN，CrN）比塑料涂层（PTFE基涂层）具有更高的弯曲强度和硬度。所有涂层刀片均具有更好的耐磨性和抗粘性能。PTFE基涂层具有更好的耐磨性，Ni-P-PTFE涂层在现场运行14天后具有最低的平均摩擦系数（0.32）和最低的失重率（0.4 g / ha）。而且涂有Ni-P-PTFE的刀片的耐土壤切割性也最低。结合经济分析，PTFE涂层是一种更合适，更经济的方法，可以提高旋转叶片的耐磨性和抗粘性能，并进一步延长其使用寿命。而且涂有Ni-P-PTFE的刀片的耐土壤切割性也最低。结合经济分析，PTFE涂层是一种更合适，更经济的方法，可以提高旋转叶片的耐磨性和抗粘性能，并进一步延长其使用寿命。而且涂有Ni-P-PTFE的刀片的耐土壤切割性也最低。结合经济分析，PTFE涂层是一种更合适，更经济的方法，可以提高旋转叶片的耐磨性和抗粘性能，并进一步延长其使用寿命。