The friction force in mechanical systems not only reduces their efficiency but also causes wear in the machine components, resulting in financial losses. As in every sector, in agricultural production, the problem of abrasion, particularly in soil tillage, is extremely important. Studies have been conducted examining the different methods for minimizing wear on tillage machinery. In this study, the cultivator blades of a boron-alloyed 30MnB5 steel substrate were coated with WC–10Co–4Cr ceramic powder by way of the Diamond Jet high-velocity oxygen-fuel (DJ-HVOF) technique. The microstructure of the sample and its wear properties under field conditions were then investigated. The microstructure, porosity, hardness, surface roughness and wear properties of the samples were revealed. The coating was observed to be well bonded, both mechanically and metallurgically, and the hardness of the coating was three times higher than that of the uncoated substrate material. In the field trials, the wear was found to be six times lower due to the hardness of the WC–10Co–4Cr coating and the hard carbide phases in its microstructure. As a result, the HVOF coating was shown to minimize wear, which is a big problem in tillage machinery. This can extend the economic life of machinery and make agricultural production more efficient.

中文翻译：

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DJ-HVOF对耕耘机叶片WC-10Co-4Cr涂层的显微组织和磨损性能

机械系统中的摩擦力不仅会降低其效率，还会导致机器部件磨损，从而造成经济损失。与农业生产的各个部门一样，磨损问题，特别是在土壤耕作中，极为重要。已经进行了研究，检查了减少耕作机械磨损的不同方法。在这项研究中，采用金刚石喷射高速氧燃料 (DJ-HVOF) 技术在硼合金 30MnB5 钢基材的耕耘机叶片上涂覆 WC-10Co-4Cr 陶瓷粉末。然后研究了样品的微观结构及其在现场条件下的磨损性能。揭示了样品的微观结构、孔隙率、硬度、表面粗糙度和磨损性能。观察到涂层结合良好，在机械和冶金方面，涂层的硬度是未涂层基材的三倍。在现场试验中，发现由于 WC-10Co-4Cr 涂层的硬度和其微观结构中的硬质碳化物相，磨损降低了六倍。因此，HVOF 涂层被证明可以最大限度地减少磨损，这在耕作机械中是一个大问题。这可以延长机械的经济寿命，使农业生产更有效率。这是耕作机械的一个大问题。这可以延长机械的经济寿命，使农业生产更有效率。这是耕作机械的一个大问题。这可以延长机械的经济寿命，使农业生产更有效率。