Abstract

Environmentally friendly wear-resistant coatings deposited by a developed rotating flexible tool (metal wire brush) form a layer without visible boundaries inside the coating with a thickness of 3–7 μm. Durometric studies of single-layer coatings (copper, brass, bronze, and antifriction composite consisting of tin, lead, and zinc) and two-layer coatings in combinations of copper-composite and brass-composite showed that the hardness of the latter exceeds the surface hardness of steel samples by 1.2–1.9 times. Single-layer copper M1 (HV_0.02 from 1862 to 2254) and two-layer M1-composite (HV_0.02 from 1960 to 2362) coatings have the highest microhardness. X-ray tensometry showed that cold-hardening is formed in the surface layer of the sample under the coating: the calculated values of σ_φ are σ_φ = 225 MPa for the copper layer and σ_φ = –280 MPa for the steel base adjacent to the copper. Metallographic studies showed that the formation of the two types of surface structures differs by the absence or presence of an intermediate zone located between the coating and the deformed base. The intermediate zone is formed when the tension is more than 1.8–2 mm. According to a qualitative estimate, the continuity of the coatings is 90–100%, and the porosity is 18–25%.

中文翻译：

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旋转丝工具沉积金属涂层的研究

摘要

由开发的旋转柔性工具（金属丝刷）沉积的环保耐磨涂层在涂层内部形成无可见边界的层，厚度为3–7μm。单层涂层（由锡，铅和锌组成的铜，黄铜，青铜和减摩复合材料）和铜复合材料和黄铜复合材料的组合的两层涂层的耐久力研究表明，后者的硬度超过了钢材样品的表面硬度提高了1.2-1.9倍。单层铜M1（1862至2254的HV _0.02）和两层M1复合材料（HV _0.02从1960年到2362年）的涂层具有最高的显微硬度。透视tensometry显示形成在涂层下的样品的表面层，其冷硬化：σ的计算值_φ是σ _φ = 225兆帕的铜层和σ _φ = -280兆帕相邻钢基到铜。金相研究表明，两种类型的表面结构的形成因涂层或变形基体之间是否存在中间区而有所不同。当张力大于1.8–2 mm时，将形成中间区域。根据定性估计，涂层的连续性为90–100％，孔隙率为18–25％。