Abstract—

The study of the structural-phase state and tribotechnical properties of antifriction gas-thermal coatings made of aluminum alloy AlSi12, welding bronze CuSi3Mn1, as well as composite material CuSi3Mn1 + AlSi12 and a coating of bronze CuSn10P1 obtained by centrifugal induction surfacing was carried out. It is shown that composite gas-thermal coatings from CuSi3Mn1 + AlSi12 after spraying include Cu, Al, Cu₉Al₄, CuAl₂, Cu₃Al, Si, and Al₂O₃ phases. The matrix phase of the bronze interlayers is doped with aluminum, while the Al interlayers are doped with copper. It has been established that annealing of coatings CuSi3Mn1 + AlSi12 at temperatures of 175 and 225°С for 2 h leads to the release of an additional amount of intermetallic compounds in them and an increase in their microhardness. It is shown that composite gas-thermal coatings have ≈1.2–1.7 times higher wear resistance in the environment of I-20A and Litol-24 lubricants compared to coatings of CuSn10P1 bronze. Annealing of composite coatings from CuSi3Mn1 + AlSi12 leads to an increase in their wear resistance in the environment of I-20A liquid lubricant up to 30% and Litol-24 up to 20% compared to the initial state. The coefficients of friction of all antifriction coatings based on copper in the environment of the I-20A lubricant did not exceed 0.08, and in the environment of the Litol-24 lubricant, 0.10.

中文翻译：

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液体和油脂润滑剂中铜铝减摩气体热涂层的摩擦技术性能

摘要-

对铝合金AlSi12、焊接青铜CuSi3Mn1、复合材料CuSi3Mn1+AlSi12和离心感应堆焊青铜CuSn10P1涂层的结构相状态和摩擦技术性能进行了研究。结果表明，喷涂后的CuSi3Mn1+AlSi12复合气热涂层含有Cu、Al、Cu ₉ Al ₄、CuAl ₂、Cu ₃ Al、Si和Al ₂ O ₃相。青铜中间层的基体相掺杂有铝，而铝中间层的基体相掺杂有铜。已经确定，在 175 和 225°С 的温度下对 CuSi3Mn1 + AlSi12 涂层进行 2 小时的退火会导致其中释放出额外量的金属间化合物，并提高其显微硬度。结果表明，与 CuSn10P1 青铜涂层相比，复合气热涂层在 I-20A 和 Litol-24 润滑剂环境中的耐磨性高出约 1.2-1.7 倍。CuSi3Mn1 + AlSi12 复合涂层的退火使其在 I-20A 液体润滑剂环境中的耐磨性比初始状态提高了 30%，在 Litol-24 环境中提高了 20%。所有基于铜的减摩涂层在I-20A润滑剂环境中的摩擦系数不超过0.08，而在Litol-24润滑剂环境中为0.10。