Improvement of Tribotechnical Parameters of Bronze Parts by Applying a Molybdenum Coating

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL Journal of Friction and Wear Pub Date : 2023-09-25 DOI:10.3103/S1068366623030030

V. B. Balyakin, S. V. Falaleev, D. E. Dolgih, A. A. Yurtaev

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Abstract—

The results of experimental determination of the wear intensity coefficient and the friction coefficient in the steel-bronze BrNBT and steel–molybdenum coating contact are shown. To determine the tribotechnical parameters of the coating, experiments were carried out on a Tribometer TRB automated friction machine of the Swiss company ANTON PAAR according to the ball–disk scheme. It is shown that the average coefficient of friction for a sample with a molybdenum coating is almost two times lower than for a sample without a coating. With the help of the SURTRONIC 25 profile meter, a profilogram was obtained to determine the coefficient of wear intensity. At a run of 50,000 m, the coefficient of wear intensity for a sample made of BrNBT material without coating at a maximum contact voltage of 507 MPa is 2.48 × 10^–4 mm³/m, and for a sample with a molybdenum coating was 1.98 × 10^–5 mm³/m, which is 12.5 times less. Recommendations for the use of a molybdenum antifriction coating are given.

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应用钼涂层改善青铜零件的摩擦学参数

文摘——给出了钢-青铜-BrNBT与钢-钼涂层接触磨损强度系数和摩擦系数的实验测定结果。为了确定涂层的摩擦技术参数，根据球-盘方案，在瑞士ANTON PAAR公司的Tribometer TRB自动摩擦机上进行了实验。结果表明，具有钼涂层的样品的平均摩擦系数几乎是没有涂层的样品低两倍。在SURTRONIC25型面仪的帮助下，获得了用于确定磨损强度系数的轮廓图。在50000 m的行程中，由无涂层的BrNBT材料制成的样品在507 MPa的最大接触电压下的磨损强度系数为2.48×10–4 mm3/m，而具有钼涂层的样品的磨损强度为1.98×10-5 mm3/m。给出了使用钼减摩涂层的建议。

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来源期刊

Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.