title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐµÐ¹ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ Ð´Ð¸ÑÐºÐ°, Ð´Ð»Ñ Ð·Ð°ÑÐ¸ÑÑ Ð¿Ð¾Ð²ÐµÑÑ Ð½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð¸ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð²ÑÐµÐ´Ð½ÑÑ Ð²ÑÐ±ÑÐ¾ÑÐ¾Ð² ÑÐ²ÐµÑÐ´ÑÑ ÑÐ°ÑÑÐ¸Ñ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð¹ Ð¿ÑÐ»Ð¸, Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð²ÑÑÐ¾ÐºÐ¾ÑÐºÐ¾ÑÐ¾ÑÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of a functional coating of the working surfaces of the brake disc, to protect the surface layer and reduce harmful emissions of solid particles of brake dust, using the technology of high-speed ther-mal spraying
Creators: name: ÐÐ¸ÑÐ³Ð¾ÑÐ¾Ð´ÑÐºÐ°Ñ, ÐÐ»Ð°Ð´Ð¸ÑÐ»Ð°Ð²Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: Ð¢Ð¾ÑÐ¼Ð¾Ð·Ð°
ÐÐ¾Ð»ÑÑÑÐ°Ð¼
ÐÐ°ÑÐ±Ð¸Ð´Ñ
ÐÐ»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ðµ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ðµ
ÐÐ´Ð³ÐµÐ·Ð¸Ñ
ÑÐ¾Ð»ÑÐ¸Ð½Ð° Ð¿Ð¾ÐºÑÑÑÐ¸Ñ
Ð¼Ð¸ÐºÑÐ¾ÑÐ²ÐµÑÐ´Ð¾ÑÑÑ
coating thickness
microhardness

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÑÐ½ÐºÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ ÑÐ°Ð±Ð¾ÑÐ¸Ñ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐµÐ¹ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ Ð´Ð¸ÑÐºÐ°, Ð´Ð»Ñ Ð·Ð°ÑÐ¸ÑÑ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ ÑÐ»Ð¾Ñ Ð¸ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð²ÑÐµÐ´Ð½ÑÑ Ð²ÑÐ±ÑÐ¾ÑÐ¾Ð² ÑÐ²ÐµÑÐ´ÑÑ ÑÐ°ÑÑÐ¸Ñ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð¹ Ð¿ÑÐ»Ð¸, c Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¸ Ð²ÑÑÐ¾ÐºÐ¾ÑÐºÐ¾ÑÐ¾ÑÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸ÑÂ». Ð ÑÐ°Ð±Ð¾ÑÐµ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ ÑÐ¾Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð°Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð²ÑÑÐ¾ÐºÐ¾ÑÐºÐ¾ÑÐ¾ÑÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð¾ÑÐµÑÐ¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ñ (HVOF, HVAF), Ð¿Ð¾Ð·Ð²Ð¾Ð»ÑÑÑÐ°Ñ Ð·Ð½Ð°ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾ ÑÐ»ÑÑÑÐ¸ÑÑ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° Ð½Ð°Ð½Ð¾ÑÐ¸Ð¼Ð¾Ð³Ð¾ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ Ð½Ð° ÑÐ¾ÑÐ¼Ð¾Ð·Ð½ÑÐµ Ð´Ð¸ÑÐºÐ¸ Ð¸ ÑÐ½Ð¸Ð·Ð¸ÑÑ ÐºÐ¾Ð»Ð¸ÑÐµÑÑÐ²Ð¾ Ð²ÑÐ±ÑÐ¾ÑÐ¾Ð² ÑÐ²ÐµÑÐ´ÑÑ ÑÐ°ÑÑÐ¸Ñ Ð² Ð°ÑÐ¼Ð¾ÑÑÐµÑÑ. ÐÐ°Ð´Ð°ÑÐ¸ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: â Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¾ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÑÐ°Ð½ÑÐ¿Ð¾ÑÑÐ½ÑÑ ÑÑÐµÐ´ÑÑÐ², ÑÑÐ»Ð¾Ð²Ð¸ÑÑ ÑÐ°Ð±Ð¾ÑÑ, Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÐµÐ¼ÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°Ñ, ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÑ Ðº ÐºÐ°ÑÐµÑÑÐ²Ñ Ð¸ Ð²ÑÐ±ÑÐ¾ÑÑ ÑÐ²ÐµÑÐ´ÑÑ ÑÐ°ÑÑÐ¸Ñ; â Ð°Ð½Ð°Ð»Ð¸Ð· Ð¿ÐµÑÐ¸Ð¾Ð´Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÐµÑÐµÑÑÐ²ÐµÐ½Ð½Ð¾Ð¹ Ð¸ Ð·Ð°ÑÑÐ±ÐµÐ¶Ð½Ð¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¾ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ñ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ ÑÐ¿ÑÐ¾ÑÐ½ÐµÐ½Ð¸Ñ ÑÐ°Ð±Ð¾ÑÐµÐ¹ Ð¿Ð¾Ð²ÐµÑÑÐ½Ð¾ÑÑÐ¸ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ Ð´Ð¸ÑÐºÐ°, Ð¸Ñ ÑÑÑÐ½Ð¾ÑÑÑ, Ð¿ÑÐµÐ¸Ð¼ÑÑÐµÑÑÐ²Ð° Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐºÐ¸; â Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾Ð´Ð¾Ð±ÑÐ°ÑÑ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð²; â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÑ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°; â Ð¿Ð¾Ð´Ð¾Ð±ÑÐ°ÑÑ ÑÐµÐ¶Ð¸Ð¼ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ñ; â Ð¿ÑÐ¾Ð²ÐµÑÑÐ¸ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¾Ð±ÑÐ°Ð·ÑÐ¾Ð²: Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ ÑÐ¾Ð»ÑÐ¸Ð½Ñ Ð¿Ð¾ÐºÑÑÑÐ¸Ñ, Ð¼Ð¸ÐºÑÐ¾ÑÐ²ÐµÑÐ´Ð¾ÑÑÑ, Ð¿Ð¾ÑÐ¸ÑÑÐ¾ÑÑÑ Ð¸ Ð°Ð´Ð³ÐµÐ·Ð¸Ñ; â Ð¿Ð¾ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ Ð´Ð°ÑÑ ÑÐµÐºÐ¾Ð¼ÐµÐ½Ð´Ð°ÑÐ¸Ð¸ Ð¿Ð¾ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ ÑÐ¾ÑÑÐ°Ð²Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð¸ ÑÐµÐ¶Ð¸Ð¼Ñ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ñ. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´ÑÑÑÑÑ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ðµ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð²: ÐºÐ°ÑÐ±Ð¸Ð´ Ð²Ð¾Ð»ÑÑÑÐ°Ð¼Ð° (WC), ÐºÐ°ÑÐ±Ð¸Ð´ Ð²Ð¾Ð»ÑÑÑÐ°Ð¼Ð° Ð¸ ÑÑÐ¾Ð¼Ð° (WC-Cr3C2), ÐºÐ°ÑÐ±Ð¸Ð´ ÑÑÐ¾Ð¼Ð° Ð¸ Ð½Ð¸ÑÑÐ¾Ð¼ (Cr3C2-NiCr). ÐÐ¾Ð´Ð¾Ð±ÑÐ°Ð½Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð°Ð»ÑÐ½ÑÐµ ÑÐµÐ¶Ð¸Ð¼Ñ Ð½Ð°Ð¿ÑÐ»ÐµÐ½Ð¸Ñ Ð´Ð»Ñ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÑÑÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¹. ÐÑÑÑÐ¸Ðµ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ Ð¿Ð¾ Ð¼Ð¸ÐºÑÐ¾ÑÐ²ÐµÑÐ´Ð¾ÑÑÐ¸ Ð½Ð°Ð±Ð»ÑÐ´Ð°ÑÑÑÑ Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð½Ð° Ð±Ð°Ð·Ðµ ÐºÐ°ÑÐ±Ð¸Ð´Ð° Ð²Ð¾Ð»ÑÑÑÐ°Ð¼Ð° Ð¸ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÐµÑ 1343 HV, Ð¿ÑÐ¸ ÑÑÐ¾Ð¼ Ð¿Ð¾ÑÐ¸ÑÑÐ¾ÑÑÑ Ð¼ÐµÐ½ÐµÐµ 0.5 %, Ð°Ð´Ð³ÐµÐ·Ð¸Ñ Ð±Ð¾Ð»ÐµÐµ 80 ÐÐÐ°, ÑÑÐ¾ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÑÐµÑ ÑÑÐµÐ±Ð¾Ð²Ð°Ð½Ð¸ÑÐ¼, Ð¿ÑÐµÐ´ÑÑÐ²Ð»ÑÐµÐ¼ÑÐµ Ðº Ð¿Ð¾ÐºÑÑÑÐ¸Ñ ÑÐ°Ð±Ð¾ÑÐµÐ³Ð¾ ÑÐ¾ÑÐ¼Ð¾Ð·Ð½Ð¾Ð³Ð¾ Ð´Ð¸ÑÐºÐ°.
description: Theme of qualification work: Â«Development of a functional coating of the working surfaces of the brake disc, to protect the surface layer and reduce harmful emissions of solid particles of brake dust, using the technology of high-speed thermal sprayingÂ». The paper considers the modern technology of high-speed thermal spraying (HVOF, HVAF), which allows to significantly improve the properties of the applied coating on brake discs and reduce the amount of particulate emissions into the atmosphere. Tasks of final qualifying work: â analysis of scientific and technical information about the brake system of vehicles, working conditions, materials used, quality requirements and particulate emissions; â analysis of periodic domestic and foreign literature on existing technologies for hardening the working surface of the brake disc, their essence, advantages and disadvantages; â based on the analysis of the literature, select powder compositions; â develop a methodology for conducting the experiment; â choose the spraying mode; â to test the obtained samples: to determine the coating thickness, micro hard-ness, porosity and adhesion; - Based on the test results, give recommendations on the chemical composi-tion of the powder and the spraying mode. The following powder compositions are investigated in the work: tungsten carbide (WC), tungsten and chromium carbide (WC-Cr3C2), chromium carbide and nichrome (Cr3C2-NiCr). Optimum spraying modes for corresponding compositions are selected. The best performance in terms of micro hardness is observed in powder based on tungsten carbide and is 1343 HV, while the porosity is less than 0.5%, adhesion is more than 80 MPa, which meets the requirements for coating a working brake disc.