Simultaneous enhancement of friction and wear resistance for high‐speed braking system with Cr 3 C 2 ‐NiCr‐coated brake disk
Source abstract
Abstract
Abstract The current steel brake disk and Cu‐based powder metallurgy brake pad used in high‐speed trains suffer fading coefficient of friction (COF) and excessive wear, resulting in a shorten lifetime and numerous exhausted brake disks. High‐velocity oxygen fuel (HVOF) spray‐prepared coatings have proven their ability to improve COF and decrease wear rate. In this article, Cr 3 C 2 ‐NiCr coating was sprayed on a steel brake disk, and a series of emergency braking tests under dry and wet conditions were performed on a subscale brake dynamometer, to comprehensively evaluate the braking performance of coated brake disk. The results showed that the coated brake disk exhibits a higher COF at 380 km/h, which effectively inhibits the COF fade compared to the steel brake disk case. The coated brake system also achieves a lower wear rate of the brake pad at 380 km/h, showing the desired high COF and low wear rate properties of the braking system. Additionally, the coated brake disk maintained surface integrity even after severe braking tests, highlighting its potential in the braking system. Based on the characterizations of wear debris and brake pads, a harder and thinner oxide friction film plays a crucial role in achieving the excellent braking performance in coated brake disk cases.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Brake Systems and Friction Analysis · Tribology and Wear Analysis · Electrical Contact Performance and Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laboratory of Special Ceramics and Powder Metallurgy, School of Materials Science and Engineering University of Science and Technology Beijing Beijing P. R. China
References (48)
Show source-provided references
1. 10.1016/j.matpr.2022.01.41010.1016/j.matpr.2022.01.410 ↗
2. 10.1016/j.wear.2014.11.01910.1016/j.wear.2014.11.019 ↗
3. 10.1016/j.triboint.2009.10.01210.1016/j.triboint.2009.10.012 ↗
4. 10.1016/j.wear.2019.20318210.1016/j.wear.2019.203182 ↗
5. 10.1016/j.engfailanal.2021.10531910.1016/j.engfailanal.2021.105319 ↗
6. 10.1007/s11249‐018‐1014‐110.1007/s11249‐018‐1014‐1 ↗
7. 10.1016/j.triboint.2020.10635710.1016/j.triboint.2020.106357 ↗
8. 10.1016/j.wear.2018.09.00610.1016/j.wear.2018.09.006 ↗
9. 10.1007/s11249‐015‐0605‐310.1007/s11249‐015‐0605‐3 ↗
10. 10.1016/j.triboint.2020.10668610.1016/j.triboint.2020.106686 ↗
11. 10.1007/s11249‐017‐0914‐910.1007/s11249‐017‐0914‐9 ↗
12. 10.1016/j.wear.2019.01.12610.1016/j.wear.2019.01.126 ↗
13. 10.1016/j.triboint.2017.11.03810.1016/j.triboint.2017.11.038 ↗
14. 10.3390/met1203046510.3390/met12030465 ↗
15. 10.1016/j.matpr.2021.10.25210.1016/j.matpr.2021.10.252 ↗
16. 10.1016/j.prostr.2021.10.12910.1016/j.prostr.2021.10.129 ↗
17. 10.1016/j.wear.2020.20355310.1016/j.wear.2020.203553 ↗
18. 10.1088/2053‐1591/ab61be10.1088/2053‐1591/ab61be ↗
19. 10.1016/j.surfcoat.2020.12597710.1016/j.surfcoat.2020.125977 ↗
20. 10.1016/j.triboint.2017.05.03010.1016/j.triboint.2017.05.030 ↗
21. 10.1016/j.wear.2008.07.00310.1016/j.wear.2008.07.003 ↗
22. 10.1007/s12541‐011‐0083‐y10.1007/s12541‐011‐0083‐y ↗
23. 10.4271/2008‐01‐258310.4271/2008‐01‐2583 ↗
24. 10.1016/j.ceramint.2021.10.10010.1016/j.ceramint.2021.10.100 ↗
25. 10.1016/j.triboint.2022.10814310.1016/j.triboint.2022.108143 ↗
26. 10.1016/j.triboint.2018.07.01210.1016/j.triboint.2018.07.012 ↗
27. China Railway Company.TJ/CL 307–2014 Temporary Technical Conditions for EMU Brake Pad 2014
28. 10.1016/j.wear.2020.20360910.1016/j.wear.2020.203609 ↗
29. 10.1016/j.wear.2015.09.00310.1016/j.wear.2015.09.003 ↗
30. 10.1016/j.engfailanal.2015.07.00210.1016/j.engfailanal.2015.07.002 ↗
31. 10.1016/j.wear.2021.20401910.1016/j.wear.2021.204019 ↗
32. 10.1016/j.ceramint.2019.07.11310.1016/j.ceramint.2019.07.113 ↗
33. 10.1016/0043‐1648(96)06983‐910.1016/0043‐1648(96)06983‐9 ↗
34. 10.1016/j.surfcoat.2021.12790410.1016/j.surfcoat.2021.127904 ↗
35. 10.1016/S0043‐1648(01)00873‐010.1016/S0043‐1648(01)00873‐0 ↗
36. 10.1016/j.wear.2020.20323710.1016/j.wear.2020.203237 ↗
37. 10.1016/j.triboint.2019.02.03410.1016/j.triboint.2019.02.034 ↗
38. 10.1016/j.wear.2005.01.03310.1016/j.wear.2005.01.033 ↗
39. 10.1016/j.triboint.2022.10798310.1016/j.triboint.2022.107983 ↗
40. 10.1016/j.triboint.2023.10884510.1016/j.triboint.2023.108845 ↗
41. Xu W · Influences of CrFe Granularity and Proportion on Braking Performance and Dynamic Response of Cu‐Based Pads · 2023 · 530
42. 10.1016/j.surfcoat.2022.12919310.1016/j.surfcoat.2022.129193 ↗
43. 10.1016/j.ijsolstr.2015.11.02610.1016/j.ijsolstr.2015.11.026 ↗
44. 10.1016/0043‐1648(79)90087‐510.1016/0043‐1648(79)90087‐5 ↗
45. 10.1016/j.wear.2008.11.02310.1016/j.wear.2008.11.023 ↗
46. 10.1016/j.wear.2011.05.03710.1016/j.wear.2011.05.037 ↗
47. 10.1016/j.wear.2009.12.00410.1016/j.wear.2009.12.004 ↗
48. 10.1016/j.wear.2007.03.01810.1016/j.wear.2007.03.018 ↗