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On the influence of carbides in laser-cladded coating on friction, wear, and airborne particle emissions of disc brakes

Dridi, Bassent LU ; Hjelm, Rikard LU ; Lattanzi, Lucia ; Awe, Samuel ; Pagels, Joakim LU ; Wahlström, Jens LU orcid and Lyu, Yezhe LU orcid (2025) In Wear 576-577.
Abstract

Recently, it has become a focus to reduce non-exhaust aerosol emissions from the transport sector. One possible way to decrease brake particle emissions is by laser-cladding coatings onto brake discs. This work tested five different laser-cladding coated brake discs against a non-asbestos organic brake pad. The performance of these coatings was compared to a commercial grey cast iron brake disc tested against both low-metallic and non-asbestos organic brake pads. A specialized experimental system composed of a pin-on-disc tribometer, an aerodynamic particle sizer (APS) spectrometer, and a condensation particle counter (CPC) was employed to compare wear mass loss, coefficient of friction, particle number and mass concentration, and size... (More)

Recently, it has become a focus to reduce non-exhaust aerosol emissions from the transport sector. One possible way to decrease brake particle emissions is by laser-cladding coatings onto brake discs. This work tested five different laser-cladding coated brake discs against a non-asbestos organic brake pad. The performance of these coatings was compared to a commercial grey cast iron brake disc tested against both low-metallic and non-asbestos organic brake pads. A specialized experimental system composed of a pin-on-disc tribometer, an aerodynamic particle sizer (APS) spectrometer, and a condensation particle counter (CPC) was employed to compare wear mass loss, coefficient of friction, particle number and mass concentration, and size distribution. The worn surfaces of pads and discs were analysed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that the tungsten carbide-reinforced laser-cladded coating exhibited the lowest wear and particle number concentration compared to the other coatings and the commercial references.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Automotive brake materials, Friction and wear, Laser-cladding, Particle emissions, Scanning electron microscopy
in
Wear
volume
576-577
article number
206107
pages
10 pages
publisher
Elsevier
external identifiers
  • scopus:105004662936
ISSN
0043-1648
DOI
10.1016/j.wear.2025.206107
language
English
LU publication?
yes
id
5055b46f-adb9-4fe1-b8bd-25f51d25fe42
date added to LUP
2025-05-22 06:40:43
date last changed
2025-05-27 12:08:30
@article{5055b46f-adb9-4fe1-b8bd-25f51d25fe42,
  abstract     = {{<p>Recently, it has become a focus to reduce non-exhaust aerosol emissions from the transport sector. One possible way to decrease brake particle emissions is by laser-cladding coatings onto brake discs. This work tested five different laser-cladding coated brake discs against a non-asbestos organic brake pad. The performance of these coatings was compared to a commercial grey cast iron brake disc tested against both low-metallic and non-asbestos organic brake pads. A specialized experimental system composed of a pin-on-disc tribometer, an aerodynamic particle sizer (APS) spectrometer, and a condensation particle counter (CPC) was employed to compare wear mass loss, coefficient of friction, particle number and mass concentration, and size distribution. The worn surfaces of pads and discs were analysed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. The results showed that the tungsten carbide-reinforced laser-cladded coating exhibited the lowest wear and particle number concentration compared to the other coatings and the commercial references.</p>}},
  author       = {{Dridi, Bassent and Hjelm, Rikard and Lattanzi, Lucia and Awe, Samuel and Pagels, Joakim and Wahlström, Jens and Lyu, Yezhe}},
  issn         = {{0043-1648}},
  keywords     = {{Automotive brake materials; Friction and wear; Laser-cladding; Particle emissions; Scanning electron microscopy}},
  language     = {{eng}},
  month        = {{08}},
  publisher    = {{Elsevier}},
  series       = {{Wear}},
  title        = {{On the influence of carbides in laser-cladded coating on friction, wear, and airborne particle emissions of disc brakes}},
  url          = {{http://dx.doi.org/10.1016/j.wear.2025.206107}},
  doi          = {{10.1016/j.wear.2025.206107}},
  volume       = {{576-577}},
  year         = {{2025}},
}