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Tribology and airborne particle emission of laser-cladded fe-based coatings versus non-asbestos organic and low-metallic brake materials

Lyu, Yezhe LU orcid ; Leonardi, Mara ; Mancini, Alessandro ; Wahlström, Jens LU orcid and Olofsson, Ulf (2021) In Metals 11(11).
Abstract

Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome this, a commercial non-asbestos organic (NAO) brake material is tested against Fe-based laser-cladded and traditional cast-iron brake rotors. Two low-metallic brake pad materials are also tested as references. The materials’ coefficients of friction, specific wear rates and particle number concentrations are evaluated. The results indicate that the NAO brake material showed lower wear and had fewer particle emissions than the low-metallic... (More)

Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome this, a commercial non-asbestos organic (NAO) brake material is tested against Fe-based laser-cladded and traditional cast-iron brake rotors. Two low-metallic brake pad materials are also tested as references. The materials’ coefficients of friction, specific wear rates and particle number concentrations are evaluated. The results indicate that the NAO brake material showed lower wear and had fewer particle emissions than the low-metallic brake materials when deployed against both cast iron and laser-cladded brake rotors. The NAO/laser-cladding friction pairing showed wear, particle concentration and fraction of fine particles (sub 1 µm) equivalent to those of the low-metallic/cast-iron friction pairing, creating significant potential for application in refurbishing worn-out cast-iron brake rotors.

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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Airborne particle emission, Laser cladding, Low-metallic brake pad, Non-asbestos organic
in
Metals
volume
11
issue
11
article number
1703
publisher
MDPI AG
external identifiers
  • scopus:85117953941
ISSN
2075-4701
DOI
10.3390/met11111703
language
English
LU publication?
yes
additional info
Funding Information: This research was funded by [FORMAS: Swedish Research Council for Sustainable Development] grant number [2020-02302] (Nescup project). The research also received funding from [European Union?s Horizon 2020 Research and Innovation Programme] grant number [954377] (nPETS project). Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
id
9acefa25-f2e0-49ae-819f-c218e0747c2b
date added to LUP
2021-11-06 07:54:53
date last changed
2022-04-27 05:32:44
@article{9acefa25-f2e0-49ae-819f-c218e0747c2b,
  abstract     = {{<p>Laser cladding is a promising surface treatment for refurbishing worn-out cast-iron brake rotors. Previous studies on laser-cladded brake rotors have demonstrated their extensively higher wear and greater airborne particle emissions, compared with traditional cast iron rotors. In order to overcome this, a commercial non-asbestos organic (NAO) brake material is tested against Fe-based laser-cladded and traditional cast-iron brake rotors. Two low-metallic brake pad materials are also tested as references. The materials’ coefficients of friction, specific wear rates and particle number concentrations are evaluated. The results indicate that the NAO brake material showed lower wear and had fewer particle emissions than the low-metallic brake materials when deployed against both cast iron and laser-cladded brake rotors. The NAO/laser-cladding friction pairing showed wear, particle concentration and fraction of fine particles (sub 1 µm) equivalent to those of the low-metallic/cast-iron friction pairing, creating significant potential for application in refurbishing worn-out cast-iron brake rotors.</p>}},
  author       = {{Lyu, Yezhe and Leonardi, Mara and Mancini, Alessandro and Wahlström, Jens and Olofsson, Ulf}},
  issn         = {{2075-4701}},
  keywords     = {{Airborne particle emission; Laser cladding; Low-metallic brake pad; Non-asbestos organic}},
  language     = {{eng}},
  number       = {{11}},
  publisher    = {{MDPI AG}},
  series       = {{Metals}},
  title        = {{Tribology and airborne particle emission of laser-cladded fe-based coatings versus non-asbestos organic and low-metallic brake materials}},
  url          = {{http://dx.doi.org/10.3390/met11111703}},
  doi          = {{10.3390/met11111703}},
  volume       = {{11}},
  year         = {{2021}},
}