Effect of humidity on the tribological behaviour and airborne particle emissions of railway brake block materials
Lyu, Yezhe LU
; Bergseth, Ellen
; Tu, Minghui
and Olofsson, Ulf
(2018)
In Tribology International
118.
p.360-367
- Abstract
A pin-on-disc tribometer placed in a one-way ventilated chamber was used to investigate the effect of relative humidity on the tribology and airborne particle emission of three commercial railway brake block materials (grey cast iron, organic composite, and sintered). Cast iron showed the highest friction coefficient, particle emission and wear loss and organic composite exhibited the lowest. The generation of oxide layers on the worn cast iron surface resulted in a decrease in friction, particle emission and wear. Moisture adsorption by the organic composite leads to decreased friction coefficient and particle emission with increasing humidity. Relative humidity does not affect the friction coefficient of the sintered brake block,... (More)
A pin-on-disc tribometer placed in a one-way ventilated chamber was used to investigate the effect of relative humidity on the tribology and airborne particle emission of three commercial railway brake block materials (grey cast iron, organic composite, and sintered). Cast iron showed the highest friction coefficient, particle emission and wear loss and organic composite exhibited the lowest. The generation of oxide layers on the worn cast iron surface resulted in a decrease in friction, particle emission and wear. Moisture adsorption by the organic composite leads to decreased friction coefficient and particle emission with increasing humidity. Relative humidity does not affect the friction coefficient of the sintered brake block, whose particle emission and wear loss significantly decline with increasing relative humidity.
(Less)
- author
- Lyu, Yezhe
LU
; Bergseth, Ellen
; Tu, Minghui
and Olofsson, Ulf
- publishing date
- 2018-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Airborne particles, Brake block, Humidity, Pin-on-disc
- in
- Tribology International
- volume
- 118
- pages
- 8 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85032008346
- ISSN
- 0301-679X
- DOI
- 10.1016/j.triboint.2017.10.011
- language
- English
- LU publication?
- no
- additional info
- Funding Information: This research was performed under the auspices of the KTH Railway Group, with the financial support of Stockholm Country Council , Traffic Administration and Swedish Transport Administration . Y. Lyu is grateful for the scholarship from the China Scholarship Council (CSC). Publisher Copyright: © 2017 Elsevier Ltd
- id
- 7fba6590-37a7-40df-8219-6b1abcc3a072
- date added to LUP
- 2021-10-18 21:45:22
- date last changed
- 2022-04-27 05:05:09
@article{7fba6590-37a7-40df-8219-6b1abcc3a072,
abstract = {{<p>A pin-on-disc tribometer placed in a one-way ventilated chamber was used to investigate the effect of relative humidity on the tribology and airborne particle emission of three commercial railway brake block materials (grey cast iron, organic composite, and sintered). Cast iron showed the highest friction coefficient, particle emission and wear loss and organic composite exhibited the lowest. The generation of oxide layers on the worn cast iron surface resulted in a decrease in friction, particle emission and wear. Moisture adsorption by the organic composite leads to decreased friction coefficient and particle emission with increasing humidity. Relative humidity does not affect the friction coefficient of the sintered brake block, whose particle emission and wear loss significantly decline with increasing relative humidity.</p>}},
author = {{Lyu, Yezhe and Bergseth, Ellen and Tu, Minghui and Olofsson, Ulf}},
issn = {{0301-679X}},
keywords = {{Airborne particles; Brake block; Humidity; Pin-on-disc}},
language = {{eng}},
pages = {{360--367}},
publisher = {{Elsevier}},
series = {{Tribology International}},
title = {{Effect of humidity on the tribological behaviour and airborne particle emissions of railway brake block materials}},
url = {{http://dx.doi.org/10.1016/j.triboint.2017.10.011}},
doi = {{10.1016/j.triboint.2017.10.011}},
volume = {{118}},
year = {{2018}},
}