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Mapping the friction between railway wheels and rails focusing on environmental conditions

Zhu, Y. ; Lyu, Y. LU orcid and Olofsson, U. (2015) In Wear 324-325. p.122-128
Abstract

The coefficient of friction between railway wheels and rails is crucial to the railway adhesion, further greatly affecting railway operation and maintenance. Since the wheel-rail system is an open system, the coefficient of friction is significantly influenced not only by various types of contaminants but also by environmental conditions. This paper conducted a set of pin-on-disc tests measuring the coefficient of friction focusing on the influence of environmental conditions (relative humidity and temperature). In addition, influences of iron oxides, leaves and glycol/water mixtures on the coefficient of friction were also studied. The friction results are shown in the form of friction maps. Results indicate that iron oxides on the... (More)

The coefficient of friction between railway wheels and rails is crucial to the railway adhesion, further greatly affecting railway operation and maintenance. Since the wheel-rail system is an open system, the coefficient of friction is significantly influenced not only by various types of contaminants but also by environmental conditions. This paper conducted a set of pin-on-disc tests measuring the coefficient of friction focusing on the influence of environmental conditions (relative humidity and temperature). In addition, influences of iron oxides, leaves and glycol/water mixtures on the coefficient of friction were also studied. The friction results are shown in the form of friction maps. Results indicate that iron oxides on the surfaces can prevent the samples from large friction reduction particularly at the low temperature. The friction mechanism is also discussed with the help of scanning electron microscopy photos. On the other hand, effects of leaves in reducing the coefficient of friction become limited with the presence of the glycol/water mixture.

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author
; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Mapping, Rail-wheel tribology, Sliding friction, Steel, Traction
in
Wear
volume
324-325
pages
7 pages
publisher
Elsevier
external identifiers
  • scopus:84921533910
ISSN
0043-1648
DOI
10.1016/j.wear.2014.12.028
language
English
LU publication?
no
additional info
Funding Information: This project is supported by the National Natural Science Foundation of China (Grant no. 51405431 ). and the China Postdoctoral Science Foundation (Grant no. 2014M560479 ). The work was performed under the auspices of the KTH Railway group. Publisher Copyright: © 2014 Elsevier B.V.
id
a7c66679-a8e3-4648-996f-ecfbb0418e35
date added to LUP
2021-10-18 21:51:25
date last changed
2022-02-09 17:26:38
@article{a7c66679-a8e3-4648-996f-ecfbb0418e35,
  abstract     = {{<p>The coefficient of friction between railway wheels and rails is crucial to the railway adhesion, further greatly affecting railway operation and maintenance. Since the wheel-rail system is an open system, the coefficient of friction is significantly influenced not only by various types of contaminants but also by environmental conditions. This paper conducted a set of pin-on-disc tests measuring the coefficient of friction focusing on the influence of environmental conditions (relative humidity and temperature). In addition, influences of iron oxides, leaves and glycol/water mixtures on the coefficient of friction were also studied. The friction results are shown in the form of friction maps. Results indicate that iron oxides on the surfaces can prevent the samples from large friction reduction particularly at the low temperature. The friction mechanism is also discussed with the help of scanning electron microscopy photos. On the other hand, effects of leaves in reducing the coefficient of friction become limited with the presence of the glycol/water mixture.</p>}},
  author       = {{Zhu, Y. and Lyu, Y. and Olofsson, U.}},
  issn         = {{0043-1648}},
  keywords     = {{Mapping; Rail-wheel tribology; Sliding friction; Steel; Traction}},
  language     = {{eng}},
  month        = {{02}},
  pages        = {{122--128}},
  publisher    = {{Elsevier}},
  series       = {{Wear}},
  title        = {{Mapping the friction between railway wheels and rails focusing on environmental conditions}},
  url          = {{http://dx.doi.org/10.1016/j.wear.2014.12.028}},
  doi          = {{10.1016/j.wear.2014.12.028}},
  volume       = {{324-325}},
  year         = {{2015}},
}