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GALAS, R. KVARDA, D. OMASTA, M. KŘUPKA, I. HARTL, M.
Original Title
The role of constituents contained in water–based friction modifiers for top–of–rail application
Type
journal article in Web of Science
Language
English
Original Abstract
Top–of–rail friction modifiers (FMs) represent an up–to–date approach to managing adhesion in the wheel–rail interface. The aim of this study was to investigate the role of typical water–based FM constituents in terms of adhesion and film formation. The ball–on–disc apparatus was employed to reach a rolling–sliding contact. The friction behaviour of various complex substances with different compositions was investigated in terms of adhesion and wear. The results showed that less complex substances, e.g. free of particles for friction modification, can provide required adhesion. Moreover, adhesion was not markedly decreased when the contact was overdosed. The performance of water–based substance/FM is greatly affected by evaporation of water. Surface analyses showed that substances are able to reduce wear and surface damage.
Keywords
adhesion coefficient, friction layer, friction modifier, wheel–rail tribology
Authors
GALAS, R.; KVARDA, D.; OMASTA, M.; KŘUPKA, I.; HARTL, M.
Released
1. 1. 2018
Publisher
Elsevier
Location
United Kingdom
ISBN
0301-679X
Periodical
Tribology International
Year of study
117
Number
1
State
United Kingdom of Great Britain and Northern Ireland
Pages from
87
Pages to
97
Pages count
11
URL
http://www.sciencedirect.com/science/article/pii/S0301679X17303973
BibTex
@article{BUT139221, author="Radovan {Galas} and Daniel {Kvarda} and Milan {Omasta} and Ivan {Křupka} and Martin {Hartl}", title="The role of constituents contained in water–based friction modifiers for top–of–rail application", journal="Tribology International", year="2018", volume="117", number="1", pages="87--97", doi="10.1016/j.triboint.2017.08.019", issn="0301-679X", url="http://www.sciencedirect.com/science/article/pii/S0301679X17303973" }