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On the iron oxides between railway wheels and rails using laboratory tests
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.). (System- O Komponentdesign)ORCID iD: 0000-0003-2489-0688
2015 (English)In: CM 2015 - 10th International Conference on Contact Mechanics of Wheel / Rail Systems, International Conference on Contact Mechanics of Wheel , 2015Conference paper (Refereed)Text
Abstract [en]

The contact between railway wheels and rails is influenced by various contaminants. Iron oxides present on both wheel and rail surfaces which constantly affects the wheel?rail adhesion and wear. The paper summarizes some laboratory work investigating the iron oxides between the wheel and rai contact which were previous performed in the authors’ group. A comparison of the contact conditions and application regarding the test rig (pin-on-disc and twin-disc) is also given. The influence of iron oxides on the coefficient of friction, adhesion coefficient and wear rate is presented and discussed. Results indicate iron oxides greatly influence the tribological behavior particularly under the wet condition. The author aims to highlight the importance of the iron oxides which may provide some hints to explain the difference between laboratory tests and field measurements. However, a quantitative study is needed based on controlled environmental conditions due to the complexity and fast transition of iron oxides.

Place, publisher, year, edition, pages
International Conference on Contact Mechanics of Wheel , 2015.
Keyword [en]
Adhesion, Friction, Iron oxidesm Wear, Wheel-rail contact
National Category
Tribology
Identifiers
URN: urn:nbn:se:kth:diva-187419ScopusID: 2-s2.0-84963548596OAI: oai:DiVA.org:kth-187419DiVA: diva2:930449
Conference
10th International Conference on Contact Mechanics of Wheel / Rail Systems, CM 2015 ;USA
Note

QC 20160524

Available from: 2016-05-24 Created: 2016-05-23 Last updated: 2016-05-24Bibliographically approved

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Olofsson, Ulf
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