On Wheel-rail Contact Surface Phenomena with Structural Changes and ˇWhite Etching LayerˇGeneration

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F12%3A00202874" target="_blank" >RIV/68407700:21220/12:00202874 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3846/16484142.2012.696214" target="_blank" >http://dx.doi.org/10.3846/16484142.2012.696214</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3846/16484142.2012.696214" target="_blank" >10.3846/16484142.2012.696214</a>

Result language
angličtina
Original language name
On Wheel-rail Contact Surface Phenomena with Structural Changes and ˇWhite Etching LayerˇGeneration
Original language description
The main aim of this work was a study of the microstructure transformations with the residual stress formation that is induced by rolling contact friction and (adhesive) wear in the rail - wheel system. Several small rail-surface samples, we term them asthe "chips", and a piece of wheel sample were chosen for an analyses of the surface changes on the rail/wheel surface. A multitude of different experiments were carried out in order to analyse the microstructure changes at the surface and the near-surface region of the material samples and, thus, to contribute to the understanding of the complex rail/wheel rolling contact phenomena - and its degradation mechanisms. The formation of nano-structured martensite and carbides on the rail and wheel surface causes the extremely high microhardness values and the strong corrosion resistance of the so called White Etching Layers (WEL).
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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