February 1, 2015 Thesis Open Access

Asmamaw Dagne

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  <identifier identifierType="DOI">10.20372/nadre:1323</identifier>
  <creators>
    <creator>
      <creatorName>Asmamaw Dagne</creatorName>
    </creator>
  </creators>
  <titles>
    <title>A Thesis Submitted to the School of Mechanical and Industrial Engineering in Partial Fulfillment of the Requirements for the Degree of Masters of Science in Railway Engineering</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2015</publicationYear>
  <dates>
    <date dateType="Issued">2015-02-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Thesis</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://nadre.ethernet.edu.et/record/1323</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.20372/nadre:1322</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/aau</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://nadre.ethernet.edu.et/communities/zenodo</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
  </rightsList>
  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;Wheel and rail is one of the most important material used to support and guide rail vehicle safely&lt;br&gt;
and smoothly. Since wheel and rail suffers from various interacting mechanical and thermal&lt;br&gt;
forces, friction modifiers, various contaminants and environmental atmosphere, wear poses large&lt;br&gt;
problem on wheel and rail.&lt;br&gt;
Wheel and rail wear can be result in an extensive cost for truck owner, if it is not predicated and&lt;br&gt;
prevented in an efficient way. To limit these costs, one measure is to predicate and prevent wheel&lt;br&gt;
and rail wear through wear modeling.&lt;br&gt;
The purpose of this research is to investigate the influence of heat treating both wheel and rail at&lt;br&gt;
the same time on rolling/sliding wear of wheel and rail.&lt;br&gt;
The rolling/sliding wear of three pair of rollers used to model wheel and rail material is studied&lt;br&gt;
using twin disc rolling/sliding wear testing machine. The three pair of rollers used in this study is&lt;br&gt;
manufactured from carbon steel having similar hardness and chemical composition as that of&lt;br&gt;
standard wheel and rail. Then the two pair of rollers is heat treated in an electric furnace to&lt;br&gt;
improve their hardness. Heat treatment was done by heating the rollers to austenite temperature,&lt;br&gt;
holding at that temperature for 45minutes for uniform temperature distribution. Water or air plus&lt;br&gt;
oil are used as cooling median.&lt;/p&gt;</description>
  </descriptions>
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