February 1, 2015 Thesis Open Access

Asmamaw Dagne

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{
  "description": "<p>Wheel and rail is one of the most important material used to support and guide rail vehicle safely<br>\nand smoothly. Since wheel and rail suffers from various interacting mechanical and thermal<br>\nforces, friction modifiers, various contaminants and environmental atmosphere, wear poses large<br>\nproblem on wheel and rail.<br>\nWheel and rail wear can be result in an extensive cost for truck owner, if it is not predicated and<br>\nprevented in an efficient way. To limit these costs, one measure is to predicate and prevent wheel<br>\nand rail wear through wear modeling.<br>\nThe purpose of this research is to investigate the influence of heat treating both wheel and rail at<br>\nthe same time on rolling/sliding wear of wheel and rail.<br>\nThe rolling/sliding wear of three pair of rollers used to model wheel and rail material is studied<br>\nusing twin disc rolling/sliding wear testing machine. The three pair of rollers used in this study is<br>\nmanufactured from carbon steel having similar hardness and chemical composition as that of<br>\nstandard wheel and rail. Then the two pair of rollers is heat treated in an electric furnace to<br>\nimprove their hardness. Heat treatment was done by heating the rollers to austenite temperature,<br>\nholding at that temperature for 45minutes for uniform temperature distribution. Water or air plus<br>\noil are used as cooling median.</p>", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Asmamaw Dagne"
    }
  ], 
  "headline": "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", 
  "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", 
  "datePublished": "2015-02-01", 
  "url": "https://nadre.ethernet.edu.et/record/1323", 
  "@context": "https://schema.org/", 
  "identifier": "https://doi.org/10.20372/nadre:1323", 
  "@id": "https://doi.org/10.20372/nadre:1323", 
  "@type": "ScholarlyArticle", 
  "name": "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"
}