February 1, 2015 Thesis Open Access

Asmamaw Dagne

JSON Export

{
  "files": [
    {
      "links": {
        "self": "https://nadre.ethernet.edu.et/api/files/e3e31a69-475f-41d9-8d60-28aa04a0d3bf/f1043538448_Paper_pdf_p_3_70.pdf"
      }, 
      "checksum": "md5:1b271a371c925c5568f0711a8669a234", 
      "bucket": "e3e31a69-475f-41d9-8d60-28aa04a0d3bf", 
      "key": "f1043538448_Paper_pdf_p_3_70.pdf", 
      "type": "pdf", 
      "size": 914035
    }
  ], 
  "owners": [
    11
  ], 
  "doi": "10.20372/nadre:1323", 
  "stats": {}, 
  "links": {
    "doi": "https://doi.org/10.20372/nadre:1323", 
    "conceptdoi": "https://doi.org/10.20372/nadre:1322", 
    "bucket": "https://nadre.ethernet.edu.et/api/files/e3e31a69-475f-41d9-8d60-28aa04a0d3bf", 
    "conceptbadge": "https://nadre.ethernet.edu.et/badge/doi/10.20372/nadre%3A1322.svg", 
    "html": "https://nadre.ethernet.edu.et/record/1323", 
    "latest_html": "https://nadre.ethernet.edu.et/record/1323", 
    "badge": "https://nadre.ethernet.edu.et/badge/doi/10.20372/nadre%3A1323.svg", 
    "latest": "https://nadre.ethernet.edu.et/api/records/1323"
  }, 
  "conceptdoi": "10.20372/nadre:1322", 
  "created": "2024-09-09T13:43:32.523676+00:00", 
  "updated": "2024-09-09T13:43:34.731373+00:00", 
  "conceptrecid": "1322", 
  "revision": 3, 
  "id": 1323, 
  "metadata": {
    "access_right_category": "success", 
    "doi": "10.20372/nadre:1323", 
    "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": {
      "id": "cc-by"
    }, 
    "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", 
    "relations": {
      "version": [
        {
          "count": 1, 
          "index": 0, 
          "parent": {
            "pid_type": "recid", 
            "pid_value": "1322"
          }, 
          "is_last": true, 
          "last_child": {
            "pid_type": "recid", 
            "pid_value": "1323"
          }
        }
      ]
    }, 
    "communities": [
      {
        "id": "aau"
      }, 
      {
        "id": "zenodo"
      }
    ], 
    "publication_date": "2015-02-01", 
    "creators": [
      {
        "name": "Asmamaw Dagne"
      }
    ], 
    "access_right": "open", 
    "resource_type": {
      "subtype": "thesis", 
      "type": "publication", 
      "title": "Thesis"
    }, 
    "related_identifiers": [
      {
        "scheme": "doi", 
        "identifier": "10.20372/nadre:1322", 
        "relation": "isVersionOf"
      }
    ]
  }
}