1 Ocak 2022 Dergi makalesi Açık Erişim

Kaba, M.; Altay, M.; Akyildiz, E.; Muhaffel, F.; Ozkurt, S.; Atar, E.; Baydogan, M.; Cimenoglu, H.

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  "doi": "10.1016/j.wear.2022.204300", 
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    "creators": [
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Kaba, M."
      }, 
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Altay, M."
      }, 
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Akyildiz, E."
      }, 
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Muhaffel, F."
      }, 
      {
        "affiliation": "Supsan Motor Supaplari San T A S, Istanbul, Turkey", 
        "name": "Ozkurt, S."
      }, 
      {
        "affiliation": "Gebze Tech Univ, Dept Mat Sci & Engn, Kocaeli, Turkey", 
        "name": "Atar, E."
      }, 
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Baydogan, M."
      }, 
      {
        "affiliation": "Istanbul Tech Univ, Dept Met & Mat Engn, Istanbul, Turkey", 
        "name": "Cimenoglu, H."
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    "description": "Wear behaviour of quenched and tempered (QT) hot work tool steels (Uddeholm QRO90) was investigated against SAE 52100 grade bearing steel balls after gas nitriding using a dedicated laboratory scale impact-sliding wear test rig. Gas nitriding was employed in a fluidised bed reactor under two alternative regimes: i. High Temperature Nitriding (HTN) carried out at 510 degrees C and ii. Low Temperature Nitriding (LTN) carried out at <= 400 degrees C. The HTN process resulted in the formation of -2 mu m thick external compound layer, whereas the LTN processed steels were free of any surface compound layer formation. After the impact-sliding wear tests employed at room temperature (RT), the prevailing wear mechanisms of the examined steels were assessed as tribo-oxidation and fatigue wear. The testing at 600 ?C induced different wear mechanisms for the HTN and the LTN steels. While tribo-oxidation and fatigue wear were preserved for the HTN steel, plastic deformation dominated the wear that progressed on the compound layer free surface of the LTN steel. Impact-sliding wear testing at 600 degrees C showed that the wear rate of LTN > HTN steels, as opposed to the wear rate at RT where wear rate of HTN > LTN.", 
    "doi": "10.1016/j.wear.2022.204300", 
    "has_grant": false, 
    "journal": {
      "title": "WEAR", 
      "volume": "498"
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    "license": {
      "id": "cc-by"
    }, 
    "publication_date": "2022-01-01", 
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      "title": "Dergi makalesi", 
      "type": "publication"
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    "science_branches": [
      "Di\u011fer"
    ], 
    "title": "Surface degradation of nitrided hot work tool steels under repeated impact-sliding contacts: Effect of compound layer"
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