Dergi makalesi Açık Erişim
Kaba, M.; Altay, M.; Akyildiz, E.; Muhaffel, F.; Ozkurt, S.; Atar, E.; Baydogan, M.; Cimenoglu, H.
<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"> <dc:creator>Kaba, M.</dc:creator> <dc:creator>Altay, M.</dc:creator> <dc:creator>Akyildiz, E.</dc:creator> <dc:creator>Muhaffel, F.</dc:creator> <dc:creator>Ozkurt, S.</dc:creator> <dc:creator>Atar, E.</dc:creator> <dc:creator>Baydogan, M.</dc:creator> <dc:creator>Cimenoglu, H.</dc:creator> <dc:date>2022-01-01</dc:date> <dc: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.</dc:description> <dc:identifier>https://aperta.ulakbim.gov.trrecord/261081</dc:identifier> <dc:identifier>oai:aperta.ulakbim.gov.tr:261081</dc:identifier> <dc:rights>info:eu-repo/semantics/openAccess</dc:rights> <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights> <dc:source>WEAR 498</dc:source> <dc:title>Surface degradation of nitrided hot work tool steels under repeated impact-sliding contacts: Effect of compound layer</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> <dc:type>publication-article</dc:type> </oai_dc:dc>
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