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    Correction to: Wear Resistance of Aluminum Alloy A356 After Thorough Anodic Oxidation (Metal Science and Heat Treatment, (2023), 65, 5-6, (379-385), 10.1007/s11041-023-00941-y)
    (Springer, 2024) Başyiğit, A.B.; Azakli, Z.; Gümrük, R.; Bican, O.
    On the title page, author Dr. Aziz Bariş Başyipit should be spelled as Aziz Bariş BAŞYIĞIT. The original article has been corrected. © Springer Science+Business Media, LLC, part of Springer Nature 2023.
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    The Effect of Solid Boriding Time on the Structure, Hardness and Corrosion Properties of AISI 5140 Steel
    (MAIK NAUKA/INTERPERIODICA/SPRINGER, 2020) Bayca, S. U.; Bican, O.; Yamanel, B.; Hekimoglu, A. P.; Calis, M.
    In this study, AISI 5140 steel samples were borided in an electrical furnace at a temperature of 950 degrees C for 4, 6 and 8 h. Structural examinations, hardness measurement and corrosion tests were performed to determine the effect of the boriding time on the microstructure, hardness and corrosion resistance of the steel surface. It was observed that 4 h of boriding treatment resulted in the forming of Fe2B layer on the surface of the AISI 5140 steel. However, when the boriding time exceeded 4 h, FeB phase formed on the surface layer of the steel in addition to the Fe2B phase. It was also observed that both the thickness and hardness of the boride layer increased with the increasing boriding time. The hardness values of the borided sample surface were approximately seven times greater than unborided AISI 5140 steel. The samples subjected to boriding for 4 h showed higher corrosion resistance than the unboriding steel samples. But boriding time of more than 4 h caused a decrease in the corrosion resistance of the AISI 5140 steel.
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    Influence of T5 heat treatment on the microstructure and lubricated wear behavior of ternary ZnAl40Cu2 and quaternary ZnAl40Cu2Si2.5 alloysEinfluss der T5 Warmebehandlung auf das Gefuge und das geschmierte Verschleissverhalten von der ternaren ZnAl40Cu2-und der quaternaren ZnAl40Cu2Si2,5-Legierung
    (WILEY-V C H VERLAG GMBH, 2020) Bican, O.; Savaskan, T.
    A ternary ZnAl40Cu2 and a quaternary ZnAl40Cu2Si2.5 alloys were produced by permanent mold casting and subjected to T5 heat treatment at a temperature of 150 degrees C for 24 hours. The structural, mechanical and lubricated wear properties of these alloys were investigated in the as-cast and heat-treated conditions and the results were compared with those of SAE 65 (CuSn12) plain bearing bronze. Microstructure of the ternary alloy consisted of aluminum-rich alpha, eutectoid conversion product of alpha+eta and epsilon phase located in the interdendritic channels. In addition to these phases, silicon particles were observed in the microstructure of the quaternary alloy. T5 heat treatment caused a considerable amount of reduction in the hardness, tensile strength and wear resistance of ZnAl40-based ternary and quaternary alloys, but improved their ductility and stability. These alloys in the as-cast and heat-treated conditions exhibited lower wear volume or higher wear resistance than SAE 65 bearing bronze. Among the experimental alloys, the optimum mechanical properties and wear performance were obtained from ZnAl40Cu2Si2.5 alloy in both as-cast and heat-treated conditions. Adhesion appeared to be the main wear mechanism for the ZnAl40-based alloys, but abrasion dominated the wear of SAE 65 bronze.
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    Microstructural, mechanical and dry sliding wear properties of the MgO reinforced aluminium matrix composites produced by vacuum infiltration
    (Redakcia Kovove Materialy, 2014) Bican, O.
    Dry sliding wear properties of MgO (10-40 vol.%) reinforced aluminium matrix composites produced by vacuum infiltration method were investigated using a pin-on-disc test machine after examining their microstructural and mechanical properties. The hardness of the composites increased continuously with increasing MgO content and the highest hardness (71 HB) was obtained for Al-40vol.%MgO. The highest tensile strength (139 MPa) and the lowest porosity (1.3 %) were obtained for Al-20vol.%MgO composite. It was observed that the wear volume of the composites increased with increasing load and sliding speed. Wear resistance of the composites tested was observed to be strongly dependent on their tensile strength and porosity rather than their hardness. Although adhesion and abrasion took place during the wear of tested composites, smearing appeared to be the most effective wear mechanism for the composites contaning up to 20 vol.% MgO, while abrasive wear dominated for the Al-30vol.%MgO and Al-40vol.% MgO composites.