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Wyszukujesz frazę "Kumruoğlu, L." wg kryterium: Autor

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Production of Mg-3Al Based Composites Reinforced with Ti6Al4V Particles
    Autorzy:
    Kumruoglu, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1195261.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    83.80.Ab
    81.05.Bx
    81.05.Ni
    81.70.-q
    Opis:
    Stir casting is one of the simple, flexible and the cost effective methods for fabricating of metal matrix composites reinforced with particles. In this study, 5%, 10%, 15 vol.% Ti6Al4V particles were added into the Mg-3Al melt during stirring. The tensile strength of Mg-3Al alloy was between 150-190 MPa and 5 vol.% Ti6Al4V/Mg-3Al alloy was equal. However, increasing the particle volume of Ti6Al4V powders to 10 vol.% and 15 vol.% decreased the ultimate tensile strength of composites to 140-170 MPa and 90-110 MPa, respectively. On the other hand, the hardness of reinforced composite was increased for each volume.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 432-434
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Electrolytic Plasma Surface Cleaning of Industrial Metallic Components
    Autorzy:
    Kumruoglu, L.
    Özel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1194881.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.65.Kn
    82.45.Qr
    82.45.Hk
    Opis:
    Electrolytic plasma is an emerging, environmentally friendly surface engineering technology that can be used for cleaning of metal surfaces and removing several coating. The present work was concerned with cleaning of corrosion products (oxides and contamination) on steel surfaces for corrosion protection. The effects of processing parameters on cleaning steel surfaces were investigated. The results show that electrolytic plasma can effectively produce clean surfaces and remove iron oxides. Also the arc spray coatings deposited on steel was removed by electrolytic plasma.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 379-381
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wear Performance of Hardened 1.2333 Cold Work Tool Steel by Plasma Electrolysis
    Autorzy:
    Özel, A.
    Kumruoglu, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1218174.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.40.Cd
    81.40.Ef
    52.50.-b
    52.77.-j
    Opis:
    Plasma electrolysis is an electrolytic-chemical-thermal technique that can be used for local hardening of the different type of steels. The feasibility of hardening the 1.2333 cold work tool steel by applying a single-stage-local surface treatment, which combines the methods of plasma electrolysis, is discussed. The effects of treatment durations of plasma electrolytic hardening on the surface microstructural, mechanical, and tribological characteristics of 1.2333 cold work steel substrates are studied. The major advantage of the plasma electrolytic hardening is shown to be hardened layer (maximum 900 Hv - minimum 500 Hv) of the substrates consisting of martensitic phase in very short treatment durations, approximately 7 mm thick/0.5 min. Reciprocating-sliding friction and wear tests against an alumina ball counter face have shown that the application of a plasma electrolysis promotes a change in wear mechanism of the friction pair from relatively severe adhesion-abrasion to mild deformation. This results in simultaneous reduction of the volumetric wear rate from 0.18-0.2 $mm^3$ to 0.04 $mm^3$.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 304-306
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Feederless Casting Limits by Thermal Analysis in Cast Iron
    Autorzy:
    Erturk, S.
    Kumruoglu, L.
    Ozel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1030308.pdf
    Data publikacji:
    2017-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Bx
    81.30.-t
    81.30.Fb
    81.70.Pg
    Opis:
    In this study the determinations of melt quality was carried out by thermal analysis of ductile iron. The aim of the study was to determine the limits of feederless casting after the determination of inoculation quality in cast iron. Production method of pouring into a sand mold in the entirety and without using feeder systems has been investigated. Forms of the solidification and volume change have been investigated with simulation program as functions of inoculation quality, type of resin in the mold and mold rigidity. Results of the analysis have been compared with the results of experimental iron casting.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 3; 370-373
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Fabricating of Steel/Cast Iron Composite by Casting Route
    Autorzy:
    Ertürk, S.
    Çakır, O.
    Kumruoglu, L.
    Ozel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1182854.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    47.11.-j
    81.20.Hy
    81.30.Fb
    81.05.Ni
    68.08.-p
    Opis:
    In this study, 1.2333 cold work tool steel and cast iron (GG 25) were simultaneously melted in different furnaces to fabricate composite die mold used in sheet metal forming industry. To enhance the metallurgical bond between two components of composite part, the pouring temperature of cast iron was assessed just above the solidus temperature, then metallurgically prepared cast iron was poured on to the cast tool steel. The temperature and casting parameters were monitored and simulated. Experimental and simulation results were compared, finally the optimum parameters and casting route were revealed.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 452-453
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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