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    Wyświetlanie 1-8 z 8
    Tytuł:
    Production of Aluminum Glass Fiber Reinforced Foam Synthesized by Space-Holder Technique
    Autorzy:
    Ertürk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1187253.pdf
    Data publikacji:
    2016-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Rm
    81.05.Bx
    83.80.Ab
    81.20.Ev
    81.70.Bt
    Opis:
    Aluminum and its reinforced type with glass fiber composite foams were produced by powder sintering process using spherical carbamide particles as a space holder. The foams with 40-60 vol.% porosity fractions were successfully produced after water leaching and sintering methods. Compression test was performed on both of the foam samples for comparing the compressive properties and energy absorption behavior of them. The composite foam samples with glass fiber reinforcement showed higher compressive strength than the parent material foam.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 4; 592-595
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Novel Molding Method and Enhanced Cell Homogeneity in the Powder Metallurgical Route for Production of Closed Cell Al-Foam
    Autorzy:
    Erturk, A.
    Sahin, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033369.pdf
    Data publikacji:
    2017-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Rm
    82.33.Ln
    61.43.Gt
    61.05.cp
    68.37.Hk
    Opis:
    TiH₂ content, mixing, pressing, different mold filling rate as the factors which affect foaming process on the powder metallurgical route were investigated. TiH₂ was added in the amount of 0.5-1-1.5-2 wt% to adjust the proper amount. Differential scanning calorimetry tests were conducted on the TiH₂ powders in order to obtain optimum hydrogen releasing condition. Aluminum and TiH₂ powders were blended with the different speed-time combination. The mix was compacted at different pressures with the aim of explaining of the oxide layer deformation. An acceptance-rejection criterion was developed and used in pore analysis. Also, the using of a borosilicate glass molding technique are completely original and a new approach.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 1; 39-42
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Enhanced Mechanical Performance of Aluminum Glass Fiber Reinforced Foam Material by Cu Modification
    Autorzy:
    Ertürk, A.
    Aydin, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033530.pdf
    Data publikacji:
    2017-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Bx
    81.05.Rm
    81.20.Ev
    81.70.Bt
    Opis:
    Glass fiber-reinforced aluminum foam and its modified forms, using 1 and 3 wt.% of Cu, were produced by powder sintering process, using spherical carbamide particles as space holders. The foams with 40 and 60 vol.% porosity fractions were successfully produced after water leaching and sintering procedures. Compression test was performed on foam samples to compare both, the compressive properties and energy absorption behavior of them. The composite foam samples with Cu modification have shown a higher compressive strength than the parent material foam. The average plateau stress and energy absorption capacity of foams produced in this study, achieved via utilizing 3 wt.% Cu, were 7.06 MPa and 3.51 MJ/m³, respectively.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 3; 470-473
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Manufacturing of Al-Zr Thermal-resistant Alloys for Transmission Lines
    Autorzy:
    Erturk, A.
    Guven, E.
    Karabay, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401363.pdf
    Data publikacji:
    2015-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.05.Bx
    88.80.H
    83.50.Uv
    81.70.Jb
    81.40.Ef
    81.70.Bt
    Opis:
    The present transmission lines of populous cities will have to be changed with an ability to work at higher temperatures without any weight and cross section changes. Innovative thermal-resistant alloy conductors (T-ACSR) operate in the range of about 150-200°C instead of 75°C which is the standard ACSR type conductor service temperature. In this study, the manufacturing procedure of Al-Zr alloy wire, used as high-temperature conductor wires, have been introduced. The Al-Zr alloy has been cast in a permanent mold than being extruded to a diameter of 10 mm at 400°C. After that the extruded rods have been cold drawn to a diameter of 3.02 mm. Elongation and tensile strength values of the cold drawn wire have been achieved by tensile test at elevated temperatures. Also, microstructural analysis and dispersion hardening procedure have been investigated. The results show that tensile strength and thermal-resistant property are improved by the addition of Zr.
    Źródło:
    Acta Physica Polonica A; 2015, 127, 4; 1292-1294
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Vibration Noise Harshness of a Light Truck Driveshaft, Analysis and Improvement with Six Sigma Approach
    Autorzy:
    Ertürk, A.
    Karabay, S.
    Baynal, K.
    Korkut, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/1033531.pdf
    Data publikacji:
    2017-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    06.30.Gv
    34.50.Ez
    43.58.+z
    46.40.-f
    05.10.-a
    Opis:
    This paper deals with the application of six sigma methodology for optimization of a cardan shaft. The aim of this optimization is to reduce vibration of the drive shaft and consequently improve vibration noise harshness of the vehicle. The six sigma methodology has been applied to a light truck, which has received excessive vibration and noise complaints. The define-measure-analyze-improve-control approach has been followed to enhance the vibration noise harshness statistics. The result shows that all expected vibration noise harshness performance targets have been dramatically improved when compared to the initial values. As a conclusion, the case study on a light truck is a useful reference to improve vehicle performance for vibration noise harshness.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 3; 477-480
    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:
    A Simulation and Fabrication Works on Optimization of High Pressure Aluminum Die Casting Part
    Autorzy:
    Ertürk, S.
    Kumruoğlu, L.
    Özel, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1181961.pdf
    Data publikacji:
    2014-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.20.Hy
    81.05.Bx
    Opis:
    High-pressure die casting offers reduced costs due to its small tolerances and smooth surface finish. Casting parts produced are consumed by the automotive industry in millions. In this study, the use of computer aided engineering applications on design of high-pressure die-casting was studied. The influence of casting process steps in die design was studied and analyzed. The casting simulation software was used to improve design and solve problems. By using the simulation software in analyses of die design, the final design was reached in a few hours and thus the design process of pre-production was shortened and mold production was carried out with no revision on die material. Radiographic test was applied on the casting parts and the result shows good correlation between simulations of solidification result data. Also the results proved that the application of squeeze pressure in the intensification phase of high-pressure die casting process could be examined in the casting simulation.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 2; 449-451
    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 1-8 z 8

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