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Wyszukujesz frazę "IN713C superalloy" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    The Impact of the Thickness of the Ceramic Shell Mould on the (γ + γ) Eutectic in the IN713C Superalloy Airfoil Blade Casting
    Autorzy:
    Szczotok, A.
    Nawrocki, J.
    Pietraszek, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/356978.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    investment casting
    IN713C superalloy
    (y+y') eutectic
    computing methods
    statistical analysis
    repeatability
    Opis:
    In the study the wall thickness of ceramic shell mould influence on (γ + γ') eutectic in the IN713C nickel-based superalloy airfoil blade casting was described. Two castings formed as a blade from two wax pattern assemblies were analysed. In the experiment in one pattern the thick ceramic layer was obtained on pressure side and in another one on suction side of the airfoil blade. The microstructure of the crosssections of the castings were observed on polished and etched metallographic specimens. The microstructure and phases chemical compositions of specimens was analyzed by using the scanning electron microscope Hitachi S-4200 equipped with EDS. It was established, that wall thickness of ceramic shell mould affect size, shape and volume fraction of (γ + γ') eutectic islands in airfoil blade made from IN713C superalloy. The analysis was provided in accordance to the typical statistical methodology [1].
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2A; 587-593
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Carbides in Turbine Blade Made of IN713C Superalloy After Hot Isostatic Pressing
    Autorzy:
    Kościelniak, B.
    Roskosz, S.
    Cwajna, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/351248.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    IN713C superalloy
    hot isostatic pressing
    turbine blades
    qualitative and quantitative analysis of carbides
    Opis:
    The IN713C is nickel-based superalloy, used to produce low pressure turbine blades in a process of investment casting. However, porosity which is formed during the casting, decreases mechanical properties of IN713C. Therefore, to eliminate porosity, a process of hot isostatic pressing was applied. Nonetheless, HIP also least to some changes in the microstructure of tested material. The main aim of this paper is to characterize the morphology of carbides before and after hot isostatic pressing. Microstructural characterization was carried out with the use of a scanning electron microscope equipped with an energy dispersive X-ray spectrometer and an electron backscatter diffraction detector. The size and shape of carbides were evaluated by quantitative metallography methods methods. The results show that the amount, size and heterogeneity of arrangement of the carbides increased after application of HIP treatment.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 247-252
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The fixed-effects analysis of the relation between SDAS and carbides for the airfoil blade traces
    Autorzy:
    Pietraszek, J.
    Szczotok, A.
    Radek, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/351316.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    microstructure
    SDAS
    IN713C
    superalloy
    Opis:
    The primary objective was to test a usefulness of the specific fixed-effect model for the analysis of quantitative relationships gathered from the image analysis of the material microstructures. The dataset was obtained from the investigation of turbine blades made from superalloy IN713C. The analysis based on the general linear model resulted in informative plots revealing mutual relationships between secondary dendrite arm spacing and the mean plane section area of carbides in the material. Directions for further research also were obtained.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 235-239
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Metallographic Study and Repeatability Analysis of γ Phase Precipitates in Cored, Thin-Walled Castings Made from IN713C Superallo
    Autorzy:
    Szczotok, A.
    Pietraszek, J.
    Radek, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/354156.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    IN713C
    superalloy
    γ' phase
    metallography
    statistical analysis
    Opis:
    The study describes the influence of a surface modification in cored, thin-walled castings of blades from IN-713C nickel superalloy on γ' phase precipitates. The blades were produced by using the investment casting process in the laboratory conditions as parts for a low-pressure turbine rotor. The microstructural observations of the γ' phase precipitates on the cross sections of the blades were performed. The observations were followed by quantitative metallography evaluation, and finally, a comparison of the precipitates between one blade with the conventionally applied ceramic core and one with the core covered layer contained a surface modifier (5% of CoAl2O4) was made.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2A; 595-601
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Macrostructure of Nickelbased Superalloys IN713C and MAR 247 on the Characteristics of High-temperature Creep
    Autorzy:
    Cieśla, M.
    Binczyk, F.
    Mańka, M.
    Findziński, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/380019.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nickel alloy IN-713C
    superalloy Mar-247
    macrostructure
    modification
    creep
    stop niklu IN-713C
    nadstop Mar-247
    modyfikacja
    Opis:
    The study consisted in assessing the influence of surface and volume modification on the characteristics of high-temperature creep of castings made of waste products of nickel-based superalloys IN 713C and the MAR-247. The results of high-temperature creep tests performed under conditions of two variants of research were analysed. The characteristics of creep according to variant I were obtained on the basis of earlier studies of these alloys with the parameters T=982oC, σ=150MPa [1]. Variant II included carrying out creep tests of alloy IN713C with the parameters T=760oC, σ =400MPa and alloy MAR247 with the parameters: T=982oC, σ=200MPa.Developed creep characteristics were compared with the results of these alloys with the parameters according to variant I of the study. It was observed that the conditions of experiments carried out depending upon the value of the creep test temperature and stress with the creep stability depends on the size of the macrograin (I variant of the studies) or such influence was not observed (II variant of the studies). Stability of samples with coarse structure in variant I of creep tests was significantly higher than the samples with fragmented grain. It was found that the observed stability conditions are dependent on the dominant deformation mechanisms under creep tests carried out - diffusion mechanism in variant I and a dislocation mechanism in variant II of the study. The conditions for the formation and growth of the cracks in the tested materials, including the morphological characteristics of their macro-and microstructure were tested.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 4; 11-16
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluation of Casting Shrinkage and Liquid Metal Fluidity of IN-713C Alloy
    Autorzy:
    Binczyk, F.
    Cieśla, M.
    Gradoń, P.
    Findziński, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380184.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    fluidity
    castability
    spiral test
    pouring temperature
    IN713C
    superalloy
    silumin
    płynność
    lejność
    temperatura odlewania
    nadstop
    Opis:
    This paper presents the results of measurements of liquid metal fluidity and linear shrinkage of nickel alloy IN-713C in vacuum induction melting furnace Balzers VSG-2. Because of limited volume of the furnace chamber special models for technological trials were fluidity of hypoeutectic silumin, however in case of nickel superalloy the mould cavity was completely filled in each test because of high required pouring temperature. Positive results were obtained from the modified spiral test for all alloys used in the research. Relationship between the linear shrinkage for the test rod and a specific indicator of contraction defined on a spiral was observed.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1; 9-12
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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