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Wyszukujesz frazę "austenitic cast iron" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Effect of nickel equivalent on austenite transition ratio in Ni-Mn-Cu cast iron
    Autorzy:
    Janus, A.
    Kurzawa, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380495.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    austenitic cast iron
    nickel equivalent
    martensitic transformation
    WDS analysis
    żeliwo austenityczne
    przemiana martenzytyczna
    analiza WDS
    Opis:
    Determined was quantitative effect of nickel equivalent value on austenite decomposition degree during cooling-down castings of Ni-Mn- Cu cast iron. Chemical composition of the alloy was 1.8 to 5.0 % C, 1.3 to 3.0 % Si, 3.1 to 7.7 % Ni, 0.4 to 6.3 % Mn, 0.1 to 4.9 % Cu, 0.14 to 0.16 % P and 0.03 to 0.04 % S. Analysed were castings with representative wall thickness 10, 15 and 20 mm. Scope of the examination comprised chemical analysis (including WDS), microscopic observations (optical and scanning microscopy, image ana-lyser), as well as Brinell hardness and HV microhardness measurements of structural components.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 2; 53-58
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dilatometric Research of High-quality Nodular Cast Iron
    Autorzy:
    Medyński, D.
    Janus, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380654.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    alloy cast iron
    austenitic cast iron
    dilatometric research
    martensitic transformation
    nickel equivalent
    żeliwo stopowe
    żeliwo austenityczne
    badania dylatometryczne
    przemiana martenzytyczna
    ekwiwalent niklowy
    Opis:
    In the research, relationships between matrix structure and hardness of high-quality Ni-Mn-Cu cast iron containing nodular graphite and nickel equivalent value were determined. Nickel equivalent values were dependent on chemical composition and differences between them resulted mostly from nickel concentration in individual alloys. Chemical compositions of the alloys were selected to obtain, in raw condition, austenitic and austenitic-martensitic cast iron. Next, stability of matrix of raw castings was determined by dilatometric tests. The results made it possible to determine influence of nickel equivalent on martensite transformation start and finish temperatures.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 2; 163-168
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Chemical Composition on Structure and Corrosion Resistance of Ni-Mn-Cu Cast Iron
    Autorzy:
    Medyński, D.
    Janus, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/383110.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    corrosion
    martensitic transformation
    austenitic cast iron
    Ni-Mn-Cu cast iron
    nickel equivalent
    korozja
    przemiana martenzytyczna
    żeliwo austenityczne
    żeliwo Ni-Mn-Cu
    Opis:
    In the paper, a relationship between chemical composition of Ni-Mn-Cu cast iron and its structure, hardness and corrosion resistance is determined. The examinations showed a decrease of thermodynamic stability of austenite together with decreasing nickel equivalent value, in cast iron solidifying according to both the stable and the metastable systems. As a result of increasing degree of austenite transformation, the created martensite caused a significant hardness increase, accompanied by small decline of corrosion resistance. It was found at the same time that solidification way of the alloy and its matrix structure affect corrosion resistance to a much smaller extent than the nickel equivalent value, in particular concentration of elements with high electrochemical potential.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 59-62
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Austenite Transformation on Abrasive Wear and Corrosion Resistance of Spheroidal Ni-Mn-Cu Cast Iron
    Autorzy:
    Medyński, D.
    Janus, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/381837.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    abrasive wear
    corrosion resistance
    austenitic cast iron
    Ni-Mn-Cu cast iron
    martensitic transformation
    odporność na korozję
    żeliwo austenityczne
    żeliwo Ni-Mn-Cu
    przemiana martenzytyczna
    Opis:
    Within the presented work, the effect of austenite transformation on abrasive wear as well as on rate and nature of corrosive destruction of spheroidal Ni-Mn-Cu cast iron was determined. Cast iron contained: 3.1÷3.4 %C, 2.1÷2.3 %Si, 2.3÷3.3 %Mn, 2.3÷2.5 %Cu and 4.8÷9.3 %Ni. At a higher degree of austenite transformation in the alloys with nickel equivalent below 16.0%, abrasive wear resistance was significantly higher. Examinations of the corrosion resistance were carried out with the use of gravimetric and potentiodynamic method. It was shown that higher degree of austenite transformation results in significantly higher abrasive wear resistance and slightly higher corrosion rate, as determined by the gravimetric method. However, results of potentiodynamic examinations showed creation of a smaller number of deep pinholes, which is a favourable phenomenon from the viewpoint of corrosion resistance.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 63-66
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Nickel Equivalent on Structure and Corrosion Resistance of Nodular Cast Iron Ni-Mn-Cu
    Autorzy:
    Medyński, D.
    Janus, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/381447.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    austenitic nodular cast iron
    cast iron Ni-Mn-Cu
    nickel equivalent
    martensitic transformation
    corrosion
    żeliwo sferoidalne
    żeliwo Ni-Mn-Cu
    nikiel
    przemiany martenzytyczne
    korozja
    Opis:
    Within the research determined was the effect of nickel equivalent on structure, hardness and corrosion resistance of nodular cast iron Ni- Mn-Cu. The examinations revealed a drop of thermodynamic stability of austenite along with decreasing nickel content. Along with in-creasing degree of austenite transformation, the created martensite resulted in significant increase of hardness (and of abrasion resistance as well) of the examined of cast iron, accompanied by insignificant decrease of corrosion resistance.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1 spec.; 69-74
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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