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Wyszukujesz frazę "Belan, J." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Static and Dynamic Mechanical Properties of Nodular Cast Irons
Autorzy:
Vaško, A.
Belan, J.
Tillová, E.
Powiązania:
https://bibliotekanauki.pl/articles/354847.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nodular cast iron
microstructure
mechanical properties
fatigue
failure mode
Opis:
Effects of charge composition on microstructure, mechanical and fatigue properties of nodular cast irons have been studied. For experiments, five melts of nodular cast iron were used – three types of unalloyed nodular cast irons (with different ratio of steel and pig iron in a charge and different additives for regulation of the chemical composition) and two types of alloyed nodular cast irons (SiMo- and SiCu- nodular cast iron). The microstructure of the specimens was evaluated according to a norm and by automatic image analysis. The mechanical properties were investigated by the tensile test, impact bending test and Brinell hardness test. The fatigue tests were carried out at sinusoidal cyclic push-pull loading at ambient temperature. The best mechanical properties were reached in the nodular cast iron alloyed by Si and Cu, what is related to its microstructure.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 1; 185-190
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of the precipitation hardening process in recycled Al-Si-Cu cast alloys
Autorzy:
Kuchariková, L.
Tillová, E.
Matvija, M.
Belan, J.
Chalupová, M.
Powiązania:
https://bibliotekanauki.pl/articles/354012.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
precipitation hardening
recycled Al-Si-Cu cast alloys
Cu precipitate
mechanical properties
transmission electron microscopy
Opis:
The formation of extremely small uniformly dispersed particles of a second phase within the original phase matrix during heat treatment changed material properties. Therefore the characterization of precipitation had been investigated using high resolution transmission electron microscopy (TEM) and electron diffraction of thin foils for an AlSi9Cu3 cast alloy. For investigation the hardening effect onto mechanical properties of aluminium cast was used heat treatment, which consisted from solution treatment at 515°C / 4 hours (h), followed by quenching into water with temperature 50°C and artificial aging using different temperatures 170°C and 190°C with different holding time 2, 4, 8, 16, and 32 hours. The observations of microstructure and substructure reveals that precipitation hardening has caused great changes in size, morphology and distributions of structural components, the formation of precipitates of Cu phases, and the change of mechanical properties as well.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 1; 397-403
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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