Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Perek-Nowak, Małgorzata" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-4 z 4
    Tytuł:
    Microstructure evolution in directionally solidifying Cu-17 at.% Al eutectic alloy
    Autorzy:
    Perek-Nowak, Małgorzata
    Boczkal, Grzegorz
    Pałka, Paweł
    Kuropatwa, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/2204533.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Cu-Al alloy
    direct solidification
    gradual material
    texture
    stop Cu-Al
    tekstura
    krzepnięcie bezpośrednie
    materiał stopniowy
    Opis:
    An attempt of direct solidification (DS) of Cu-17 at. %Al eutectic alloy is presented in the paper. The chosen alloy belongs to the copper-rich eutectic region in the Cu–Al phase diagram. The alloy was remelted and solidified in a vertical furnace of Bridgman type with a moving crystallization zone. Thus, the expected structure will result in an arranged distribution of two phases in the bulk of the material. However, due to cooling the mentioned alloy down to room temperature, the phase transformations occur according to the respective phase diagram, including β phase decomposition through eutectoid and peritectoid reactions. The crystallized material consisted of the following phases α solution and γ1 (Cu9Al4) phase. Structure observations, determination of the formed phases and texture analysis of the obtained material are described. Mechanical properties received from a tensile test are also included.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 2; art. no. e144604
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Particle Size of a Powder upon the Properties and Microstructure of Boron-modified Fe-Ni-Mo-Cu Sinters
    Autorzy:
    Karwan-Baczewska, Joanna
    Perek-Nowak, Małgorzata
    Majchrowska, Magdalena
    Rosso, Mario
    Powiązania:
    https://bibliotekanauki.pl/articles/2201983.pdf
    Data publikacji:
    2023
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    processing
    powder metallurgy
    Distaloy SA powder
    activated sintering
    particle fraction
    Opis:
    The article discusses the effect of different particle fractions of prealloyed iron powder on the microstructure, density and hardness of sintered material. Each particle fraction (apart from 160–200 µm, which is a trace fraction) was modified with boron, its contents being, respectively, 0.2 wt.%, 0.4 wt.% and 0.6 wt.%. Next, the powder mixtures were pressed under a pressure of 600 MPa, and the final compacts were subject to sintering at 1200°C for 60 min in a hydrogen atmosphere. It was observed that the higher values of density and hardness were found in samples made from finer fractions of powder. A higher homogeneity of the microstructure and the highest degree of compactness was obtained in sinters from powder of 40–56 µm particle size, with 0.4 wt.% boron. Due to the use of small particle fractions of prealloyed powder, a higher degree of compactness in sinters was obtained with lower boron content. Also indicated was which particle fraction of Fe-Ni-Mo-Cu powder should be applied to obtain density in sinters with boron addition equal to almost 100% of the relative density of the analyzed alloy. The presented studies have both scientific and technological aspects.
    Źródło:
    Journal of Casting & Materials Engineering; 2023, 7, 1; 1--8
    2543-9901
    Pojawia się w:
    Journal of Casting & Materials Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A newly discovered fragment of a Hunnic cauldron from site 59-60, Sanok, Poland
    Autorzy:
    Okońska-Bulas, Magdalena
    Bulas, Jan
    Mazurek, Mirosław
    Garbacz-Klempka, Aldona
    Perek-Nowak, Małgorzata
    Powiązania:
    https://bibliotekanauki.pl/articles/1385899.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Jagielloński. Wydawnictwo Uniwersytetu Jagiellońskiego
    Tematy:
    Hun period
    hunnic cauldron
    SEM-EDS
    Upper San Basin
    XRF
    Opis:
    The article presents a newly discovered fragment of the Hunnic cauldron, unearthed during investment research conducted at site 59-60 in Sanok, Sanok County, Podkarpackie Voivodeship. As a result of conducted excavations, an extensive settlement from the Late Roman Period and the Early Migration Period were discovered. The fragment of the cauldron in one of the most important discoveries from here. Up to date just over 20 specimens of cauldrons or their fragments are known from Central Europe. The presented one is just the second cauldron discovered in the area of Poland. The article contains the results of stylistic, typological and chemical analyzes confirming the interpretation of this find.
    Źródło:
    Acta Archaeologica Carpathica; 2020, 55; 235-254
    0001-5229
    2719-4841
    Pojawia się w:
    Acta Archaeologica Carpathica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reconstruction of the Late Bronze Age Foundry Process in Greater Poland: Analyzes and Simulations. Case Study of Hoard from Przybysław
    Autorzy:
    Garbacz-Klempka, Aldona
    Piękoś, Marcin
    Perek-Nowak, Małgorzata
    Kozana, Janusz
    Żak, Paweł
    Fijołek, Andrzej
    Silska, Patrycja
    Stróżyk, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2134106.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    archaeometallurgy
    copper alloys
    casting
    CALPHAD
    computer modeling
    Late Bronze Age
    Opis:
    One of the most interesting categories of artifacts for archaeometallurgical research includes deposits of bronze items, so-called “metallurgists hoards”. They contain, aside of final products, many fragments of raw material and, moreover, metallurgical tools. An important source for the studies on the history of metallurgical technology is hoard from Przybysław, Greater Poland district. Thus, the aim of the work is the identification and interpretation of bronze-working practices and strategies adopted by prehistoric communities of the Late Bronze Age and the Early Iron Age (ca. 600 BC). The examined objects are characterized in terms of their design, structure, and chemical composition. The methods chosen for the studies of artifacts include: metallographic macro- and microscopic observations using optical microscopy (OM) and scanning electron microscopy (SEM), the analysis of chemical composition with the methods of energy dispersive X-ray spectroscopy (EDS), and X-ray fluorescence (ED-XRF). The thermodynamic analysis of the alloys was performed on the basis of the CALPHAD method. The experimental melts allowed to verify the theoretical considerations and to determine the characteristic temperatures of changes. The old casting technology can be analyzed basing on computer modeling and computer simulation methods. Simulations in the MAGMASOFT® software are a good example to illustrate how to fill a mould cavity with a molten bronze for a hoop ornament. It is also an appropriate tool to determine temperature distribution in a mould. The simulations also show the possible disadvantages with this old technology.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 3; 1125--1136
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies