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Wyszukujesz frazę "Mg2Si" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Microstructural analysis of AM50/Mg2Si cast magnesium composites
    Autorzy:
    Malik, M. A.
    Majchrzak, K.
    Braszczyńska-Malik, K. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/380454.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    stop magnezu AM50
    Mg2Si
    krzemek magnezu
    kompozyt metalowy
    AM50 magnesium alloy
    magnesium silicide
    metal matrix composites
    Opis:
    AM50/Mg2Si composites containing 5.7 wt. % and 9.9 wt. %. of Mg2Si reinforcing phase were prepared successfully by casting method. The microstructure of the cast AM50/Mg2Si magnesium matrix composites was investigated by light microscopy and X-ray diffractometry (XRD). The microstructure of these composites was characterized by the presence of \alfa-phase (a solid solution of aluminium in magnesium), Mg17Al12 (\gamma-phase), Al8Mn5 and Mg2Si. It was demonstrated that the Mg2Si phase was formed mainly as primary dendrites and eutectic.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 4; 109-112
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructural characterization of cast magnesium matrix composites by Raman microscopy
    Autorzy:
    Malik, M. A.
    Braszczyńska-Malik, K. N.
    Majchrzak, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/380033.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    magnesium matrix composites
    SiC
    Mg2Si
    Raman spectroscopy
    kompozyt magnezowy
    spektroskopia Ramana
    Opis:
    Cast magnesium matrix composites reinforced with silicon carbide particles were investigated by using Raman microscopy. 3C, 4H and 6H polytypes of SiC particles were identified in the investigated composites. Additionally, Mg2Si compound was detected by Raman microscopy in the composites microstructure.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1; 95-98
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructure and Mechanical Behavior of Mg-0.5Si-xSn Alloys
    Autorzy:
    Fu, X.
    Yang, Y.
    Ma, Q. Y.
    Peng, X.
    Xu, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/379670.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    low silicon magnesium alloy
    eutectic Mg2Si
    microstructure behavior
    mechanical behavior
    stop magnezu
    stop Mg2Si
    zachowanie mechaniczne
    Opis:
    Mg-0.5Si-xSn (x=0.95, 2.9, 5.02wt.%) alloys were cast and extruded at 593K (320 ºC) with an extrusion ratio of 25. The microstructure and mechanical properties of as-cast and extruded test alloys were investigated by OM, SEM, XRD and tensile tests. The experimental results indicate that the microstructure of the Mg-0.5Si-xSn alloys consists of primary α-Mg dendrites and an interdendritic eutectic containing α-Mg, Mg2Si and Mg2Sn. There is no coarse primary Mg2Si phase in the test alloys due to low Si content. With the increase in the Sn content, the Mg2Si phase was refined. The shape of Mg2Si phase was changed from branch to short bar, and the size of them were reduced. The ultimate tensile strength and yield strength of Mg-0.52Si-2.9Sn alloy at the temperature of 473K (200 ºC) reach 133MPa and 112MPa respectively. Refined eutectic Mg2Si phase and dispersed Mg2Sn phase with good elevated temperature stability are beneficial to improve the elevated temperature performance of the alloys. However, with the excess addition of Sn, large block-like Mg2Sn appears around the grain boundary leading to lower mechanical properties.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 179-184
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructure Formation of Al-5 mass%Mg Alloy Melts by Interaction with Silica
    Autorzy:
    Kim, Sun-Ki
    Ha, Seong-Ho
    Kim, Bong-Hwan
    Yoon, Young-Ok
    Lim, Hyun-Kyu
    Kim, Shae K.
    Kim, Yong-Jig
    Powiązania:
    https://bibliotekanauki.pl/articles/2049152.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Al-Mg system
    silica
    reduction
    Mg2Si
    phase diagram
    Opis:
    Dissolution of Si in Al-5 mass%Mg alloy melt by the reduction of SiO2 and its effect on microstructure formation of the alloy after solidification were investigated. Al-5 mass%Mg alloy without silica powder had approximately 0.05 mass%Si as an impurity. No significant difference in Si content was observed after the reaction with silica for 10 min, while the Si content increased up to about 0.12 mass% after 30 min. From the microstructure analysis and calculation of Scheil-Gulliver cooling, it was considered that as-cast microstructures of Al-5 mass%Mg-1 mass% SiO2 alloys had the distribution of eutectic phase particles, which are comprised of β-Al3Mg2 and Mg2Si phases. Based on the phase diagrams, only limited amount of Mg can be selectively removed by silica depending on the ratio of Si and Mg. Addition of silica of more than approximately 1.5 mass% in Al-5 mass%Mg alloy led to the formation of spinel and removal of both mg and Al from the melt.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 4; 947-950
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using cored wires injection 2PE-9 method in the production of ferritic Si-Mo ductile iron castings
    Autorzy:
    Guzik, E.
    Wierzchowski, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/380316.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    drut proszkowy
    żeliwo sferoidalne
    zaprawa modyfikująca
    właściwości mechaniczne
    odzysk magnezu
    drum ladle
    cored wires injection 2PE-9 method
    Si-Mo ductile iron
    Fesi + Mg nodulariser mixture
    inoculant master alloy
    ferritic matrix
    mechanical properties
    magnesium recovery
    vertical ladle
    Opis:
    The results of studies on the use of modern two cored wires injection method for production of ferritic nodular cast iron (ductile iron) with use of unique implementation of drum ladle as a treatment / transport and casting ladle instead vertical treatment ladle was described. The injection of length of [...] 9mm wires, cored: in FeSi + Mg nodulariser mixture and inoculant master alloy is a treatment method which can be used to produce iron melted in coreless induction furnace. This paper describes the results and analysis of using this method for optimal production of ductile iron under specific industrial conditions. It means, that length of nodulariser wire plus treatment and pouring temperatures were optimized. In this case, was taken ductile iron with material designation: EN-GJS-SiMo40-6 Grade according EN 16124:2010 E. Microstructure of great number of trials was controlled on internally used sample which has been correlated with standard sample before. The paper presents typical ferritic metallic matrix and nodular graphite. Additionally, mechanical properties were checked in some experiments. Mean values of magnesium recovery and cost of this new method from optimized process parameters were calculated as well.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 4; 53-56
    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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