Temat: stop Mg2Si - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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