Effect of Lanthanum Addition on the Microstructure of Mg-4Al Alloy
| Autor: | Ahmed A. Moosa |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Al-Khawarizmi Engineering Journal, Vol 7, Iss 2 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1818-1171 2312-0789 |
| Popis: | This research was to determine the effect of rare earth metal (REM) on the as-cast microstructure of Mg-4Al alloy. The rare earth metal used here is Lanthanum to produce Mg-4Al-1.5La alloy. The microstructure was characterized by optical microscopy. The phases of this alloy were identified by X-ray diffraction. The microstructure of Mg-4Al consists of α-Mg and grain boundaries with precipitated phase particles. With the addition of Lanthanum, three distinct phases were identified in the X-ray diffraction patterns of the as cast Mg-4Al-1.5La: Mg, Al11La3, Al4La. The Mg17Al12 phase was not detected. The addition of Lanthanium increases the hardness and decrease the wear rate of Mg-4Al. |
| Databáze: | Directory of Open Access Journals |
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