SYNTHESIS AND CHARACTERIZATION OF Mg and Ti ALLOYS PREPARED BY MECHANICAL ALLOYING
DOI:
https://doi.org/10.17533/RCM/udea.rcm.n19a01Keywords:
Mg-Ti Alloys, Mechanical Alloying, SEM, DSCAbstract
Mg alloys containing 20% and 40% mass of Ti (Mg20Ti) (Mg40Ti), have been synthesized by mechanical alloying and characterized by X-ray diffraction (XRD) and scam electron microscopy (SEM with EDS). The XRD studies suggest the incorporation of Ti in the Mg phase, and after 40 hours of grinding, the appearance of two reflections identified as Mg-Ti oxides can be seen. Oxygen is incorporated into the synthesis process due to the continuous fractures and welds that occur during milling, and which also makes it possible to form a solid solution of Ti, TiMg. As the milling time increases, the size of crystallites (D and DS) shows a decrease to values close to 10 nm, this behavior being corroborated by microscopy, where the decrease in particle size reaches approximately 20 nm. The morphology of the alloy varies, until it is observed in a globular shape or conglomerates of particles. The EDS analysis confirmed in addition to Ti and Mg the presence of other elements were confirmed by EDS.
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