Consolidation of Blended Titanium/Magnesium Powders by Microwave Processing
Mg-Ti alloys are attractive for structural applications because of low density and improved corrosion resistance by selective oxidation including hydrogen storage and switchable mirror applications. Titanium has a melting point (1670°C) that greatly exceeds the boiling point of magnesium (1090°C) and therefore, alloying of Mg and Ti by conventional methods is extremely difficult. Secondly, the solubility of Ti in liquid Mg is very low and it is difficult to extend solubility by rapid solidification. Physical vapor deposition by electron beam deposition and magnetron co-sputtering has been used to extend the solubility of Ti in Mg. Mechanical alloying and anvil-cell processing at extreme temperatures and pressures have also used to enforce alloying of Mg with Ti. The present paper deals with the consolidation of blended magnesium-titanium powders by microwave heating, an approach that appears highly cost effective.
M. Ashraf Imam, F. H. (Sam) Froes and Ramana G. Reddy
M. A. Imam et al., "Consolidation of Blended Titanium/Magnesium Powders by Microwave Processing", Key Engineering Materials, Vol. 551, pp. 73-85, 2013