Abstract
Mg-x mass%Fe (x=0, 5, 10, 20) alloys were synthesized by mechanically alloying of elementary Mg and Fe powder for 180ks milling under 66kPa argon gas atmosphere using by a planetary ball milling. The obtained MA powders were composite materials of Mg and Fe, the reaction between Mg and Fe did not occurred during the MA process. After the MA process, Mg-Fe powders not containing more than 10mass%Fe became disc shape and Mg-20mass%Fe powder became grain of 2mm. In the case of Mg-15mass%Fe, the obtained MA powder became big blocks by the joining of the MA powders during the MA process. The Mg-15mass%Fe MA powder was able to consolidate by pulsed current sintering at 773K under a pressure of 19MPa. It was observed that the fine and homogenius Fe particles dispersed in the sintered body. In the MA process of Mg-15mass%Fe, the bulky compact was obtained by the controlling of a milling condition.
