On the Ferromagnetic Phase in Manganese-Aluminum System

Abstract

A metallographical investigation of manganess-aluminum system was made in the compositional range of 47% to 60% of manganese, with the results of a new hexagonal close-packed phase and a metastable tetragonal ferromagnetic phase derived therefrom. The conditions necessary for formation, structure, stability and thermal and magnetic properties of the latter phase have been studied. A discussion was also given on its magnetic properties.