抄録
Mg–Sn alloys rapidly quenched from the liquid state were examined by X-ray diffraction. A metastable phase of the face-centred cubic structure was obtained in the composition range between 14 and 18 at% Sn, corresponding to 2.28 and 2.36 (s+p) electrons/atom, respectively. The lower limit of the range coincides approximately with Engel’s empirical limit for the stability of FCC phase.
An intermediate phase tentatively analysed to be of an orthorhombic structure was obtained in the alloys richer in tin than Mg2Sn.
