Tetragonal Phase in the Mg-Ni-Sn Ternary System

BOUDARD, MICHEL; DOISNEAU, PATRICIA; AUDEBERT, FERNANDO

JOURNAL OF ALLOYS AND COMPOUNDS

Elsevier

Año: 2004 vol. 370 p. 169 - 176

0925-8388

Complementary metallographic and crystallographic characterisations of the Mg-rich corner of the Mg–Ni–Sn system are presented. In particular the Mg75Ni15Sn10 phase, previously reported by Arcondo et al. [Hyperfine Interact. 66 (1991) 359] has been identified as a tetragonal phase by transmission electron microscopy and X-ray diffraction studies. The influence of this new phase, called Y-phase, on the glass forming ability of alloys with nearby composition is discussed.