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Ternary Compounds and Glass Formation in the Cu‐Mg‐Y System
Author(s) -
Satta M.,
Palumbo M.,
Rizzi P.,
Baricco M.
Publication year - 2007
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700040
Subject(s) - materials science , supercooling , differential scanning calorimetry , ternary operation , eutectic system , nucleation , crystallography , scanning electron microscope , ternary numeral system , crystallization , eutectic bonding , thermodynamics , microstructure , metallurgy , composite material , chemistry , computer science , programming language , physics
Glass‐formation is based on competition between undercooling of the liquid and nucleation of crystal phases, so it is usually obtained around eutectic points. The aim of this work is to analyse the eutectic position and the possible presence of ternary phases in the Cu‐Mg‐Y ternary system, which has been proved to form bulk metallic glasses. The equilibrium crystal phases of the Mg 27 Cu 38 Y 35 and Mg 65 Cu 25 Y 10 alloys have been identified, combining experimental data obtained by X‐ray diffraction, scanning electron microscopy and differential scanning calorimetry. New ternary MgCuY, Mg 3 CuY and Mg 4 CuY phases are suggested. New ternary phases with composition Mg3CuY (τ4) and Mg4CuY (τ5) are suggested.