Synthesis of Copper-Based Bulk Metallic Glasses in the Ternary CuâMgâCa System.
2010
Abstract This paper reports the discovery of novel copper-based bulk metallic glasses free of group IV transition metals (Zr, Hf and Ti) in the Ca–Cu–Mg ternary system. Alloys of compositions ranging from Cu-33–55 at.%, Mg-18–36 at.% and Ca-18–36 at.%, located far from eutectic reactions, were found to exhibit high glass-forming ability (up to 8 mm using conventional copper mold casting), high hardness (up to 328 H V ) and low densities (2.9–4.0 g/cm 3 ).
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