Solvent-rich magnesium-based bulk metallic glasses in the Mg–Pd–Ca and Mg–Pd–Yb alloy systems. (November 2021)

• Record Type: Journal Article
• Authors: Jilani, Sidra; Koloadin, Leah S; Miskovic, David M; Laws, Kevin J
• Is Part Of: Scripta materialia. Number 204(2021)
• Publication Date: 2021-11
• Subjects: Bulk metallic glass -- Amorphous alloys, Magnesium alloys -- Quasicrystals -- Biomaterials; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2021.114120
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Magnesium-based metallic glasses are well-known for their low density, high specific strength and potential as resorbable biological implant materials. In this study a range of magnesium-rich (85-87 atomic percent) metallic glasses are developed from the Mg–Pd–Ca and Mg–Pd–Yb alloy systems. A solvent-rich amorphous alloy design method and properties of these amorphous alloys are reported. Mg87 Pd7 Ca6, Mg86.5 Pd7.5 Ca6, Mg86.43 Pd7.69 Ca5.88, Mg86.5 Pd7.5 Yb6 and Mg86.43 Pd7.69 Yb5.88 alloys exhibit critical casting thicknesses of 670-750 μm and could be cast as fully-glassy 1 mm diameter rods. Alloys exhibit hardness of 2.7-3.2 GPa, Young's modulus of 62-64 GPa and density of 2.15-2.35 g/cm 3 for Ca- and 2.81-2.96 g/cm 3 for Yb-containing glasses. Graphical abstract: Image, graphical abstract