The Production and Elevated Temperature Properties of Ca65Mg15Zn20 Bulk Metallic Glass
Ca65Mg15Zn20 bulk metallic glass samples of dimensions 3.15 × 7 × 125 mm were prepared using an inverted low-pressure die-casting technique. It was found that charge temperature, and injection pressure were important parameters for controlling the length, porosity and degree of crystallinity in the as-cast samples. A processing map was generated illustrating the optimum casting temperature and pressure range for generating the highest quality castings. These samples were ground into tensile samples in compliance with ASTM E8-04 and deformed in the supercooled liquid (SCL) region (105 to 135 °C) at constant strain rates from 10-3 to 10-4 s-1. Reported are the effects of these parameters on the deformation behaviour of the Ca65Mg15Zn20 BMG.
Young Won Chang, Nack J. Kim and Chong Soo Lee
K. J. Laws et al., "The Production and Elevated Temperature Properties of Ca65Mg15Zn20 Bulk Metallic Glass", Materials Science Forum, Vols. 561-565, pp. 1263-1266, 2007