American Journal of Applied Sciences

Glassy Amorphous Metal Injection Molded Induced Morphological Defects

Raffaella Aversa, Daniela Parcesepe, Relly Victoria V. Petrescu, Guanying Chen, Florian Ion T. Petrescu, Francesco Tamburrino and Antonio Apicella

DOI : 10.3844/ajassp.2016.1476.1482

American Journal of Applied Sciences

Volume 13, Issue 12

Pages 1476-1482

Abstract

Melt rheology in injection molded metastable supercooled liquid metal of Zr44-Ti11-Cu10-Ni10-Be25 alloy may induce selective crystallizations. High mobility Be, Cu and Ni atoms have been observed to differently crystallize in bulk metal glassy supercooled liquids. Here, we analyze the result of morphological microscopic observation conduct on Bulk Metallic Glass (BMG) with composition of a commercial liquid metal alloy (LM001B). The injection molded plate has been supplied by “Liquid Metals Technologies Inc, Ca USA” and manufactured using an Engel injection molding machine operating at 1050-1100°C; the observed sample then has been cut by water jet. FEI Scios Dual-Beam has carried out the microscopic observation. Particularly, through a cross section, we observe the presence of crystalline phases on the short-range order. We investigate the presence of short-range order clusters, their distribution and the effect that they could cause on the alloys’ behaviors and properties.

Copyright

© 2016 Raffaella Aversa, Daniela Parcesepe, Relly Victoria V. Petrescu, Guanying Chen, Florian Ion T. Petrescu, Francesco Tamburrino and Antonio Apicella. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.