AJAS Cover
Frequency: Continuous
ISSN: 1546-9239 (Print)
ISSN: 1554-3641 (Online)
Research Article Open Access

Glassy Amorphous Metal Injection Molded Induced Morphological Defects

Raffaella Aversa1, Daniela Parcesepe1, Relly Victoria V. Petrescu2, Florian Ion T. Petrescu2, Francesco Tamburrino1 and Antonio Apicella1
  • 1 Advanced Material Lab, Department of Architecture and Industrial Design, Second University of Naples, 81031 Aversa (CE), Italy
  • 2 ARoTMM-IFToMM, Bucharest Polytechnic University, Bucharest, (CE), Romania

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.

American Journal of Applied Sciences
Volume 13 No. 12, 2016, 1476-1482

DOI: https://doi.org/10.3844/ajassp.2016.1476.1482

Submitted On: 12 December 2016 Published On: 27 December 2016

How to Cite: Aversa, R., Parcesepe, D., Petrescu, R. V. V., Petrescu, F. I. T., Tamburrino, F. & Apicella, A. (2016). Glassy Amorphous Metal Injection Molded Induced Morphological Defects. American Journal of Applied Sciences, 13(12), 1476-1482. https://doi.org/10.3844/ajassp.2016.1476.1482

Open AccessCopyright: © 2016 Raffaella Aversa, Daniela Parcesepe, Relly Victoria V. Petrescu, 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.

  • 4,726 Views
  • 1,886 Downloads
  • 12 Citations

Download

Keywords

  • Bulk Glass Metals
  • Rheology
  • Chemorheological Model
  • Segregation
  • Cold Crystallization