Simulation of Solidification Parameters during Zr Based Bulk Metallic Glass Matrix Composite's (BMGMCs) Additive Manufacturing

Rafique, M 2018, 'Simulation of Solidification Parameters during Zr Based Bulk Metallic Glass Matrix Composite's (BMGMCs) Additive Manufacturing', Engineering, vol. 10, no. 3, pp. 1-24.


Document type: Journal Article
Collection: Journal Articles

Title Simulation of Solidification Parameters during Zr Based Bulk Metallic Glass Matrix Composite's (BMGMCs) Additive Manufacturing
Author(s) Rafique, M
Year 2018
Journal name Engineering
Volume number 10
Issue number 3
Start page 1
End page 24
Total pages 24
Publisher Scientific Research Publishing
Abstract After a silence of three decades, bulk metallic glasses and their composites have re-emerged as a competent engineering material owing to their excellent mechanical properties not observed in any other engineering material known till date. However, they exhibit poor ductility and little or no toughness which make them brittle and they fail catastrophically under tensile loading. Exact explanation of this behaviour is difficult, and a lot of expensive experimentation is needed before conclusive results could be drawn. In present study, a theoretical approach has been presented aimed at solving this problem. A detailed mathematical model has been developed to describe solidification phenomena in zirconium based bulk metallic glass matrix composites during additive manufacturing. It precisely models and predicts solidification parameters related to microscale solute diffusion (mass transfer) and capillary action in these rapidly solidifying sluggish slurries. Programming and simulation of model is performed in MATLAB®. Results show that the use of temperature dependent thermophysical properties yields a synergic effect for multitude improvement and refinement simulation results. Simulated values proved out to be in good agreement with prior simulated and experimental results.
Subject Aerospace Materials
Metals and Alloy Materials
Keyword(s) Simulation
Metallic Glass
Solidification
Toughness
DOI - identifier 10.4236/eng.2018.103007
Copyright notice © 2018 by author and Scientific Research Publishing Inc.
ISSN 1947-3931
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