An Interface-Enriched eXtended Finite Element-Level Set Simulation of Solutal Melting of Additive Powder Particles during Transient Liquid Phase Bonding
In: Metallurgical and Materials Transactions A, Jg. 44 (2012-10-17), S. 1139-1151
Online
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Zugriff:
A new numerical simulation model is developed by using an interface-enriched eXtended Finite Element-Level Set (XFE-LS) method to study the solute-induced melting of additive powder particles (APPs) during transient liquid phase (TLP) bonding. The robust model captures rapidly occurring concurrent interfacial events at multiple propagating liquid-solid interfaces to simulate the melting behavior. In contrast to the critical assumption in analytical models, numerical calculations show that solute-transport into the APPs during the equilibration of the liquid composition is a significant factor that affects the APPs melting behavior. Also, the study shows that the solute-transport dependence of extent of APPs melting is influenced by the kinetics of solid-state solute diffusion within the particles. The understanding generated by the numerical analysis has resulted in the use of interlayer powder mixture that contains base-alloy APPs to produce single crystal TLP joint that has matching crystallographic orientations with single crystal substrate material, at a substantially reduced processing time, which has been previously considered unfeasible.
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An Interface-Enriched eXtended Finite Element-Level Set Simulation of Solutal Melting of Additive Powder Particles during Transient Liquid Phase Bonding
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Autor/in / Beteiligte Person: | Ghoneim, A. ; Hunedy, J. ; Ojo, O. A. |
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Zeitschrift: | Metallurgical and Materials Transactions A, Jg. 44 (2012-10-17), S. 1139-1151 |
Veröffentlichung: | Springer Science and Business Media LLC, 2012 |
Medientyp: | unknown |
ISSN: | 1543-1940 (print) ; 1073-5623 (print) |
DOI: | 10.1007/s11661-012-1412-1 |
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