Technical Session 1:

Title:        Molecular Dynamics Study of The Melting Point of Cu and δ-Fe using Two-phase Method: Investigation on the Interatomic Potential Performance for Metal Brazing Process
Authors:   Munsji, Ghulam Asrofi Buntoro, Rizal Arifin
Abstract:  Two pieces of metal can be joined by infiltrating a filler metal into the joint. This method is called as brazing.The study of filler metal-adjoining metal interaction and the diffusion process of filler metal into the channel between adjoining metals are very important. The result is used to specify the optimum temperature and the optimumdistance between adjoining metals.The study can be performed in the atomic level using molecular dynamics simulations. In this simulation method, the choice of the potential affects the results.Therefore, we performed the investigation on the performance of embedded-atom method interatomic potential employed in our molecular dynamics simulation. We obtained that the lattice constants of Fe and Cu crystal from our calculation agree with the experimental value. It also found that the calculated melting point of Cu (Tm = 1330 K) and Fe (Tm = 1900 K) using two-phase method is in good agreement with experiment. These results indicate that the potential used in this simulation is suitable for the study of metal brazing process.

Keywords: Metal Brazing, Embedded Atom Method, Interatomic Potential, Melting Point, Two-Phase Method
Pages:       009-011

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