About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
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Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
ON DEMAND: Multiphase, Multispecies Simulation of High Entropy Alloys for Brazing Applications |
Author(s) |
Bogdan Nenchev, Chinnapat Panwisawas, Hongbiao Dong, Russell Goodall, Dan Luo, Nick Ludford |
On-Site Speaker (Planned) |
Bogdan Nenchev |
Abstract Scope |
High Entropy Alloys (HEAs) are alloys consisting of multiple principal elements where configurational entropy of mixing dominates the thermodynamics of solidification. HEAs can find applications as brazing fillers by tailoring the material properties using computational alloy design. To tackle the challenge of the vast compositional space, the complexity of alloy composition and the large contrast in thermo-physical properties achieved, a combination of materials and computational modelling is crucial. In this work, finite element and level-set techniques were employed to study the wetting, spreading, and thermal-fluid behaviour of multiple HEA alloys. Melting and solidification multiphase flow coupled with heat transfer and diffusion models was constructed to simulate the laser brazing process of Inconel 718 to BNI2, FeCoNiMnCu, and CoCrCuFeNi alloys. A combination of experimental studies and thermodynamic simulations was utilised to obtain the required thermo-physical properties. Computational modelling is shown to be of paramount importance in the understanding the brazing performance. |
Proceedings Inclusion? |
Undecided |