Naslov
Simulation of dendrite growth of Cu-9Al alloy in the continuous casting process

Autori
Pezer, Robert ; Ivanić, Ivana ; Kožuh, Stjepan ; Anžel, Ivan ; Gojić, Mirko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Conference proceedings METAL 2019 / - Ostrava : Tanger, 2019, 1345-1350

ISBN
978-80-87294-92-5

Skup
28th International Conference on Metallurgy and Materials - METAL 2019

Mjesto i datum
Brno, Češka Republika, 22.05.2019. - 24.05.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Metal processing, continuous casting, solidification, thermo-mechanical, multiphysics

Sažetak
We performed continuous casting of Cu-9Al alloy, following microstructure characterization and computational simulation. Numerical simulation was done on the two scales: within the thermo- mechanical model on the macro scale and the phase- field approach on the mesoscopic scale. In the experimental part of this work, Cu-9Al bars were obtained by the continuous casting (CC) process which was subsequently analyzed by optical, scanning electron microscopy, and energy- dispersive X- ray spectroscopy. For the precise quantitative description, a full coupled thermo- mechanical model of the casting process was implemented. Within this model, we successfully numerically simulated time-dependent temperature and solid fraction fields within standard macro phenomenological models. The obtained fields were used as input for a mesoscale multi-phase- field model of the constrained dendrite growth into the undercooled melt. Simulations of dendrite structure were compared with the experimental findings and thoroughly analyzed. Two scale simulation frame work has been identified as a useful tool for quantitative prediction of dendrite morphology and CC process optimization.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Metalurgija

POVEZANOST RADA