Research & Projects
Research & Projects
This thesis explores powder-bed additive layer manufacturing to develop a process map with core process variables along with material design strategy (alloying) to fabricate fully dense, defect-free refractory metals and alloys.
Equimolar AlCuFeMn alloy prepared by laboratory-scale arc melting of high purity metals possess a bulk hardness of ~ 380 HV and a relative density of 6.2. The primary phases reported in as-cast alloy are a BCC and an FCC solid solution. Annealing the as-cast alloy at 900°C for 100 hours leads to a dispersed copper-rich, FCC lamellar phase in an iron-rich continuous BCC matrix. No significant loss in hardness after annealing occurred. Results suggest that the alloy is suitable for high-temperature applications.
The effect of silicon on the microstructure and mechanical property after heat treatment of AlCuFeMn(Si) alloy is unknown. Therefore, the present work investigates the impact of silicon in heat-treated near-equimolar AlCuFeMn(Si) alloy.
In comparison with other offline approaches for analyzing the hot rolling process, the finite element method (FEM) offers the most practical and accurate framework due to its ability to capture complex thermo-mechanical interactions. In this study, a coupled thermo-mechanical three-dimensional finite element model is developed using ABAQUS simulation software to investigate the steel hot rolling process.
The primary objective is to evaluate the influence of key process parameters—specifically rolling speed and percent reduction—on the thermo-mechanical responses of the rolled steel beam.