SIMULATION OF TEXTURE DEVELOPMENT IN PURE ALUMINUM DEFORMED BY EQUAL CHANNEL ANGULAR PRESSING

A texture simulation procedure for multi-pass equal channel angular pressing (ECAP) was studied by using a computer texture simulation based on Visco Plastic Self Consistent modeling. The program inputs were the initial texture and the loading condition and the output was the texture after deformation. The simulation was done for each individual pass of ECAP and the results were compared with experimental texture results of commercially pure aluminum processed by ECAP. For simulation of the first pass, X-ray measured texture of the aluminum rod before ECAP was used as input data. Simulation of each pass after that was carried out by using input data from previous simulation and rotating this texture for different routes in ECAP. There was a good agreement in peak position between experimental and simulated pole figures after first and second passes.