Grain Refinement in Constrained Groove Pressing of 7050 Aluminum Alloy
Constrained groove pressing is a simple and effective method of grain refinement. Using the experimental data obtained by regression analysis, this paper analyzes the simulation of the four pass constrained groove pressing deformation of 7050 aluminum alloy. The simulation results show that the grain size of the billet is refined significantly after four pass constrained groove pressing deformation and decreases from the original 90 μm to a minimum of 14.0 μm. With the increase of the number of deformation passes, refinement effect becomes weakened gradually, the grain size tends to stabilize and the organization is more uniform.
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
X. L. Dong et al., "Grain Refinement in Constrained Groove Pressing of 7050 Aluminum Alloy", Advanced Materials Research, Vols. 189-193, pp. 2823-2826, 2011