Grain Refinement in Constrained Groove Pressing of 7050 Aluminum Alloy

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 189-193)
• Pages: 2823-2826
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.189-193.2823
• Online since: February 2011
• Authors: Xiao Lei Dong, Bing Yun, Zhi Hao Ma
• Keywords: 7050 Aluminium Alloy, Constrained Groove Pressing, Dynamic Recrystallization (DRX), Grain Refinement

References

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DOI: 10.1049/cp:20060794

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