Mechanical Properties of 5052 Al Alloy Processed by Groove Pressing

Abstract:

Three groups of commercial 5052 Al alloy sheets were subjected to groove pressing (GP) at room temperature using parallel GP, 180° cross GP and 90° cross GP, respectively. Mechanical properties and fracture modes of as-annealed and GPed samples were investigated. The microhardness of the samples processed by parallel GP increases by a factor of about 1.6 compared to the as-annealed state, and that of the samples processed by cross GP is higher. The ultimate tensile strength (UTS) increases significantly after GP, while the elongation decreases. But they are strongly dependence on the number of GP passes and the pressing modes. Besides, fracture surface morphology demonstrates that the fracture mode is ductile even after four passes. With increasing the number of GP pass, the amount of small dimples increases, and the dimples become shallow and more uniform.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 1831-1835
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.1831
• Online since: February 2012
• Authors: Kai Huai Yang, Na Lin, Shao Feng Zeng, Wen Zhe Chen
• Keywords: 5052 Al, Fractography, Groove Pressing, Mechanical Property

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