Transactions of Materials and Heat Treatment

Title：Influence of multi-directional forging on microstructure and properties for AZ80 magnesium alloy used for automobile

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ClassificationCode：TG132.25

year,vol(issue):pagenumber：2021,46(3):32-36

Abstract：

In order to improve the microstructure and properties of as-cast AZ80 magnesium alloy, the multi-directional forging test was carried out, and the microstructure and mechanical properties were tested and analyzed by metallographic analysis, EBSD (Electron Back Scattering Diffraction) analysis and tensile test. The results show that the average grain size of AZ80 magnesium alloy after forging decreases by 76 μm, the tensile strength increases by 66 MPa, the yield strength increases by 79 MPa, the elongation after fracture increases by 6%, and the fracture mode changes from brittle fracture to ductile fracture. After forging, the internal grains of alloy are fine equiaxed crystals. Thus, forging significantly improves the internal microstructure and mechanical properties of alloy.

Funds：

衢州市科技计划指导性项目(2019017)

余富忠（1972-），男，本科，实验员 E-mail：qzyfz@126.com

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