镁合金锻造工艺及性能提升研究

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Abstract：The requirement of complex structural parts were increaced which had the demand of lightweight and high mechanical performance，the traditional manufacturing processand materials were not satisfied the technical requirements of the products.Magnesium alloy was satisfied the technical requirements which was manufactured by isothermal and multiple forging process.This paper was analyzed the forging processand made the performance improvement experiment for magnesium alloy. After multiple isothermal forging for magnesium alloy，the microstructure of magnesium alloy was optimized，and the grain distribution was adjusted more uniform，the tensile strength was increased 20% ，and the elongation was increased 113% . At the same time，multiple isothermal forging could repaired the defects of the firstforging bythe action of thermal machinery，which improved the density of the material，eliminated the internal stressduring the first forging process，improvedthe stabilityandservice life ofthe material.The magnesium allywillbeapplied in the mass production of aerospace，biomedical， motor parts and lightweight parts.

Keywords： magnesium alloy; isothermal forging; forgings microstructure performance

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性能提升试验进行分析与研究。（剩余4738字）