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Study of a fine-grained AZ31 magnesium alloy prepared by equal channel angular pressing

机译:等通道角向压制制备细晶AZ31镁合金的研究

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摘要

A fine-grained magnesium alloy AZ31 was obtained through equal channel angular pressing (ECAP).Mechanical properties and the microstructures after deformation under tension and compression were investigated. The tensile strength, compressive strength and the elongation to failure of the fine-grained AZ 31 are enhanced due to the reduction of grain size. The compressive ultimate strain (CUS) of the fine-grained AZ 31 magnesium alloy is lower than that of the initial state due to the formation of shear bands during compression. The ECAP processed AZ31 magnesium alloy exhibited no tension/compression asymmetry in yielding.
机译:通过等通道角挤压(ECAP)制得了细晶粒镁合金AZ31。研究了拉伸和压缩变形后的力学性能和显微组织。由于晶粒尺寸的减小,提高了细颗粒AZ 31的拉伸强度,抗压强度和断裂伸长率。由于压缩过程中剪切带的形成,AZ 31镁细晶粒合金的压缩极限应变(CUS)低于初始状态。 ECAP处理的AZ31镁合金在屈服方面没有表现出拉伸/压缩不对称性。

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