Microstructures and mechanical properties of AZ91 D magnesium alloy forgings produced by liquid forging,rheoforging and thixoforging were studied. The results show that although the microstructures of the three forging parts are all composed of α-Mg and β-Mg17Al12 phases, their shapes, sizes, numbers and distributions are all different, which influences the mechanical properties of die forgings in different degrees. The tensile fracture morphologies were observed and their energy spectrums were analyzed by ...
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