Globular structure generation and mechanical properties of thixoformed magnesium alloy
作者： Z. W. Huang , J. Huang , T. Q. Deng , X. X. Huang , C. J. Sun
DOI: 10.1179/1432891713Z.000000000237
关键词: Ultimate tensile strength 、 Materials science 、 Equiaxed crystals 、 Metallurgy 、 Equal channel angular extrusion 、 Elongation 、 Magnesium alloy 、 Microstructure 、 Grain boundary 、 Alloy
摘要: For the alloy to be shaped in semisolid state, it must have an appreciable melting range; before thixoforming, microstructures consist of solid metal spheroids a liquid matrix. Equal channel angular extrusion (ECAE) was used as process predeform cast AZ80 magnesium partial remelting. The results show that fine and equiaxed grains are obtained due dynamic recrystallisation during ECAE. Following remelting each case, microstructure consisted globular with film along grain boundaries. During remelting, sizes at 560°C were smaller than those 550°C. Moreover, degree spheroidisation greater Good mechanical properties for thixoformed prepared by six-pass ECAE yield strength 210 MPa, ultimate tensile 320 MPa elongation fracture 9·2%. also process, plus can ...
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