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采用搅拌摩擦加工方法,成功将金属钒粉高效地添加到铸态AZ81母体镁合金中,制备出电子电气用新型含钒镁合金,并进行显微组织、物相组成、微观织构和力学性能的测试与分析。结果表明:新型合金晶粒细小,由α-Mg基体相和少量的Mg_(17)Al_(12)相、Al3V相组成。与铸态AZ81母体镁合金相比,该新型含钒镁合金内部显微织构明显弱化、力学性能明显提高,织构Max值降低30%,抗拉强度提高27%,屈服强度提高60%,断后伸长率提高82%,断裂方式从混合断裂变为韧性断裂。
Using the method of friction stir processing, the vanadium powder was successfully added to the as-cast AZ81 matrix magnesium alloy, and a new type of vanadium-magnesium alloy for electrical and electronic applications was prepared. The microstructure, phase composition, microstructure and mechanical properties Test and analysis The results show that the new alloy is composed of α - Mg matrix and a small amount of Mg 17 Al 12 phase and Al 3 V phase. Compared with the as-cast AZ81 parent magnesium alloy, the microstructure of the new vanadium-magnesium alloy significantly weakened and the mechanical properties were significantly improved. The Max value of the texture was reduced by 30%, the tensile strength was increased by 27% and the yield strength was increased by 60% Elongation at break increased by 82% and fracture mode changed from mixed fracture to ductile fracture.