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研究搅拌摩擦加工工艺对Al3Zrp/6063铝基复合材料组织性能的影响。该复合材料在6063-5%(K2ZrF6)体系下原位内生获得,利用OM、XRD、SEM观测原位内生颗粒Al3Zr的形貌、分布及尺寸,分析材料性能。实验分析可得:经搅拌摩擦处理后,复合材料的增强体更加细小均匀;基体晶粒破碎,晶粒形状发生改变;材料的抗拉强度变大,延伸率变大;具有超塑性,在变形温度500℃,应变速率1.67×10-2s-1,材料的延伸率达348.16%。
The effect of friction stir processing on the microstructure and properties of Al3Zrp / 6063 aluminum matrix composites was studied. The composite material was endogenously obtained in-situ at 6063-5% (K2ZrF6) system. The morphology, distribution and size of in-situ particles Al3Zr were observed by OM, XRD and SEM, and the material properties were analyzed. Experimental analysis shows that: after the friction stir treatment, the composite reinforcements are more and more uniform; the grains of the matrix are broken and the grain shape changes; the tensile strength of the material becomes larger and the elongation rate becomes larger; the superplasticity is deformed, Temperature 500 ℃, strain rate 1.67 × 10-2s-1, the elongation of the material up to 348.16%.