原位合金化和原位颗粒共同强化铝基复合材料的微观组织

Microstructure of Al Matrix Composites Strengthened by Combined In-Situ Alloying Elements and In-Situ Alumina Particulate Strengthening

摘要: 制备了Al₂O₃/Al-Cu和Al₂O₃/Al-Cu-Si原位复合材料,采用SEM观察显微组织,XRD分析物相,EDS分析相所含元素.初步结果表明,原位合金化和原位颗粒共同强化金属基体是可行的,合金元素Cu和Si出现在基体中,细小增强颗粒Al₂O₃呈弥散分布.

Abstract: Al₂O₃/Al-Cu and Al₂O₃/Al-Cu-Si composites are fabricated from in-situ reaction Al+CuO and Al+CuO+SiO₂ respectively. SEM observation of the morphologies of the materials, XRD analysis of the phases, and EDS analysis of elements in the phases are performed. Primilinary results show that alloy elements Cu and Si are presented as predicted, as well as fine and homogeneously distributed Al₂O₃ particles formed, which indicate that the newly developed concept is feasible.