Effects of Sintering Temperature on Microstructure and Wear Properties of Al₂O₃ Particle Reinforced Al Composites

Abstract:

Al₂O₃ particle reinforced aluminum composites were prepared by powder metallurgy process. The effects of sintering temperature on microstructure and tribological characteristic were investigated with the combination of experimental results and theoretical analysis. The composite sintered at 550 oC shows high relative density and strong interfacial bonding, whereas the composites sintered at lower and higher temperature indicate no interfacial bonding and poor interfacial bonding, respectively. The surface morphology observed by scanning electron microscopy (SEM) indicated that the grains of the Al-based composites sintered at 550 oC were uniform and compact, which were in agreement with the properties of high density and tribological properties.

• Periodical: Advanced Materials Research (Volume 1095)
• Pages: 16-19
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1095.16
• Online since: March 2015
• Authors: Tian Guo Wang*, Qun Qin, Qi Chao Liang
• Keywords: Mechanical Properties, Microstructure, Powder metallurgy, Titanium Alloy

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