Processing and Abrasive Wear Study of Fe-Al₂O₃-TiC Composite by Pressureless Ti-Activated Reactive Melt Infiltration

Abstract:

Fe-Al2O3-TiC composite were fabricated by pressureless Ti-activated reactive melt infiltration. In this paper, a kind of Al2O3-Ti porous skeleton was prepared to be infiltrated with Fe-2Cr-3C alloy under vacuum. The microstructure and component analysis was investigated by scanning electron microscopy (SEM) and X-ray diffraction analysis (XRD). Subsequently, the wear testing was conducted to investigate the wear resistance of the Fe-Al2O3-TiC composites. The result show that the Fe-2Cr-3C alloy melt can full infiltrate the two kinds of Al2O3-Ti porous skeleton at 1390°C for 2 h. In the Fe-Al2O3-TiC composite, the coarse Al2O3 particles was surrounded by the TiC layer, which was generated by the Ti-C in-situ reaction in the infiltration process. The abrasive wear resistance of Fe-Al2O3-TiC composite is better than that of the wear resistant cast iron commonly used in industry.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 933-937
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.933
• Online since: February 2012
• Authors: Yong Liang Shi, Zhi Meng Guo, Jun Jie Hao, Tao Lin, Xian Zeng
• Keywords: Fe-Al₂O₃-Tic Composites, In Situ Reaction, Porous Material, Pressureless Infiltration

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