Abrasive Wear Characteristics of In Situ TiC-Reinforced Iron Matrix Surface Gradient Composites

Abstract:

An in-situ synthesis process combining an infiltration casting with a following heating treatment was applied to fabricate special titanium carbide (TiC) particles-reinforced iron matrix surface gradient composites in this article. The microstructure and wear-resistance of the titanium carbide particle reinforced iron matrix surface gradient composites were researched by using differential scanning calorimetry, X-ray diffraction, scanning electron microscopy and abrasive wear testing. The results showed that two materials had been reacted completely between the titanium plate and gray cast iron, and the titanium carbide particles distributed in the matrix with the thickness of 266.7 μm reaction layer. The average size of titanium carbide between titanium plate and iron matrix was about 1-2μm. Under the same condition, the wear mechanism of titanium carbide particles-reinforced iron matrix surface gradient composites appeared as: micro-ploughing, micro-cutting and broken titanium carbide.

• Periodical: Advanced Materials Research (Volumes 535-537)
• Pages: 81-85
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.535-537.81
• Online since: June 2012
• Authors: Liang Liang Wang, Yun Hua Xu, Li Sheng Zhong
• Keywords: Abrasive Wear, Surface Gradient Composite, TiC, Wear Morphology

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