A Study on Dry Sliding Wear Behaviour of Hybrid Metal Matrix Composites at Room Temperature

Abstract:

An attempt has been made to study the dry sliding wear behaviour of Aluminium based hybrid composites in room temperature.Al 2219 is used as base material with B₄C and MoS₂ as reinforcements. The hybrid composite were prepared by conventional stir casting technique. The dry sliding wear test were carried out for various parameters like sliding distance, applied load and sliding speed. The Optical Microscope and SEM results showed the presence of B₄C and MoS₂, which are fairly uniform and randomly dispersed on matrix material.XRD analysis, shown the presence of B₄C and MoS₂ phases in the prepared composites.The incorporation of reinforcement particles B₄C and MoS₂ reduces the specific wear rate of composites. The addition of MoS₂ as a secondary reinforcement has significant effect on reducing specific wear rate of prepared composites. By using SEM worn surface of hybrid composites were studied.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 219-228
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.219
• Online since: June 2015
• Authors: N.G. Siddeshkumar, G.S. Shiva Shankar*, S. Basavarajappa
• Keywords: Dry Sliding Wear, Hybrid Composites, Microstructure, Room Temperature, Specific Wear Rate, Stir Casting, Worn Surface, XRD

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