Basalt fiber is a low cost materiel obtained from the Basalt rock from earth, and it can be divided into small pieces to form fiber. In this paper dealing with Basalt fiber manufacturing, property of composites and application are reviewed. The results indicate that as compared to glass fibers, carbon fibers and armide fiber, basalt fiber possesses excellent machine driven properties such as wave permeability, electrical properties, non-conductive and insulation properties. BFRP has higher flexural strength and better adhesion as related to CFRP and GFRP. When temperature increases thermal and mechanical properties of BFRP reduces considerable. Due to the above advantages, the addition of Basalt fiber and its composites can be used in sound and sound absorption and thermal insulation application.
Friction-Stir Welding (FSW) is a solid-state procedure for welding two plates in which there is relative motion between the tool and workpiece, which creates the heat required for the material of the two edges to join by atomic diffusion. The present research article focuses on friction stir welding of dissimilar aluminum-silicon alloys utilizing a vertical milling machine and altering process parameters. Moreover, testing is done on the weld joints for the best process parameter. The process parameters considered in the present work for joining dissimilar aluminum alloys primarily were a constant tool feed rate of 63 mm/min and three varied tool rotational speed rates of 710, 1000 and 1400 rpm. Mechanical characterization of weld joints, such as tensile, hardness, microstructural studies and surface roughness tests, were used to identify the most optimal parameter. The results indicated that Al-Si alloys having Al-5%Si with Al-12%Si FSW joints welded using 1000 rpm tool rotational speed proved to have better hardness and lesser surface roughness while, Al-Si alloys having Al-12%Si with Al-17%Si FSW joints, had better hardness and roughness properties when welded using 1400 rpm tool rotational speed. Concerning the ultimate tensile strength, Al-Si alloys having Al-5%Si with Al-12%Si and Al-12%Si with Al-17%Si FSW joints welded using 1400 rpm tool rotational speed offered better results.
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