International Journal of Innovative Research and Development

Abstract

Composite materials are versatile materials which are widely used because of their advantages like high strength to weight ratio, low cost, various combinations in quality and quantity etc. In this FRP composites contribution is more but major drawback is the fabrication process of fiber, it is not environmental friendly and costly. This scenario made researchers to look for alternatives which are easily available, ecofriendly, and low cost. The researchers found natural fibers like Jute, Bamboo, Hemp, Sisal, Coir, etc., are giving nearer results with artificial fibers especially with glass fibers. Researchers also found by using some surface treatment on fibers can improve interfacial properties (Bonding, Wettability) will enhance the strength considerably. From literature it is found that natural fibers can be surface treated by soaking them in alkali and acidic medium which will improve the wettability. Hence in the present investigation alkali (2% NaOH), Acid (2% HCl) and Distilled water soaking has chosen for 3, 6, 9 hours and then washed in normal water and dried in sun light. Then these fiber mats were reinforced with epoxy by hand layup process and closed molding. After curing it for 8 hours, the composites were heat treated for an hour at 75° (Glass transition temperature). Finally, the specimens were cut as per ASTM standards for Tensile strength and testing was been conducted. Finally, the results were tabulate and graphs were plotted which concluded that surface treatment of 2% HCl and NaOH both are better for 6 hour duration. The maximum tensile strength obtained for HCl at 6 hours was 104 MPa.

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Abstract

From the past few decades, the application of lightweight materials for automobiles and aerospace components has been improving its fuel efficiency however, the development of high wear resistant materials using monolithic materials such as aluminum and titanium alloys has reached a limit, which lead to development of composite materials. In the present research work the study is made on the influence of Al7075/Albite composites on abrasive wear and corrosion behavior of the Al7075/Albite composites which were fabricated using liquid metallurgy route by varying the albite particulates from 2wt% to 10wt% in steps of 2. The casted specimens were heat treated at solutionizing temperature 470° C for 2 hours followed by quenching in ice media. The quenched specimens were subjected to both natural and artificial ageing. The microstructural analysis clearly shows that uniform distribution of albite particulates in Al7075 matrix alloy. The Hardness, abrasive wear and Corrosion tests were conducted for heat treated composites, the study reveals that the increase in Hardness, wear resistance and decrease in the corrosion rate of heat treated Al7075/Albite composites. 

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