Application of Taguchi Method for Optimization of Process Parameters for Wear loss of LM25/Flyash Composite
Metal matrix composites (MMCs) are now gaining their usage in tribological industries because of their inherent properties like high strength to weight ratio, low wear rate etc. The present study deals with investigation relating to the influence of wear parameters like sliding speed, applied load, reinforcement wt% and sliding distance on the dry sliding wear. A pin-on-disc apparatus was used to conduct the dry sliding wear test. The design of experiment approach was employed to acquire data in controlled way using Taguchi method. Multiple regression analysis, Signal-to-Noise ratio and Analysis of Variance were employed to investigate the wear behaviour of aluminium composite. The incorporation of fly ash as reinforcement material in aluminium matrix material improves the tribological characteristics.
Some Studies on Aluminium - Fly Ash Composites Fabricated by Two Step Stir Casting Method
Development of lightweight materials has provided the automotive industry with numerous possibilities for vehicle weight reduction. Progress in this area depends on the development of materials, processing techniques, surface and heat treatments. Since fuel consumption relates directly to vehicle weight, reducing weight can improve the fuel usage and price-to-performance ratio. Aluminium matrix ceramic reinforcement composites have attracted increasing attention due to their combined properties such as high specific strength, high stiffness, low thermal expansion coefficient and superior dimensional stability at elevated temperatures as compared to the monolithic materials. Aluminium reinforced with conventional ceramic materials such as SiC / Al2O3 are gradually being implemented into the production of pistons, cylinders, engine blocks, brakes and power transmission system elements in automobile industry. Fly ash (SiO2, Al2O3, Fe2O3 as major constituents and oxides of Mg, Ca, Na, K etc. as minor constituents) is one of the most inexpensive and low density material which is abundantly available as solid waste byproduct during combustion of coal in thermal power plants. The present investigation has been focused on the utilization of fly ash in useful manner by dispersing it into aluminium to produce composites by a two step stir casting method to overcome the cost barrier for wide spread applications in automotive systems. An attempt has also been made to investigate its microstructure, mechanical, wear and corrosion behavior of composites.
Handbook of Concrete Engineering
Handbook of concrete engineering , Handbook of concrete engineering , مرکز فناوری اطلاعات و اطلاع رسانی کشاورزی