Various research regarding new methods of fabrication and modifications of Aluminium alloy to improve the existing properties are going on. The wide application of aluminium in aerospace and automobile Industry, demands improved mechanical properties with little to zero increment in weight. This work is based on the fabrication of hybrid metal matrix composites of 7075 aluminium alloy with the addition of TiC (Titanium Carbide) and Al2O3(Aluminium Oxide) reinforcements is fabricated using stir casting technique. Weight percentage of 5%, Al2O3 8% and Tic 12%, Tic 15% and Al2O3 10%. Samples are prepared for each mass distribution . Varying weight fraction samples are prepared to have a proper comparative study of the mechanical properties. In the fabrication we gradually increased the weight of TiC and Al2O3 as we progressed with the experiment.. The objective is to have a clear idea of mechanical properties variation with variation in reinforcement. Hardness tests is done using optical Brinell Hardness Testing machine . A proper characterisation of the samples was attained by using advanced electron microscopes. Tensile properties of the samples…

Inconel 825 is nickel (Ni)-iron (Fe)-chromium (Cr) alloy with additions of copper (Cu), molybdenum (Mo), and titanium (Ti). The alloy has excellent resistance to corrosion and is often the most cost-effective alloy in sulphuric acid piping vessels and chemical process equipment. No attempt of applying MQL with the addition of nanoparticles was reported conferring to the works accessed. The present study is focused on evaluating the effect of the addition of nanoparticles (CUO, Al2O3 and CNT) in vegetable oil applied by MQL mode during turning of Inconel 825 with coated carbide tool. Cutting force, surface roughness and tool wear are evaluated. The results showed that the addition of nCNT substantially improved the machining performance, smaller flank and crater wear on the tool edge, while the adhesion and abrasion are observed as wear mechanism and better results are obtained at 0.5% of nCNT+ vegetable oil to produce the lowest values.

It is very important to derive the optimal process parameters combination in EDM process to enhance its efficacy. In the present study an attempt has been made to perform multiple criteria decision making using Taguchi-Methodology in EDM process. Titanium (Ti-6Al-4V) alloy has been machined as workpiece specimen with tungsten carbide tool electrode. Material removal rate, surface roughness and tool wear rate has been used as performance measures. From the experimental results, the optimal process parameters has been found. It has been observed Peak current has more influential nature on determining the performance measures in EDM process.

Surface properties have vital role in overall performance of parts like brake shoe pad. The mechanical and residual stress measurements of aluminium alloy 5083 were investigated on friction stir processed plates using reinforcements of chromium oxide (Cr2O3) and Titanium di oxide (TiO2) separately as well as combination of these powders. A comparative analysis was performed to study the effects of reinforcements and tool type (cylindrical and threaded) keeping the FSP parameters and volume fraction of reinforcements as constant. This investigation shows that there was a significant increase in surface hardness (118 HRC) as well as decrease in residual stress compare to the base metal. This study also reveals that the threaded tool with a reinforcement of Cr2O3 and TiO2 reflected better mechanical properties than the cylindrical tool. The SEM image shows that the even distributions of reinforcement particles are presence in the processed zone. Mechanical properties like surface roughness, surface hardness and residual stress of samples were investigated. The significant improvement in the surface plates can be used in brake pad in automobile industries.

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This specification covers a magnetically soft nickel-iron alloy in the form of sheet and strip.

This specification covers a magnetic nickel-iron alloy in the form of sheet and strip.