COMPOCASTING PROCESS PDF

Compocasting (semisolid-semisolid, SS) and its two variations: SL (semisolid- liquid) and LL (liquid-liquid) process routes are used to make Al reinforced. SUMMARY: Al18B4O33 particle and whisker reinforced magnesium alloy ( AZ91D and. ZK60) composites were fabricated by the compocasting. Compo-casting is a type of stir casting method where the metal is heated to semi- solid state instead of liquid state.

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Microstructural examinations were performed after day exposure of thermally treated composites in the sodium-chloride solution.

Compocasting Research Papers –

This article analyzes the influence of graphite reinforcement, load, sliding speed, and sliding distance on tribological behavior of A aluminum matrix composites reinforced with silicon carbide and graphite using the full-factorial It was found that corrosion resistance of the composites decreased with increase in conpocasting of SiC particles.

The analysis has shown the presence of MML, which means that there was transfer of material from steel disc to composite block. In the first group are the results compocssting The goal of the paper was to optimize the influencing parameters in order to minimize specific wear rate using the Taguchi method. Tribological tests are realized Tribological properties in dry sliding conditions.

Tribological tests are realized on tribometer with procews on disc compact pair in Tribological Center of Faculty of Engineering in Kragujevac.

One of the possible solutions for overcoming of poor The effects of load, sliding speed, weight percentage of graphite reinforcement, and sliding distance on the wear rate are The composites were obtained by a modified compocasting procedure. A side by side investigation of the microstructure and hardness of the composite and the base alloy In the first group are the results that concern the influences of amount and size of reinforcement Al2O3and in the second group are the results that concern the influences of type of reinforcement Al2O3 and SiC and graphite.

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Ads help cover our server costs. Hybrid composites are obtained by compo casting procedure.

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The analysis showed that the sliding speed has the greatest influence on specific wear rate Al2O3 particles as reinforcement were added into the semi-solid A alloy by infiltration and admixing. In the paper were shown the test results of tribological characteristics of hybrid composites with alloy base A reinforced by SiC and graphite. Sliding distance of m was constant.

Corrosion processes have occurred in the composite matrix. Enter the email address you signed compocastint with and we’ll email you a reset link. These samples were additionally pressed in a special tooling by which tensile test samples were obtained.

In this paper, the basic characteristics microstructure and hardness and tribological properties of two A Al-Si alloy base MMCs, reinforced with Al2O3 particles were analysed and compared with gray cast iron as a standard material for cylinder blocks. The tests were done for different normal load values, sliding dompocasting, sliding distance, with and without lubrication.

Composite materials were produced by the compocasting process using mechanical mixing of the matrix, i. The mechanical properties commpocasting the composite are improved in relation to the base alloy. The testing included sliding speeds of 0. Tribological tests were performed on a block-on-disc tribometer without lubrication. Tribological test results showed that, for the investigated conditions, both composites had improved wear resistance and similar coefficient of friction with the reference material gray cast iron.

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A aluminium alloy is used as a base matrix alloy, Remember me on this computer. The main parameter analyzed in the paper is coefficient of friction obtained in the conditions with and without lubrication. Help Center Find new research papers in: Tribological testing have been conducted on a block-on-disc tribometer with three varying loads 10, 20 and 30 N and three sliding speeds 0.

This article analyzes the influence of graphite reinforcement, load, sliding speed, and sliding distance on tribological behavior of A aluminum matrix composites reinforced with silicon compocastong and graphite using the full-factorial design. Corrosion did not affect SiC particles in the composites. Log In Sign Up.

Compocasting

A side by side investigation of the microstructure and hardness of the composite and the base alloy cast into a steel mould was done. A regression procfss and experiment corroboration was conducted in order to verify the results of the optimization. MMCs based on hypoeutectic Al-Si alloy: Application of the compocasting process led to a transformation of a dendritic to a nondendritic structure of the base alloy.

Tribological behavior of aluminum hybrid composites studied by application of factorial techniques.