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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One of the possible solutions for overcoming of poor Al-alloys tribological properties is using of different types of metal matrix composites MMCs.
The results are divided in cpmpocasting groups. This paper presents a short summary of the researches conducted in past few years concerning the MMCs with A Al-Si alloy matrix and different second phase. Log In Sign Up.
A side by side investigation of the microstructure and hardness compocaasting the composite and the base alloy cast into a steel mould was done. The composites were produced by compo casting technique and then subjected to the thermal treatment T4 regime.
The testing included sliding speeds of 0. Using of Al-alloys for producing of engine cylinders and blocks, instead of gray cast iron, results with weight savings and lower fuel consumption and therefore reduced pollution. Tribological tests are realized In the first dompocasting are the results that A compocsting alloy is used as a base matrix alloy, Hybrid composites are obtained by compo casting procedure.
It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. One of the possible solutions for overcoming of poor A side by side investigation of the microstructure and hardness of the composite and the base alloy The cpmpocasting has shown the presence of MML, which means that there was transfer of material from steel disc to composite block.
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Corrosion processes have occurred in the composite matrix. In the paper were shown the test results of tribological characteristics of hybrid composites with alloy base A reinforced cmopocasting SiC and graphite.
Application of the compocasting process led to a transformation of a dendritic to a nondendritic structure of the base alloy. Composite are obtained using the compocasting procedure.
Compocasting Research Papers –
Ads help cover our server costs. Tribological tests are realized on tribometer with block on disc compact pair in Tribological Center of Faculty of Engineering in Kragujevac.
Specific wear rate prediction was done using artificial neural network ANN. In this paper, the basic characteristics microstructure and hardness and tribological properties of two A Al-Si alloy base MMCs, reinforced with Al2O3 fompocasting were analysed and compared with gray cast iron as a standard ;rocess for cylinder blocks.
The analysis showed that the sliding speed has the greatest influence on specific wear rate 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. A regression analysis and experiment corroboration was conducted in order to verify the results of the optimization. Tribological tests were performed on a block-on-disc tribometer without lubrication.
By the experimental plan, test is conducted under three different values of sliding speed, three different values of normal load, different sliding distances, and also different lubricants.
Composite materials were produced by the compocasting process using mechanical mixing of the matrix, i. Corrosion did not affect SiC particles in the composites. Comlocasting local progress of corrosion in depth of the composite matrix was noticed in micro-cracks. Remember me on this computer. Sliding distance of m was constant.
Tribological properties in dry sliding conditions. MMCs based on hypoeutectic Al-Si alloy: Proceess goal of the paper was to optimize the influencing parameters in order to minimize specific wear rate using the Taguchi method.
The main parameter analyzed in the paper is coefficient of friction obtained in the conditions with and without lubrication.
Al2O3 particles as reinforcement were added into the semi-solid A alloy by infiltration and admixing.