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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Tribological behavior of aluminum hybrid composites studied by application of factorial techniques. Tribological tests were performed on a block-on-disc tribometer without lubrication. Log In Sign Up. The main parameter analyzed compocawting the paper is coefficient of friction obtained in the conditions with and without lubrication.
A aluminium alloy is used as a base matrix alloy, The tests were done for different normal load values, sliding speeds, sliding distance, with and without lubrication. Tribological testing have compovasting conducted on a block-on-disc tribometer with three varying loads 10, 20 and 30 N and three sliding speeds 0. Ads help cover our server costs. 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.
One of the possible solutions for overcoming of poor 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.
Fompocasting tests are realized on tribometer with block on disc compact pair in Tribological Center of Faculty of Engineering in Kragujevac. Corrosion processes have occurred in the composite matrix.
Al2O3 particles as reinforcement were added into the semi-solid A alloy by infiltration and admixing. Remember me on this computer.
Microstructural examinations were performed after day exposure of thermally treated composites in the sodium-chloride solution. Sliding distance of m was constant.
The effects of load, sliding speed, weight percentage of graphite reinforcement, and sliding distance on the wear rate are A side by side investigation of the microstructure and hardness of the composite and the base alloy A side by side investigation compocssting the microstructure and hardness of the composite and the base alloy cast into a steel mould was done. Help Center Find new research papers in: Composite materials were produced by the compocasting process using mechanical mixing of the matrix, i.
Specific wear rate prediction was done using artificial neural network ANN. Tribological tests are realized It was found that corrosion resistance of the composites decreased with increase in content of SiC particles.
The goal of the paper was to optimize the influencing parameters in order to minimize specific wear rate using the Taguchi method. The composites were produced by compo casting technique and then subjected to the thermal treatment T4 regime.
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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. Click here to sign up. Hybrid composite specimen is obtained by compocasting procedure. The mechanical properties of the composite are improved in relation to the base alloy. One of the possible solutions for overcoming of poor Al-alloys tribological properties is using of different types of metal matrix composites MMCs.
Enter the email address you signed up with and we’ll email you a reset link. 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.
Compocasting Research Papers –
These samples were additionally pressed in a special tooling by which tensile test samples were obtained. Application of the compocasting process led to a transformation of a dendritic to a nondendritic structure of the base alloy. This article analyzes the influence of graphite compoacsting, load, sliding speed, and sliding distance on tribological behavior of A aluminum matrix composites reinforced with silicon carbide and graphite using the full-factorial Corrosion did not affect SiC particles in the composites.
MMCs based on hypoeutectic Al-Si alloy: The local progress of corrosion in depth of the composite matrix was noticed in micro-cracks.