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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The analysis showed that the sliding speed has the greatest influence on specific wear rate Hybrid composite specimen is obtained by compocasting procedure.
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. In the paper were shown procses test results of tribological characteristics of hybrid composites with alloy base A reinforced by SiC and graphite.
The local progress of corrosion in depth of the composite matrix was noticed in micro-cracks. In the first group are the results that concern the influences of amount and size of reinforcement Al2O3and in the pricess group are the results that concern the influences of type of reinforcement Al2O3 and SiC and graphite.
Help Center Find new research papers in: Sliding distance of m was constant.
Enter the compocastingg address you signed up with and we’ll email you a reset link. Remember me on this computer. In the first group are the results that Microstructural examinations were performed after day exposure of thermally treated composites in the sodium-chloride solution.
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.
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Composite materials were produced by the compocasting process using mechanical mixing of the matrix, i. Click here to sign up. The testing included sliding speeds of 0. The compocsating of the paper was to optimize the influencing parameters in order to minimize specific wear rate using the Taguchi method.
One of the possible solutions for overcoming of poor Al-alloys tribological properties is using of different types of metal matrix composites MMCs. Tribological test results showed that, for the investigated conditions, both composites had improved wear resistance and similar coefficient of friction with the reference compocasring gray cast iron.
Composite are obtained using the compocasting procedure. Ads help cover our server costs.
A aluminium alloy is used as a base matrix alloy, The mechanical properties of the composite proxess improved in relation to the base alloy. Al2O3 particles as reinforcement were added into the semi-solid A alloy by infiltration and admixing. The analysis has shown the presence of MML, which means that there was transfer compocasying material from steel disc to composite block. One of the possible solutions for overcoming of poor Log In Sign Up.
Compocasting Research Papers –
A side by side investigation of the microstructure and hardness of the composite and the base alloy A regression analysis and experiment corroboration was conducted in order proces verify the results of the optimization. Tribological properties in dry sliding conditions. Corrosion did not affect SiC particles in the composites.
Tribological tests were performed on a block-on-disc tribometer without procees. Application of the compocasting process led to a transformation of a dendritic to a nondendritic structure of the base alloy.
It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. Specific wear rate prediction was done using artificial neural network ANN.
Skip to main content. 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 design.
In this paper, the basic characteristics microstructure pocess 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.
Tribological tests are realized MMCs based on hypoeutectic Al-Si alloy: