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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A side by side investigation of the microstructure and hardness of the composite and the base alloy cast into a steel mould was done. This paper presents a short summary of the researches conducted in past few years concerning the MMCs with A Al-Si alloy matrix compocashing different second compocastiny.
Application of the compocasting process led to a transformation of a dendritic to a nondendritic structure of the base alloy.
In the first group are the results that Corrosion processes have occurred in the composite matrix. Log In Sign Up.
Microstructural examinations were performed after day exposure of thermally treated composites in the sodium-chloride solution. The main parameter analyzed in the paper is coefficient of friction obtained in the conditions with and without lubrication.
The goal of the paper was to optimize the influencing parameters in order to minimize specific wear rate using the Taguchi method. The analysis has shown the presence of MML, which means that there was transfer of material from steel disc to composite block.
In the paper were shown the test results of tribological characteristics of hybrid composites with alloy base A reinforced by SiC and graphite. 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.
Specific wear rate prediction was done using artificial neural network ANN. One of the possible solutions for overcoming of poor Al-alloys tribological properties is using of different types of metal matrix composites MMCs. MMCs based on hypoeutectic Al-Si alloy: Ads help cover our server costs. Corrosion did not affect SiC particles in the composites. A regression analysis and experiment corroboration was conducted in order to verify the results of the optimization.
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.
The composites were produced by compo casting technique and then subjected to the thermal treatment T4 regime. Composite are obtained using the compocasting procedure.
Tribological tests are realized Hybrid composite specimen is obtained by compocasting procedure. These samples were additionally pressed in a special tooling by which tensile test samples were obtained.
The mechanical properties of the composite are improved in relation to the base alloy. Click here to sign up. 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 Al2O3 particles as reinforcement were added into the semi-solid A alloy by infiltration and admixing.
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. Composite materials were produced by the compocasting process using mechanical mixing of the matrix, i.
Help Center Find new research papers in: Using of Al-alloys for producing of engine cylinders and blocks, instead of cimpocasting cast iron, results with weight savings and lower fuel consumption and therefore reduced pollution. Sliding distance of m was constant. Enter the email address you signed up with and we’ll email you a reset link.
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 It was found that corrosion resistance of the composites decreased with increase in content of SiC particles. Tribological behavior of aluminum hybrid composites studied by application of factorial techniques.
One of the possible solutions for overcoming of poor 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. The tests were done for different normal load orocess, sliding speeds, sliding distance, with and without lubrication.
Compocasting Research Papers –
The effects of load, sliding speed, weight percentage proces graphite reinforcement, and sliding distance on the wear rate are Tribological tests were performed on a block-on-disc tribometer without lubrication. Skip to main content. Tribological properties in dry sliding conditions.