Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites
Effects of discontinuous ultrasonic treatment on the microstructure, nanoparticle distribution, and mechanical properties of cast Al413-SiCnp nanocomposites were studied. The results showed that discontinuous ultrasonic treatment was more effective in improving the mechanical properties of the cast...
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Isfahan University of Technology
2015-05-01
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doaj-8256eff587bd400882da2db4e11529de2021-03-08T10:06:51ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering2251-600X2423-57332015-05-0134187103Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp NanocompositesM.R. Dehnavi0B. Niroumand1F. Ashrafizadeh2 Effects of discontinuous ultrasonic treatment on the microstructure, nanoparticle distribution, and mechanical properties of cast Al413-SiCnp nanocomposites were studied. The results showed that discontinuous ultrasonic treatment was more effective in improving the mechanical properties of the cast nanocomposites than the equally timed continuous treatment. The yield and ultimate tensile strengths of Al413-2%SiCnp nanocomposites discontinuously treated for two 20 minute periods increased by about 126% and 100% compared to those of the monolithic sample, respectively. These improvements were about 107% and 94% for the nanocomposites continuously treated for a single 40 minute period. The improvement in the mechanical properties was associated with severe refinement of the microstructure, removal of the remaining gas layers on the particles surfaces, more effective fragmentation of the remaining agglomerates as well as improved wettability and distribution of the reinforcing particles during the first stage of solidification.http://jame.iut.ac.ir/article-1-644-en.htmlcast nanocompositeal413-sicnpdiscontinuous ultrasonic treatmentdistribution of reinforcing particlesmechanical propertiesmicrostructure |
collection |
DOAJ |
language |
fas |
format |
Article |
sources |
DOAJ |
author |
M.R. Dehnavi B. Niroumand F. Ashrafizadeh |
spellingShingle |
M.R. Dehnavi B. Niroumand F. Ashrafizadeh Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites Journal of Advanced Materials in Engineering cast nanocomposite al413-sicnp discontinuous ultrasonic treatment distribution of reinforcing particles mechanical properties microstructure |
author_facet |
M.R. Dehnavi B. Niroumand F. Ashrafizadeh |
author_sort |
M.R. Dehnavi |
title |
Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites |
title_short |
Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites |
title_full |
Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites |
title_fullStr |
Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites |
title_full_unstemmed |
Effect of Discontinuous Ultrasonic Treatment on Mechanical Properties and Microstructure of Cast Al413-SiCnp Nanocomposites |
title_sort |
effect of discontinuous ultrasonic treatment on mechanical properties and microstructure of cast al413-sicnp nanocomposites |
publisher |
Isfahan University of Technology |
series |
Journal of Advanced Materials in Engineering |
issn |
2251-600X 2423-5733 |
publishDate |
2015-05-01 |
description |
Effects of discontinuous ultrasonic treatment on the microstructure, nanoparticle distribution, and mechanical properties of cast Al413-SiCnp nanocomposites were studied. The results showed that discontinuous ultrasonic treatment was more effective in improving the mechanical properties of the cast nanocomposites than the equally timed continuous treatment. The yield and ultimate tensile strengths of Al413-2%SiCnp nanocomposites discontinuously treated for two 20 minute periods increased by about 126% and 100% compared to those of the monolithic sample, respectively. These improvements were about 107% and 94% for the nanocomposites continuously treated for a single 40 minute period. The improvement in the mechanical properties was associated with severe refinement of the microstructure, removal of the remaining gas layers on the particles surfaces, more effective fragmentation of the remaining agglomerates as well as improved wettability and distribution of the reinforcing particles during the first stage of solidification. |
topic |
cast nanocomposite al413-sicnp discontinuous ultrasonic treatment distribution of reinforcing particles mechanical properties microstructure |
url |
http://jame.iut.ac.ir/article-1-644-en.html |
work_keys_str_mv |
AT mrdehnavi effectofdiscontinuousultrasonictreatmentonmechanicalpropertiesandmicrostructureofcastal413sicnpnanocomposites AT bniroumand effectofdiscontinuousultrasonictreatmentonmechanicalpropertiesandmicrostructureofcastal413sicnpnanocomposites AT fashrafizadeh effectofdiscontinuousultrasonictreatmentonmechanicalpropertiesandmicrostructureofcastal413sicnpnanocomposites |
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1724228891411742720 |