Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting
In the current research study, AA6351 (Al-Si-Mg) is employed as matrix material and silicon nitride (Si3N4) particles as reinforcement material to manufacture the aluminum composites (AMCs). AA6351 matrix composites incorporated with several weight fractions of Si3N4 (0, 1, 2 and 3 wt.%) were synthe...
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doaj-7516c815dddf4fbdb4c663f1c7b8dc482021-01-02T05:11:56ZengElsevierJournal of Materials Research and Technology2238-78542020-11-01961466214672Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir castingV. Mohanavel0K.S. Ashraff Ali1S. Prasath2T. Sathish3M. Ravichandran4Department of Mechanical Engineering, Chennai Institute of Technology, Chennai, 600069 Tamil Nadu, India; Corresponding author.Department of Mechanical Engineering, C. Abdul Hakeem College of Engineering & Technology, Vellore, 632509 Tamil Nadu, IndiaDepartment of Mechanical Engineering, Suguna College of Engineering, Coimbatore, 641014 Tamil Nadu, IndiaDepartment of Mechanical Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105 Tamil Nadu, IndiaDepartment of Mechanical Engineering, K. Ramakrishan college of Engineering, Trichy- 621112, Tamil Nadu, IndiaIn the current research study, AA6351 (Al-Si-Mg) is employed as matrix material and silicon nitride (Si3N4) particles as reinforcement material to manufacture the aluminum composites (AMCs). AA6351 matrix composites incorporated with several weight fractions of Si3N4 (0, 1, 2 and 3 wt.%) were synthesized via stir casting technique. The obtained composites were characterized through a scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDS). EDS and XRD spectrums demonstrate the presence of Si3N4 reinforcement contents in the manufactured AMCs. The SEM analysis exhibits the even dissemination of Si3N4 particles in the Al alloy. The mechanical properties of the composites are examined by conducting several kinds of tests like compression test, impact test, tensile test and hardness test to understand the relationship between the weight percentages of reinforcement on the mechanical characteristics of the manufactured AMCs. The un-lubricant tribological characteristics of the proposed AMCs were assessed utilizing pin on disk tribometer. The hardness, compression and tensile strength of the AMCs were augmented concerning the mass proportion of reinforcement content. Finally, the wear test result reveals that the addition of nano-sized Si3N4 reinforcement contents up to a mass proportion of 3% downgrades the wear rate.http://www.sciencedirect.com/science/article/pii/S2238785420318548AA6351 alloyStir castingTensile fractureWearWorn surfaces |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
V. Mohanavel K.S. Ashraff Ali S. Prasath T. Sathish M. Ravichandran |
spellingShingle |
V. Mohanavel K.S. Ashraff Ali S. Prasath T. Sathish M. Ravichandran Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting Journal of Materials Research and Technology AA6351 alloy Stir casting Tensile fracture Wear Worn surfaces |
author_facet |
V. Mohanavel K.S. Ashraff Ali S. Prasath T. Sathish M. Ravichandran |
author_sort |
V. Mohanavel |
title |
Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting |
title_short |
Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting |
title_full |
Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting |
title_fullStr |
Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting |
title_full_unstemmed |
Microstructural and tribological characteristics of AA6351/Si3N4 composites manufactured by stir casting |
title_sort |
microstructural and tribological characteristics of aa6351/si3n4 composites manufactured by stir casting |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2020-11-01 |
description |
In the current research study, AA6351 (Al-Si-Mg) is employed as matrix material and silicon nitride (Si3N4) particles as reinforcement material to manufacture the aluminum composites (AMCs). AA6351 matrix composites incorporated with several weight fractions of Si3N4 (0, 1, 2 and 3 wt.%) were synthesized via stir casting technique. The obtained composites were characterized through a scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray analysis (EDS). EDS and XRD spectrums demonstrate the presence of Si3N4 reinforcement contents in the manufactured AMCs. The SEM analysis exhibits the even dissemination of Si3N4 particles in the Al alloy. The mechanical properties of the composites are examined by conducting several kinds of tests like compression test, impact test, tensile test and hardness test to understand the relationship between the weight percentages of reinforcement on the mechanical characteristics of the manufactured AMCs. The un-lubricant tribological characteristics of the proposed AMCs were assessed utilizing pin on disk tribometer. The hardness, compression and tensile strength of the AMCs were augmented concerning the mass proportion of reinforcement content. Finally, the wear test result reveals that the addition of nano-sized Si3N4 reinforcement contents up to a mass proportion of 3% downgrades the wear rate. |
topic |
AA6351 alloy Stir casting Tensile fracture Wear Worn surfaces |
url |
http://www.sciencedirect.com/science/article/pii/S2238785420318548 |
work_keys_str_mv |
AT vmohanavel microstructuralandtribologicalcharacteristicsofaa6351si3n4compositesmanufacturedbystircasting AT ksashraffali microstructuralandtribologicalcharacteristicsofaa6351si3n4compositesmanufacturedbystircasting AT sprasath microstructuralandtribologicalcharacteristicsofaa6351si3n4compositesmanufacturedbystircasting AT tsathish microstructuralandtribologicalcharacteristicsofaa6351si3n4compositesmanufacturedbystircasting AT mravichandran microstructuralandtribologicalcharacteristicsofaa6351si3n4compositesmanufacturedbystircasting |
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