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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Main Authors: V. Mohanavel, K.S. Ashraff Ali, S. Prasath, T. Sathish, M. Ravichandran
Format: Article
Language:English
Published: Elsevier 2020-11-01
Series:Journal of Materials Research and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2238785420318548
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spelling 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
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