Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles

The paper details the studies carried out on a dual-size particulate composite prepared by stir casting using A 356 aluminum alloy and B4C powders. Three composite compositions, viz., A356 plus 2% B4C (44µm size and 105µm size in 1:1 ratio), 4% B4C (3:1 ratio), and 6% B4C (1:3 ratio) were cast in f...

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Autores principales:	J. R. Chandrashekar, M. H. Annaiah, R. Chandrashekar
Formato:	article
Lenguaje:	EN
Publicado:	Gruppo Italiano Frattura 2021
Materias:	A 356 Aluminum Alloy Dual-size composites Microstructure Mechanical tests Fractrography analysis Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
Acceso en línea:	https://doaj.org/article/a2963634acdd4ea8b971f4817425ddec
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spelling	oai:doaj.org-article:a2963634acdd4ea8b971f4817425ddec2021-11-26T10:56:00ZMicrostructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles1971-8993https://doaj.org/article/a2963634acdd4ea8b971f4817425ddec2021-06-01T00:00:00Zhttps://www.fracturae.com/index.php/fis/article/view/3103https://doaj.org/toc/1971-8993 The paper details the studies carried out on a dual-size particulate composite prepared by stir casting using A 356 aluminum alloy and B4C powders. Three composite compositions, viz., A356 plus 2% B4C (44µm size and 105µm size in 1:1 ratio), 4% B4C (3:1 ratio), and 6% B4C (1:3 ratio) were cast in finger molds, from which test specimens were prepared for hardness and tensile tests as well as for metallography. Vickers hardness tests, tensile tests and microstructure analysis using an optical microscope were conducted. The results obtained indicated that the B4C particles were evenly distributed in the alloy matrix. EDS also revealed the presence of B4C in all the three composites. In general, the hardness and tensile strengths increased with increase in concentration B4C powders. While the increase in hardness was increases less than 15%, there was significant increase (more than 35 %) in tensile strength. However, the ductility represented by % elongation, which was already very low in A 356 cast alloy (24.2%,), further decreased in composites. Tensile fractography results shows inter crystalline fracture where the breakage in the B4C particle instead of deboning were observed. J. R. ChandrashekarM. H. AnnaiahR. ChandrashekarGruppo Italiano FratturaarticleA 356 Aluminum AlloyDual-size compositesMicrostructureMechanical testsFractrography analysisMechanical engineering and machineryTJ1-1570Structural engineering (General)TA630-695ENFrattura ed Integrità Strutturale, Vol 15, Iss 57 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	A 356 Aluminum Alloy Dual-size composites Microstructure Mechanical tests Fractrography analysis Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695
spellingShingle	A 356 Aluminum Alloy Dual-size composites Microstructure Mechanical tests Fractrography analysis Mechanical engineering and machinery TJ1-1570 Structural engineering (General) TA630-695 J. R. Chandrashekar M. H. Annaiah R. Chandrashekar Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
description	The paper details the studies carried out on a dual-size particulate composite prepared by stir casting using A 356 aluminum alloy and B4C powders. Three composite compositions, viz., A356 plus 2% B4C (44µm size and 105µm size in 1:1 ratio), 4% B4C (3:1 ratio), and 6% B4C (1:3 ratio) were cast in finger molds, from which test specimens were prepared for hardness and tensile tests as well as for metallography. Vickers hardness tests, tensile tests and microstructure analysis using an optical microscope were conducted. The results obtained indicated that the B4C particles were evenly distributed in the alloy matrix. EDS also revealed the presence of B4C in all the three composites. In general, the hardness and tensile strengths increased with increase in concentration B4C powders. While the increase in hardness was increases less than 15%, there was significant increase (more than 35 %) in tensile strength. However, the ductility represented by % elongation, which was already very low in A 356 cast alloy (24.2%,), further decreased in composites. Tensile fractography results shows inter crystalline fracture where the breakage in the B4C particle instead of deboning were observed.
format	article
author	J. R. Chandrashekar M. H. Annaiah R. Chandrashekar
author_facet	J. R. Chandrashekar M. H. Annaiah R. Chandrashekar
author_sort	J. R. Chandrashekar
title	Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
title_short	Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
title_full	Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
title_fullStr	Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
title_full_unstemmed	Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles
title_sort	microstructure and mechanical properties of aluminum cast alloy a356 reinforced with dual-size b4c particles
publisher	Gruppo Italiano Frattura
publishDate	2021
url	https://doaj.org/article/a2963634acdd4ea8b971f4817425ddec
work_keys_str_mv	AT jrchandrashekar microstructureandmechanicalpropertiesofaluminumcastalloya356reinforcedwithdualsizeb4cparticles AT mhannaiah microstructureandmechanicalpropertiesofaluminumcastalloya356reinforcedwithdualsizeb4cparticles AT rchandrashekar microstructureandmechanicalpropertiesofaluminumcastalloya356reinforcedwithdualsizeb4cparticles
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Microstructure and Mechanical Properties of Aluminum Cast Alloy A356 reinforced with Dual-Size B4C Particles

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