Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite

Aluminum alloys with ceramic reinforced particulates are made prospective in aerospace, transportation, and industrial applications ampler to their low mass density, stiffness, and high specific strength. In this work, Aluminium Alloy(AA) 7010 - TiB2 (Titanium Diboride) composites with different amo...

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Main Authors: Mallireddy Naresh, Siva K.
Format: Article
Language:English
Published: De Gruyter 2020-04-01
Series:Science and Engineering of Composite Materials
Subjects:
Online Access:https://doi.org/10.1515/secm-2020-0010
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spelling doaj-1bcd41a7a764439faa12411c1b4d0b6c2021-09-05T14:00:33ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592020-04-012719710710.1515/secm-2020-0010secm-2020-0010Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix CompositeMallireddy Naresh0Siva K.1Department of Automobile Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamilnadu, 641032, IndiaDepartment of Mechanical Engineering, Hindusthan College of Engineering and Technology, Coimbatore, Tamilnadu, 641032, IndiaAluminum alloys with ceramic reinforced particulates are made prospective in aerospace, transportation, and industrial applications ampler to their low mass density, stiffness, and high specific strength. In this work, Aluminium Alloy(AA) 7010 - TiB2 (Titanium Diboride) composites with different amounts of reinforcement (5, 7.5 and 10 wt.%) were produced by the exothermic reaction of halide salts K2TiF6 and KBF4 added in 120% excess to the stoichiometric ratio with molten AA7010.The effect and dispersion of TiB2 particulates in AA7010 were analyzed by microstructural, mechanical and corrosion behavior. The dispersion of reinforcement in the matrix alloy was analyzed by optical microscope and field emission scanning electron microscope (FESEM) images. X-ray diffraction patterns of the prepared composites reveal the formation of TiB2 particles in the matrix alloy. Indeed samples are tested according to ASTM G34 standard for ex- foliation corrosion rate by weight loss method. The result shows improved hardness, tensile strength and yield strength of composites to about 35%, 260%, and 240% respectively. The mechanical and corrosion resistance of 10% TiB2 shows better results compared with matrix alloy and other concentrations of reinforcements.https://doi.org/10.1515/secm-2020-0010aa7010tib2stir-casting methodexfoliation corrosion test
collection DOAJ
language English
format Article
sources DOAJ
author Mallireddy Naresh
Siva K.
spellingShingle Mallireddy Naresh
Siva K.
Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
Science and Engineering of Composite Materials
aa7010
tib2
stir-casting method
exfoliation corrosion test
author_facet Mallireddy Naresh
Siva K.
author_sort Mallireddy Naresh
title Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
title_short Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
title_full Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
title_fullStr Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
title_full_unstemmed Investigation of Microstructural, Mechanical and Corrosion Properties of AA7010-TiB2 in-situ Metal Matrix Composite
title_sort investigation of microstructural, mechanical and corrosion properties of aa7010-tib2 in-situ metal matrix composite
publisher De Gruyter
series Science and Engineering of Composite Materials
issn 0792-1233
2191-0359
publishDate 2020-04-01
description Aluminum alloys with ceramic reinforced particulates are made prospective in aerospace, transportation, and industrial applications ampler to their low mass density, stiffness, and high specific strength. In this work, Aluminium Alloy(AA) 7010 - TiB2 (Titanium Diboride) composites with different amounts of reinforcement (5, 7.5 and 10 wt.%) were produced by the exothermic reaction of halide salts K2TiF6 and KBF4 added in 120% excess to the stoichiometric ratio with molten AA7010.The effect and dispersion of TiB2 particulates in AA7010 were analyzed by microstructural, mechanical and corrosion behavior. The dispersion of reinforcement in the matrix alloy was analyzed by optical microscope and field emission scanning electron microscope (FESEM) images. X-ray diffraction patterns of the prepared composites reveal the formation of TiB2 particles in the matrix alloy. Indeed samples are tested according to ASTM G34 standard for ex- foliation corrosion rate by weight loss method. The result shows improved hardness, tensile strength and yield strength of composites to about 35%, 260%, and 240% respectively. The mechanical and corrosion resistance of 10% TiB2 shows better results compared with matrix alloy and other concentrations of reinforcements.
topic aa7010
tib2
stir-casting method
exfoliation corrosion test
url https://doi.org/10.1515/secm-2020-0010
work_keys_str_mv AT mallireddynaresh investigationofmicrostructuralmechanicalandcorrosionpropertiesofaa7010tib2insitumetalmatrixcomposite
AT sivak investigationofmicrostructuralmechanicalandcorrosionpropertiesofaa7010tib2insitumetalmatrixcomposite
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