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Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai

In the current investigation, AA7050-B4C composite developed through flux assisted (K2TiF6 flux) stir casting method. The FESEM microstructure studies confirm the uniform distribution of the reinforcements. The EDAX analysis confirms the formation of the intermetallic phase of TiB2 and Al3Ti acro...

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Main Authors: Kumar*,, Arvind, Rai, Ram Naresh
Format: Article
Language:English
Published: Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2020
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://ir.uitm.edu.my/id/eprint/36562/1/36562.pdf
http://ir.uitm.edu.my/id/eprint/36562/
https://jmeche.uitm.edu.my/
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spelling my.uitm.ir.365622020-11-10T04:28:50Z http://ir.uitm.edu.my/id/eprint/36562/ Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai Kumar*,, Arvind Rai, Ram Naresh TJ Mechanical engineering and machinery In the current investigation, AA7050-B4C composite developed through flux assisted (K2TiF6 flux) stir casting method. The FESEM microstructure studies confirm the uniform distribution of the reinforcements. The EDAX analysis confirms the formation of the intermetallic phase of TiB2 and Al3Ti across the interface of B4C particles and the aluminium matrix. The developed composite was heat treatment as per T-6 specifications, and a comparative study has been done on microstructures, mechanical properties and wear properties for ascast composite(ACC) and Heat-treated composite (HTC). The effect of heat treatment on the microstructure and bond mechanism shows that the B4C particles are fairly incorporated in the matrix. Ti decomposes and forms quaternary layers of B4C-TiB2-Al3Ti-Al across B4C particles. These layers not only prevent the decomposition of B4C particles into the matrix, also acts as the effective load transfer layers. Consequently, there is an enhancement in tensile strength by 16.4%, hardness by 15.9%, compressive strength by 14.8%, and impact strength by 10.9%. This may be due to the interface strengthening and precipitation hardening mechanism. There is a significant reduction in wear rate and coefficient of friction after heat treatment; this may be due to the improvement in hardness and compressive strength of the composite. Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM) 2020 Article PeerReviewed text en http://ir.uitm.edu.my/id/eprint/36562/1/36562.pdf Kumar*,, Arvind and Rai, Ram Naresh (2020) Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai. Journal of Mechanical Engineering (JMechE), 17 (2). pp. 129-139. ISSN 1823-5514 ; 2550-164X https://jmeche.uitm.edu.my/
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Kumar*,, Arvind
Rai, Ram Naresh
Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
description In the current investigation, AA7050-B4C composite developed through flux assisted (K2TiF6 flux) stir casting method. The FESEM microstructure studies confirm the uniform distribution of the reinforcements. The EDAX analysis confirms the formation of the intermetallic phase of TiB2 and Al3Ti across the interface of B4C particles and the aluminium matrix. The developed composite was heat treatment as per T-6 specifications, and a comparative study has been done on microstructures, mechanical properties and wear properties for ascast composite(ACC) and Heat-treated composite (HTC). The effect of heat treatment on the microstructure and bond mechanism shows that the B4C particles are fairly incorporated in the matrix. Ti decomposes and forms quaternary layers of B4C-TiB2-Al3Ti-Al across B4C particles. These layers not only prevent the decomposition of B4C particles into the matrix, also acts as the effective load transfer layers. Consequently, there is an enhancement in tensile strength by 16.4%, hardness by 15.9%, compressive strength by 14.8%, and impact strength by 10.9%. This may be due to the interface strengthening and precipitation hardening mechanism. There is a significant reduction in wear rate and coefficient of friction after heat treatment; this may be due to the improvement in hardness and compressive strength of the composite.
format Article
author Kumar*,, Arvind
Rai, Ram Naresh
author_facet Kumar*,, Arvind
Rai, Ram Naresh
author_sort Kumar*,, Arvind
title Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
title_short Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
title_full Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
title_fullStr Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
title_full_unstemmed Study on the development of a quaternary layer of B4C-TiB2-Al3Ti-Al in AA7050 / B4C Ex-Situ composite and influence of heat treatment on mechanical and wear properties / Arvind Kumar and Ram Naresh Rai
title_sort study on the development of a quaternary layer of b4c-tib2-al3ti-al in aa7050 / b4c ex-situ composite and influence of heat treatment on mechanical and wear properties / arvind kumar and ram naresh rai
publisher Faculty of Mechanical Engineering Universiti Teknologi MARA (UiTM)
publishDate 2020
url http://ir.uitm.edu.my/id/eprint/36562/1/36562.pdf
http://ir.uitm.edu.my/id/eprint/36562/
https://jmeche.uitm.edu.my/
_version_ 1685651421449420800
score 13.211869

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