Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method

In solid state recycling processes, there are two methods in recycling aluminium which are conventional and direct conversion methods. Direct conversion method is a current approach that excludes the metal chips re-melting process compared to the conventional recycling method. Direct conversion in a...

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Main Author: Kuddus, Suriyanti
Format: Thesis
Language:English
English
English
Published: 2020
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spelling my-uthm-ep.3962021-07-25T02:18:26Z Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method 2020-01 Kuddus, Suriyanti QC501-766 Electricity and magnetism In solid state recycling processes, there are two methods in recycling aluminium which are conventional and direct conversion methods. Direct conversion method is a current approach that excludes the metal chips re-melting process compared to the conventional recycling method. Direct conversion in a hot extrusion process that contributes to the green technology production in reducing energy consumption, operating costs and parts. This research aims to investigate the effect of silicon carbide (SiC) on mechanical and properties of recycled aluminium AA6061 produced by hot extrusion method. This study employed full factorial 23 design experiments that should satisfy the two operating temperature (T) of 450°C and 550°C, with two preheating time (t) of 1 hour and 3 hour reinforced with two volume fraction of silicon carbide (SiC) of 5 wt.% and 15 wt.%. Response Surface Methodology (RSM) utilized the factor towards the response which is Ultimate Tensile Strength (UTS), Elongation to Failure (ETF) and Microhardness (MH). The best parameter setting for the extrusion was found to be at T=550°C, t=1 hour and SiC=5 wt.%. This parameter resulted in UTS=18022 MPa, ETF=18.07%, MH=71.52Hv, and Density=2.73 g/cm3. Based on RSM, with desirability of 87.67%, the optimum parameter T=550°C, t=2 hour and SiC=5 wt.% were suggested an optimized composite performance. The mechanical properties were analyzed by tensile and microhardness testing. While that, the physical property analysis was focusing on density and microstructure analysis. In conclusion, hot extrusion process was proven as an alternative method in direct recycling of aluminium chips. 2020-01 Thesis http://eprints.uthm.edu.my/396/ http://eprints.uthm.edu.my/396/2/24p%20SURIYANTI%20KUDDUS.pdf text en public http://eprints.uthm.edu.my/396/1/SURIYANTI%20KUDDUS%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/396/3/SURIYANTI%20KUDDUS%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
English
English
topic QC501-766 Electricity and magnetism
spellingShingle QC501-766 Electricity and magnetism
Kuddus, Suriyanti
Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
description In solid state recycling processes, there are two methods in recycling aluminium which are conventional and direct conversion methods. Direct conversion method is a current approach that excludes the metal chips re-melting process compared to the conventional recycling method. Direct conversion in a hot extrusion process that contributes to the green technology production in reducing energy consumption, operating costs and parts. This research aims to investigate the effect of silicon carbide (SiC) on mechanical and properties of recycled aluminium AA6061 produced by hot extrusion method. This study employed full factorial 23 design experiments that should satisfy the two operating temperature (T) of 450°C and 550°C, with two preheating time (t) of 1 hour and 3 hour reinforced with two volume fraction of silicon carbide (SiC) of 5 wt.% and 15 wt.%. Response Surface Methodology (RSM) utilized the factor towards the response which is Ultimate Tensile Strength (UTS), Elongation to Failure (ETF) and Microhardness (MH). The best parameter setting for the extrusion was found to be at T=550°C, t=1 hour and SiC=5 wt.%. This parameter resulted in UTS=18022 MPa, ETF=18.07%, MH=71.52Hv, and Density=2.73 g/cm3. Based on RSM, with desirability of 87.67%, the optimum parameter T=550°C, t=2 hour and SiC=5 wt.% were suggested an optimized composite performance. The mechanical properties were analyzed by tensile and microhardness testing. While that, the physical property analysis was focusing on density and microstructure analysis. In conclusion, hot extrusion process was proven as an alternative method in direct recycling of aluminium chips.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Kuddus, Suriyanti
author_facet Kuddus, Suriyanti
author_sort Kuddus, Suriyanti
title Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
title_short Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
title_full Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
title_fullStr Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
title_full_unstemmed Effect of silicon carbide (SiC) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
title_sort effect of silicon carbide (sic) on mechanical and physical properties of solid state recycled aluminium aa6061 by using hot extrusion method
granting_institution Universiti Tun Hussein Onn Malaysia
granting_department Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate 2020
url http://eprints.uthm.edu.my/396/2/24p%20SURIYANTI%20KUDDUS.pdf
http://eprints.uthm.edu.my/396/1/SURIYANTI%20KUDDUS%20COPYRIGHT%20DECLARATION.pdf
http://eprints.uthm.edu.my/396/3/SURIYANTI%20KUDDUS%20WATERMARK.pdf
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