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Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock

This paper highlights the effects of pouring temperature and holding time on the mechanical properties of aluminium 6061 semisolid feedstock billets. The semisolid metal feedstock billets were prepared by a direct thermal method (DTM), which the molten metal was poured into a cylindrical copper moul...

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Main Authors: M. F. M., Tajudin, Asnul Hadi, Ahmad, Mohd Rashidi, Maarof
Format: Conference or Workshop Item
Published: 2021
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/30760/
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spelling my.ump.umpir.307602021-04-15T03:01:04Z http://umpir.ump.edu.my/id/eprint/30760/ Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock M. F. M., Tajudin Asnul Hadi, Ahmad Mohd Rashidi, Maarof TJ Mechanical engineering and machinery This paper highlights the effects of pouring temperature and holding time on the mechanical properties of aluminium 6061 semisolid feedstock billets. The semisolid metal feedstock billets were prepared by a direct thermal method (DTM), which the molten metal was poured into a cylindrical copper mould with a different combination of pouring temperature and holding time before it was solidified in room temperature water. The results show that the sample with pouring temperature slightly above aluminium 6061 liquidus temperature has the lowest porosity, thereby the highest mechanical properties value. The sample with a pouring temperature of 660 °C and holding time of 60 s has the density, tensile strength and hardness value of 2.701 g/cm3, 146.797 MPa, and 86.5 HV respectively. Meanwhile, the sample with a pouring temperature of 640 °C and holding time of 20 s has density, tensile strength and hardness value of 2.527 g/cm3, 65.39 MPa, and 71.79 HV respectively. The density and fractography tests were conducted to confirm the existence of porosity within the samples. The results from this experimental works suggested that the mechanical properties of DTM semisolid feedstock billet merely depended on processing parameters, which influenced the porosity level within the feedstock billet, thus directly affected their mechanical properties. 2021 Conference or Workshop Item PeerReviewed M. F. M., Tajudin and Asnul Hadi, Ahmad and Mohd Rashidi, Maarof (2021) Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock. In: International Conference on Innovative Technology, Engineering and Sciences (ICTES 2020), 22 December 2020 , Virtual mode, Universiti Malaysia Pahang, Malaysia. pp. 1-10..
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
M. F. M., Tajudin
Asnul Hadi, Ahmad
Mohd Rashidi, Maarof
Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
description This paper highlights the effects of pouring temperature and holding time on the mechanical properties of aluminium 6061 semisolid feedstock billets. The semisolid metal feedstock billets were prepared by a direct thermal method (DTM), which the molten metal was poured into a cylindrical copper mould with a different combination of pouring temperature and holding time before it was solidified in room temperature water. The results show that the sample with pouring temperature slightly above aluminium 6061 liquidus temperature has the lowest porosity, thereby the highest mechanical properties value. The sample with a pouring temperature of 660 °C and holding time of 60 s has the density, tensile strength and hardness value of 2.701 g/cm3, 146.797 MPa, and 86.5 HV respectively. Meanwhile, the sample with a pouring temperature of 640 °C and holding time of 20 s has density, tensile strength and hardness value of 2.527 g/cm3, 65.39 MPa, and 71.79 HV respectively. The density and fractography tests were conducted to confirm the existence of porosity within the samples. The results from this experimental works suggested that the mechanical properties of DTM semisolid feedstock billet merely depended on processing parameters, which influenced the porosity level within the feedstock billet, thus directly affected their mechanical properties.
format Conference or Workshop Item
author M. F. M., Tajudin
Asnul Hadi, Ahmad
Mohd Rashidi, Maarof
author_facet M. F. M., Tajudin
Asnul Hadi, Ahmad
Mohd Rashidi, Maarof
author_sort M. F. M., Tajudin
title Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
title_short Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
title_full Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
title_fullStr Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
title_full_unstemmed Effects of direct thermal method processing parameters on mechanical properties semisolid A6061 feedstock
title_sort effects of direct thermal method processing parameters on mechanical properties semisolid a6061 feedstock
publishDate 2021
url http://umpir.ump.edu.my/id/eprint/30760/
_version_ 1698697125270913024
score 13.211869

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