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Effects of direct thermal method processing parameters on mechanical properties of 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), in which the molten metal was poured into a cylindrical copper m...

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Main Authors: M. F. M., Tajudin, Asnul Hadi, Ahmad, Mohd Rashidi, Maarof
Format: Article
Language:English
Published: Universiti Malaysia Pahang 2021
Subjects:
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://umpir.ump.edu.my/id/eprint/31421/1/Effects%20of%20direct%20thermal%20method%20processing%20parameters%20on%20mechanical.pdf
http://umpir.ump.edu.my/id/eprint/31421/
https://doi.org/10.15282/ijame.18.1.2021.17.0652
https://doi.org/10.15282/ijame.18.1.2021.17.0652
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spelling my.ump.umpir.314212021-05-21T07:23:53Z http://umpir.ump.edu.my/id/eprint/31421/ Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock M. F. M., Tajudin Asnul Hadi, Ahmad Mohd Rashidi, Maarof TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics 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), in 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 properties of 2.701 g/cm3, 146.797 MPa, and 86.5 HV, respectively. Meanwhile, the sample at a pouring temperature of 640 °C and holding time of 20 s has density, tensile strength and hardness properties 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 these 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. Universiti Malaysia Pahang 2021-03-30 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/31421/1/Effects%20of%20direct%20thermal%20method%20processing%20parameters%20on%20mechanical.pdf M. F. M., Tajudin and Asnul Hadi, Ahmad and Mohd Rashidi, Maarof (2021) Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock. International Journal of Automotive and Mechanical Engineering (IJAME), 18 (1). 8585 -8591. ISSN 2229-8649 (Print); 2180-1606 (Online) https://doi.org/10.15282/ijame.18.1.2021.17.0652 https://doi.org/10.15282/ijame.18.1.2021.17.0652
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/
language English
topic TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
spellingShingle TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
M. F. M., Tajudin
Asnul Hadi, Ahmad
Mohd Rashidi, Maarof
Effects of direct thermal method processing parameters on mechanical properties of 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), in 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 properties of 2.701 g/cm3, 146.797 MPa, and 86.5 HV, respectively. Meanwhile, the sample at a pouring temperature of 640 °C and holding time of 20 s has density, tensile strength and hardness properties 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 these 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 Article
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 of semisolid A6061 feedstock
title_short Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock
title_full Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock
title_fullStr Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock
title_full_unstemmed Effects of direct thermal method processing parameters on mechanical properties of semisolid A6061 feedstock
title_sort effects of direct thermal method processing parameters on mechanical properties of semisolid a6061 feedstock
publisher Universiti Malaysia Pahang
publishDate 2021
url http://umpir.ump.edu.my/id/eprint/31421/1/Effects%20of%20direct%20thermal%20method%20processing%20parameters%20on%20mechanical.pdf
http://umpir.ump.edu.my/id/eprint/31421/
https://doi.org/10.15282/ijame.18.1.2021.17.0652
https://doi.org/10.15282/ijame.18.1.2021.17.0652
_version_ 1701163151956901888
score 13.211869

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