Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method
Direct thermal method is one of the semi-solid metal processing technique to produce a globular microstructure feedstock billet for thixoforming. In this experimental work, the molten Aluminium 6061 with a temperature of 660 °C and 680 °C was poured into a thin cylindrical copper mould. The molten A...
| Main Authors: | , , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
Universiti Malaysia Pahang
2022
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/36822/1/Microstructure%20characteristic%20of%20aluminium%206061%20semi-solid%20feedstock%20billet%20produced%20with%20direct%20thermal%20method.pdf |
| _version_ | 1825814819505176576 |
|---|---|
| author | Muhammad Faez Mohamad, Tajudin Asnul Hadi, Ahmad Juliawati, Alias Nur Azhani, Abd Razak Nasrul Azuan, Alang |
| author_facet | Muhammad Faez Mohamad, Tajudin Asnul Hadi, Ahmad Juliawati, Alias Nur Azhani, Abd Razak Nasrul Azuan, Alang |
| author_sort | Muhammad Faez Mohamad, Tajudin |
| collection | UMP |
| description | Direct thermal method is one of the semi-solid metal processing technique to produce a globular microstructure feedstock billet for thixoforming. In this experimental work, the molten Aluminium 6061 with a temperature of 660 °C and 680 °C was poured into a thin cylindrical copper mould. The molten Aluminium 6061 was held within the copper mould with a different holding times of 20 s, 40 s and 60 s. The copper mould was quenched into room temperature water after achieving the specified holding duration. After the feedstock billets were removed from the mould, the microstructure formation of the feedstock billets was characterized. It was found that sample 1 which was combination of pouring temperature of 660 °C and holding time of 20 s has the lowest grain size at 2507.87 μm2. The circularity, aspect ratio and ferret diameter was found at 0.75, 1.34 and 69.4 μm, respectively. It was apparent that sample 1 produced finer and globular microstructure. The rapid cooling condition of the molten metal within the copper mould resulted in more globular grain structure. Based on the result, it can be concluded that the microstructure were merely depended on the heat convection between molten alloy and the copper mould. The rapid cooling condition produced smaller and more globular microstructure feestock billet that suitable for thixoforming |
| first_indexed | 2024-03-06T13:04:13Z |
| format | Conference or Workshop Item |
| id | UMPir36822 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T13:04:13Z |
| publishDate | 2022 |
| publisher | Universiti Malaysia Pahang |
| record_format | dspace |
| spelling | UMPir368222023-01-30T08:14:06Z http://umpir.ump.edu.my/id/eprint/36822/ Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method Muhammad Faez Mohamad, Tajudin Asnul Hadi, Ahmad Juliawati, Alias Nur Azhani, Abd Razak Nasrul Azuan, Alang T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Direct thermal method is one of the semi-solid metal processing technique to produce a globular microstructure feedstock billet for thixoforming. In this experimental work, the molten Aluminium 6061 with a temperature of 660 °C and 680 °C was poured into a thin cylindrical copper mould. The molten Aluminium 6061 was held within the copper mould with a different holding times of 20 s, 40 s and 60 s. The copper mould was quenched into room temperature water after achieving the specified holding duration. After the feedstock billets were removed from the mould, the microstructure formation of the feedstock billets was characterized. It was found that sample 1 which was combination of pouring temperature of 660 °C and holding time of 20 s has the lowest grain size at 2507.87 μm2. The circularity, aspect ratio and ferret diameter was found at 0.75, 1.34 and 69.4 μm, respectively. It was apparent that sample 1 produced finer and globular microstructure. The rapid cooling condition of the molten metal within the copper mould resulted in more globular grain structure. Based on the result, it can be concluded that the microstructure were merely depended on the heat convection between molten alloy and the copper mould. The rapid cooling condition produced smaller and more globular microstructure feestock billet that suitable for thixoforming Universiti Malaysia Pahang 2022-11-15 Conference or Workshop Item PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/36822/1/Microstructure%20characteristic%20of%20aluminium%206061%20semi-solid%20feedstock%20billet%20produced%20with%20direct%20thermal%20method.pdf Muhammad Faez Mohamad, Tajudin and Asnul Hadi, Ahmad and Juliawati, Alias and Nur Azhani, Abd Razak and Nasrul Azuan, Alang (2022) Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method. In: The 6th National Conference for Postgraduate Research (NCON-PGR 2022) , 15 November 2022 , Virtual Conference, Universiti Malaysia Pahang, Malaysia. p. 76.. (Published) https://ncon-pgr.ump.edu.my/index.php/en/?option=com_fileman&view=file&routed=1&name=E-BOOK%20NCON%202022%20.pdf&folder=E-BOOK%20NCON%202022&container=fileman-files |
| spellingShingle | T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Muhammad Faez Mohamad, Tajudin Asnul Hadi, Ahmad Juliawati, Alias Nur Azhani, Abd Razak Nasrul Azuan, Alang Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title | Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title_full | Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title_fullStr | Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title_full_unstemmed | Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title_short | Microstructure characteristic of aluminium 6061 semi-solid feedstock billet produced with direct thermal method |
| title_sort | microstructure characteristic of aluminium 6061 semi solid feedstock billet produced with direct thermal method |
| topic | T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://umpir.ump.edu.my/id/eprint/36822/1/Microstructure%20characteristic%20of%20aluminium%206061%20semi-solid%20feedstock%20billet%20produced%20with%20direct%20thermal%20method.pdf |
| work_keys_str_mv | AT muhammadfaezmohamadtajudin microstructurecharacteristicofaluminium6061semisolidfeedstockbilletproducedwithdirectthermalmethod AT asnulhadiahmad microstructurecharacteristicofaluminium6061semisolidfeedstockbilletproducedwithdirectthermalmethod AT juliawatialias microstructurecharacteristicofaluminium6061semisolidfeedstockbilletproducedwithdirectthermalmethod AT nurazhaniabdrazak microstructurecharacteristicofaluminium6061semisolidfeedstockbilletproducedwithdirectthermalmethod AT nasrulazuanalang microstructurecharacteristicofaluminium6061semisolidfeedstockbilletproducedwithdirectthermalmethod |