Pengaruh vf sic terhadap sifat mekanik komposit aluminium a6061 sic melalui metode stir casting = Influence vf to mechanical properties of sic composite aluminium a6061 sic through stir casting method
| Main Author: | Fakhri Alvianto, author |
|---|---|
| Format: | Bachelors |
| Terbitan: |
Fakultas Teknik Universitas Indonesia
, 2016
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| Subjects: | |
| Online Access: |
http://lib.ui.ac.id/file?file=digital/2016-5/20421759-S62695-Fakhri Alvianto.pdf |
Daftar Isi:
- [<b>ABSTRAK</b><br> Komposit Al A6061/SiC dibuat melalui metode stir casting. Metode ini dipilih karena biaya yang tidak terlalu mahal dan dapat mendistribusikan penguat SiC secara merata. Pada penelitian ini, dilakukan variasi penambahan %Vf SiC , yakni sebesar 2%, 5%, 8%, 10%, dan 15%. Lalu untuk meningkatkan kemampubasahan antara SiC dan matriks Al diatmbahkan Mg sebesar 10%. Hasil dari penelitian ini didapatkan sifat mekanis optimum didapatkan pada penambahan 10% SiC, dimana kekuatan tarik mencapai 247,8 Mpa dan elongasi 7,04846 % dan kekerasan sebesar 54,333 HRB. Sifat mekanis ini berada diatas Al A6061 as cast. Sehingga dapat disimpulkan penambahan SiC akan meningkatkan sifat mekanis dari material, meskipun jika melewati titik optimum, partikel SiC akan ber aglomerasi dan menurunkan sifat mekanis dari Al A6061/SiC. <b>ABSTRACT</b><br> Composite Al A6061 / SiC can be made through methods Stir Casting, this method has been used widely because has middle cost and able to distribute the SiC particle well. This research use variation of SiC, from 2%, 5%, 8%, 10%, and 15%. To enhance the wettability between particle and matrix, Mg 10% was added to the molten aluminium. The result showed that the addition of 10% SiC is optimum among others, with tensile strength reach 247,8 Mpa, elongation 7,04846 % and hardness 54,333 HRB. This mechanical properties is better than the Al A6061 as cast. From datas above, it can be concluded that the more SiC being added, will improve the mechanical properties of material. However, if SiC pass the optimum value, the SiC tend to agglomerated and will deterioriate the mechanical properties of Al A6061/SiC. ;Composite Al A6061 / SiC can be made through methods Stir Casting, this method has been used widely because has middle cost and able to distribute the SiC particle well. This research use variation of SiC, from 2%, 5%, 8%, 10%, and 15%. To enhance the wettability between particle and matrix, Mg 10% was added to the molten aluminium. The result showed that the addition of 10% SiC is optimum among others, with tensile strength reach 247,8 Mpa, elongation 7,04846 % and hardness 54,333 HRB. This mechanical properties is better than the Al A6061 as cast. From datas above, it can be concluded that the more SiC being added, will improve the mechanical properties of material. However, if SiC pass the optimum value, the SiC tend to agglomerated and will deterioriate the mechanical properties of Al A6061/SiC. , Composite Al A6061 / SiC can be made through methods Stir Casting, this method has been used widely because has middle cost and able to distribute the SiC particle well. This research use variation of SiC, from 2%, 5%, 8%, 10%, and 15%. To enhance the wettability between particle and matrix, Mg 10% was added to the molten aluminium. The result showed that the addition of 10% SiC is optimum among others, with tensile strength reach 247,8 Mpa, elongation 7,04846 % and hardness 54,333 HRB. This mechanical properties is better than the Al A6061 as cast. From datas above, it can be concluded that the more SiC being added, will improve the mechanical properties of material. However, if SiC pass the optimum value, the SiC tend to agglomerated and will deterioriate the mechanical properties of Al A6061/SiC. ]