FARIZKHAN SAHIB, MUHAMAD (2023) ANALISIS PENGARUH MULTI AXIAL FORGING (MAF) TERHADAP SIFAT MEKANIS DAN STRUKTUR MIKRO PADA ALUMINIUM MATRIX COMPOSITE. S1 thesis, UNIVERSITAS SULTAN AGENG TIRTAYAS.
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Abstract
Composite materials are replacing the use of steel as a bullet-resistant material. One of them is the aluminum matrix composite which has high hardness, is lighter, the material is readily available, and the cost is quite affordable. This research is one of its developments, which uses aluminum matrix composite, a mixture of aluminum 6061, 7% silicon, 5% silicon carbide, 1% magnesium and ss201 wire arrangement. The aluminum matrix composite material is then pre-heated to a temperature of 350℃ and given a multi-axial forging treatment to refine the grain structure to improve its mechanical properties. Based on the results of the characterization of the effect of multi-axial forging on the aluminum matrix composite, the hardness value increased from 51.33 HRB to 71.33 HRB. The toughness increases when the aluminum matrix composite with MAF can absorb an energy of 15 Joules. The hole diameter from the ballistic test results on the AMC with MAF also looks smaller, 11 mm for the front and 14 mm for the rear. Meanwhile, the condition of the grain structure of AMC with MAF is denser than without MAF, causing an evenly distributed grain structure. This condition can cause uniformity of hardness to be more evenly distributed.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Penggunaan baja sebagai material tahan peluru mulai digantikan dengan material komposit. Salah satunya komposit matriks aluminium yang mana memilliki sifat kekerasan yang tinggi, lebih ringan, bahannya mudah didapat dan biaya yang cukup terjangkau. Penelitian ini merupakan salah satu pengembangannya, dimana menggunakan aluminium matrix composite yang merupakan capuran dari aluminium 6061, silikon 7 %, silikon karbida 5 % magnesium 1 % dan susunan kawat ss201 di dalamnya. Material aluminium matrix composite tersebut lalu dilakukan pre-heating dengan suhu 350℃ dan diberi perlakuan multi axial forging dengan tujuan untuk memperhalus struktur butir dengan harapan meningkatkan sifat mekanisnya. Berdasarkan hasil karakterisasi dari pengaruh multi axial forging pada aluminium matrix composite menghasilkan peningkatan nilai kekerasan yang semula 51,33 HRB menjadi 71,33 HRB. Peningkatan sifat ketangguhan terjadi dimana aluminiuim matrix composite dengan MAF mampu menyerap energi sebesar 15 Joule. Diameter lubang dari hasil uji balistik pada AMC with MAF juga terlihat lebih kecil yaitu 11 mm untuk bagian depan dan 14 mm untuk bagian belakang. Sementara iitu kondisi struktur butir dari AMC with MAF lebih rapat daripada tanpa MAF menyebabkan hasil dari penyebaran struktur butir secara merata. Kondisi ini dapat menyebabkan keseragaman kekerasan terdistribusi lebih merata. | |||||||||
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
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| Divisions: | 03-Fakultas Teknik 03-Fakultas Teknik > 21201-Jurusan Teknik Mesin |
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| Depositing User: | Mr Muhamad Farizkhan Sahib | |||||||||
| Date Deposited: | 03 Feb 2023 16:04 | |||||||||
| Last Modified: | 03 Feb 2023 16:04 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/20603 |
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