DIRMANTARA, ALIF LUKMAN (2025) EFEK TEMPERATUR TERHADAP PERUBAHAN FASE PADA PROSES SINTERING Al-FeCr-SiC YANG DISIAPKAN DENGAN PLANETARY BALL MILLING. S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
The limitation of aluminium alloys as structural materials lies in their low resistance to high temperatures and oxidation, thus requiring modification through the addition of alloying elements such as Fe and Cr, as well as ceramic reinforcement particles like SiC, to enhance their performance. This study aims to examine the effect of sintering temperature on the density and phase transformation of Al–FeCr–SiC alloys prepared using the planetary ball milling method. The sintering process was carried out at temperatures of 600°C, 700°C, and 800°C with a holding time of 2 hours under an argon and vacuum atmosphere, followed by density testing using the Archimedes method and phase characterization using X-Ray Diffraction (XRD). The results showed that the actual densities at 600°C, 700°C, and 800°C were 3.08756 g/cm³, 3.08147 g/cm³, and 3.03742 g/cm³, respectively. XRD characterization did not reveal the formation of new intermetallic phases, but rather only the main phases of Al, Fe, Cr, and SiC, along with unidentified impurity phases. The decrease in metal peak intensity at high temperatures indicates that reactions occurred between the metallic elements. These findings demonstrate that sintering temperature control greatly influences the density and microstructural stability and is therefore crucial for the development of high-temperature-resistant materials. Keyword: Sintering, Al-FeCr-SiC, Effect Temperature, Transformation Phase, Density. Permasalahan pada paduan aluminium sebagai material struktural terletak pada ketahanannya yang rendah terhadap suhu tinggi dan oksidasi, sehingga diperlukan modifikasi dengan penambahan unsur paduan seperti Fe dan Cr serta partikel penguat keramik SiC untuk meningkatkan performanya. Penelitian ini bertujuan untuk mengkaji pengaruh temperatur sintering terhadap densitas dan perubahan fase pada paduan Al–FeCr–SiC yang disiapkan menggunakan metode planetary ball milling. Proses sintering dilakukan pada temperatur 600°C, 700°C, dan 800°C dengan waktu tahan 2 jam dalam atmosfer argon dan vakum, diikuti uji densitas menggunakan metode Archimedes dan karakterisasi fase menggunakan X-Ray Diffraction (XRD). Hasil menunjukkan bahwa densitas aktual pada temperatur 600°C sebesar 3,08756 g/cm³, yang kemudian pada 700°C 3,08147 g/cm³ dan 800°C 3,03742 g/cm³. Karakterisasi XRD tidak menunjukkan terbentuknya fase intermetalik baru, melainkan hanya fase utama Al, Fe, Cr, dan SiC dan fase pengotor yang tidak dapat diidentifikasi. Penurunan intensitas puncak logam pada suhu tinggi mengindikasikan bahwa terjadi reaksi antara logam. Temuan ini menunjukkan bahwa kontrol suhu sintering sangat memengaruhi densitas dan kestabilan mikrostruktur, serta penting untuk pengembangan material tahan suhu tinggi. Kata Kunci: Sintering, Al-FeCr-SiC, Efek temperatur, Transformasi fase, Densitas.
| Item Type: | Thesis (S1) |
|---|---|
| Call Number CD: | FT/MSN. 25 069 |
| NIM/NIDN Creators: | 41321010030 |
| Uncontrolled Keywords: | Sintering, Al-FeCr-SiC, Efek temperatur, Transformasi fase, Densitas. |
| Subjects: | 600 Technology/Teknologi > 660 Chemical Engineering and Related Technologies/Teknologi Kimia dan Ilmu yang Berkaitan 600 Technology/Teknologi > 660 Chemical Engineering and Related Technologies/Teknologi Kimia dan Ilmu yang Berkaitan > 669 Metallurgy/Metal, Metalurgi 600 Technology/Teknologi > 660 Chemical Engineering and Related Technologies/Teknologi Kimia dan Ilmu yang Berkaitan > 669 Metallurgy/Metal, Metalurgi > 669.7 Nonferrous Metals/Metalurgi Logam Bukan Besi |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | khalimah |
| Date Deposited: | 25 Aug 2025 08:54 |
| Last Modified: | 25 Aug 2025 08:54 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/97095 |
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