Studi Eksperimental Pengaruh Variasi Penambahan Fraksi Volume Abu Terbang (Fly Ash) Terhadap Karakteristik Fluiditas Dan Sifat Mekanik Alumunium Matrix Composite

Rahman, Hastya Alfian (2014) Studi Eksperimental Pengaruh Variasi Penambahan Fraksi Volume Abu Terbang (Fly Ash) Terhadap Karakteristik Fluiditas Dan Sifat Mekanik Alumunium Matrix Composite. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img] Text
2109100070-Undergraduate_Theses.pdf - Published Version

Download (5MB)
[img] Text
2109100070-paper.pdf - Published Version

Download (2MB)
[img] Text
2109100070-Presentation.pdf - Presentation

Download (33MB)

Abstract

Fluiditas merupakan salah satu faktor yang menjadi pertimbangan di dalam dunia pengecoran. Pada proses pembuatan alumunium matrix composite dengan partikel penguat berupa abu terbang (fly ash) melalui proses pengecoran, kemampuan logam cair untuk mengalir sampai batas tertentu merupakan keuntungan tersendiri dari alumunium matrix composite tersebut selain ditinjau dari sifat mekaniknya. Penelitian ini difokuskan meneliti pengaruh penambahan partikel abu terbang terhadap karakteristik fluiditas, persebaran distribusi partikel abu terbang, sifat mekanik, dan struktur mikro dari alumunium matrix composite dengan variasi penambahan partikel abu terbang pada kadar 10%, 15%, 20%, 25%, dan 30%. Penelitian ini dilakukan dengan melebur alumunium hingga temperatur + 850oC, kemudian menambahkan partikel abu terbang dan diaduk dengan metode stir casting pada putaran 515 rpm selama 15 menit. Campuran tersebut kemudian dituang ke dalam cetakan fluiditas dan didinginkan. Dari penelitian ini didapatkan bahwa seiring dengan meningkatnya prosentase abu terbang, maka fluiditas dari alumunium matrix composite akan mengalami penurunan. Persebaran distribusi partikel abu terbang pada matriks terlihat acak, namun memiliki kecenderungan untuk turun dari setpoint 1 v sampai dengan titik 11. Nilai kekerasan alumunium matrix composite mempunyai kecenderungan meningkat sampai dengan penambahan fraksi volume 20% abu terbang. ========== Fluidity is one factor to be considered in the casting technology. In the process of making aluminum matrix composite with reinforce particles such as fly ash by the casting process, molten metal's ability to flow until some extent is a distinct advantage of the aluminum matrix composite apart in terms of its mechanical properties. This study focused on examining the effect of the addition of fly ash particles on the characteristics of fluidity, distribution of fly ash particle in alumunium matrix composite, mechanical properties, and microstructure of aluminum matrix composite with the addition of a variation of fly ash particles at levels 10%, 15%, 20%, 25%, and 30%. This research was started by melting aluminum to + 850oC, then the fly ash particles added to molten metal and mixing by stir casting method on 515 rpm for 15 minutes. The mixture is then poured into fluidity molds and cooled by air. From this study, we had found that by increasing percentage of fly ash make the fluidity of the aluminum matrix composite will decrease. Distribution of fly ash particle in the matrix looks random, but has a tendency to decrease from setpoint 1 to 11 points. Mechanical properties of hardness of alumunium matrix composite will increase to the addition of 20% fly ash of fraction volume.

Item Type: Thesis (Undergraduate)
Additional Information: RSM 620.118 Rah s
Uncontrolled Keywords: Fluiditas, Alumunium Matrix Composite, Abu Terbang (Fly Ash), Stir Casting, Kekerasan, Distribusi Partikel, dan Struktur Mikro, Fluidity, Alumunium Matrix Composite, Fly Ash, Stir casting, Hardness, Particle Distribution, and Microstructure.
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics > TL240.5 Composite materials
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: - Davi Wah
Date Deposited: 30 Jun 2019 15:36
Last Modified: 30 Jun 2019 15:36
URI: http://repository.its.ac.id/id/eprint/63179

Actions (login required)

View Item View Item