Meilani, Alfan Zamil (2016) Pengaruh Waktu Pencampuran Dan Temperatur Sintering Terhadap Komposisi Fasa Intermetalik Dan Sifat Mekanik Komposit Cu-10%Wtsn Sebagai Material Peluru Frangible. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Komposit Cu-Sn digunakan sebagai material peluru
frangible. Sifat yang perlu dimiliki peluru frangible adalah keras
dan getas. Sifat keras dan getas diperoleh dari fasa intermetalik.
Proses manufaktur peluru ini menggunakan metode metalurgi
serbuk. Tahapan proses penelitian ini yaitu (1) wet mixing
menggunakan variasi waktu yaitu 30, 60, 90 menit, (2) kompaksi
dengan tekanan 600 MPa, (3) sintering dengan variasi temperatur
200, 300 dan 400oC dengan waktu tahan 30 menit. Setelah
dilakukan analisa data dan pembahasan terhadap hasil uji XRD,
SEM-EDX, dan uji mekanik dapat disimpulkan bahwa persentase
fasa intermetalik yang paling optimum terdapat pada waktu
pencampuran 90 menit dengan temperatur sintering 400C yaitu
sebesar 45,53% Cu3Sn dan porositas yang paling banyak
ditemukan pada waktu pencampuran 90 menit di setiap variasi
temperatur sintering. Nilai kekerasan dan kekuatan tekan terbesar
yaitu 82,05 HRF dan 412 MPa terdapat pada komposit Cu-
10%wtSn dengan waktu pencampuran 30 menit dan temperatur
sintering 400C. Nilai kekerasan dan kekuatan tekan terkecil
yaitu 70,82 HRF dan 242 MPa terdapat pada komposit Cu-
10%wtSn dengan waktu pencampuran 90 menit dan temperatur
sintering 200C.
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Cu-Sn composite is used as a frangible bullet material.
Properties that need to frangible bullets are hard and brittle. The
nature of hard and brittle are obtained of intermetallic phases.
The bullet manufacturing process using powder metallurgy
method. Stages of the research process: (1) wet mixing using a
variation of the time are 30, 60, 90 minutes, (2) compaction with
a pressure of 600 MPa, (3) sintering with a temperature variation
of 200, 300 and 400C with holding time 30 minutes. After
analysis of data and discussion of test results of XRD , SEM -
EDX , and mechanical tests can be concluded that the most
optimum percentage of intermetallic phases contained in mixing
time of 90 minutes with sintering temperature 400C that is 45.53
% Cu3Sn and the most of porosity is found in mixing time of 90
minutes in each sintering temperature variations. The biggest
value of hardness and compressive strength at Cu-10%wtSn
composite are 82,05 HRF and 412 MPa which contained in the
mixing time of 30 minutes and the sintering temperature 400C .
The smallest value of hardness and compressive strength at Cu-
10%wtSn composite are 70,82 HRF and 242 MPa which
contained in the mixing time of 90 minutes and the sintering
temperature 200C.
Item Type: | Thesis (Undergraduate) |
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Additional Information: | RSMt 671.373 Mei p |
Uncontrolled Keywords: | Cu-Sn composite, powder metallurgy, intermetallic phase. |
Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy |
Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
Depositing User: | EKO BUDI RAHARJO |
Date Deposited: | 25 Oct 2019 02:19 |
Last Modified: | 25 Oct 2019 02:19 |
URI: | http://repository.its.ac.id/id/eprint/71401 |
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