Analisis Pengaruh Variasi Suhu Sinter dan Tekanan Kompaksi Terhadap Paduan Al-SiC 12% Dengan Uji Densitas, Kekerasan, dan Struktur Mikro pada Metode Metalurgi Serbuk. (Analysis of The Effect of Sintered Temperature Variation and Compaction Pressure on 12% Al-SiC Alloy By Density, Hardness, and Microstructure Tests in Powder Metallurgy Method).

Siallagan, Maifan Aditya (2024) Analisis Pengaruh Variasi Suhu Sinter dan Tekanan Kompaksi Terhadap Paduan Al-SiC 12% Dengan Uji Densitas, Kekerasan, dan Struktur Mikro pada Metode Metalurgi Serbuk. (Analysis of The Effect of Sintered Temperature Variation and Compaction Pressure on 12% Al-SiC Alloy By Density, Hardness, and Microstructure Tests in Powder Metallurgy Method). Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

The powder metallurgy process is the process of making products using powder base materials which are then compacted and disinte. In this study, it was discussed about the influence of compaction pressure variations and temperature variations of the sintering process on the mechanical properties of aluminum and silicon carbide mixture materials in powder metallurgy. The material used in this study was aluminum powder with a particle size of 320 mesh mixed with silicon powder with a particle size of 300 mesh. This powder is compacted with pressures of 5500 Psi, 6 000 Psi and 6500 Psi then sintered at temperatures of 400°C, 500°C, 550°C with a holding time of 120 minutes. Then density testing, hardness and microstructure testing are carried out. From the results of research on the relationship between compaction pressure and sintering temperature to density, it was found that the highest density value in Al-SiC samples with a compaction pressure of 6500 Psi at a sintering lemperature of 400°C with a value of 2.979 gr/cm' and the lowest value was obtained in samples with a compaction pressure of 5500 Psi at a sintering temperature of 550°C with a value of 2.859 gr/cm' and pure Al samples showed that the highest density value was obtained at a compaction pressure of 6500 Psi at a sintering temperature of 400°C of 2.967 gr/cm and the lowest density value was obtained in a sample with a compaction pressure of 5500 Psi with a sintering temperature of 550°C of 2.906 gr/cm'.So can beknotted It is known that the greater the pressure variation, the hardness will increase and when the temperature given is higher, the hardness value will decrease. Meanwhile, from the results of hardness testing, the highest hardness value was found in the Al-SiC sample with a compaction pressure of 6500 Psi with a sintering temperature of 500°C of 52.22 HRB and the lowest value was found in a 5500 Psi sample with a temperature of 550°C of 33.22 HRB. While in pure Al samples the highest hardness value was obtained at a pressure of 6500 psi with a sintering temperature of 400°C of 52.5 HRB and the lowest hardness value was obtained at a compaction pressure of 5500 psi with a sintering temperature of 550°C 0/31.84 HRB, from the test showed that the hardness value obtained increased as the pressure applied increased, but when the temperature increased given the hardness value decreased.

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