Analisa Pengaruh Tekanan dan % Komposisi terhadap Nilai Kekerasan Komposit Al-Abu Dasar Batu Bara dengan Metode Metalurgi Serbuk

Andryanto, Lulot (2022) Analisa Pengaruh Tekanan dan % Komposisi terhadap Nilai Kekerasan Komposit Al-Abu Dasar Batu Bara dengan Metode Metalurgi Serbuk. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.

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Abstract

Proses metalurgi serbuk relative lebih baru dan memiliki beberapa kelebihan dibandingkan dengan proses pengecoran. Namun demikian proses ini tidak bisa menggantikan sepenuhnya fungsi proses pengecoran. Masing – masing proses memiliki kelebihan dan kekurangan. Pada penelitian ini menentukan efek dan variasi terhadap tekanan dan suhu sintering terhadap nilai densitas, struktur mikro, dan kekerasan. dengan metode powder metalurgy, Dengan bahan dasar serbuk alumunium murni dengan penambahan serbuk abu dasar batu bara. Variasi tekanan yang kita gunakan yaitu 4000, 5000, dan 6000 Psi. Dengan temperatur sintering 400°C . Untuk pengambilan data yang kita gunakan dengan pengujian densitas, pengujian struktur micro, dan pengujian kekerasan. Dari hasil pengujian ini di dapatkan. nilai kekerasan terbesar ada pada tekanan 4000 Psi pada suhu sintering 400°C sebesar 64,83 HRB, dan nilai kekerasan terendah terdapat pda tekanan 6000 Psi pada suhu sintering 400°C sebesar 23 HRB. Hal ini menunjukan bahwa tekanan dan suhu sintering sangat berpengaruh pada nilai densitas, struktur mikro dan kekerasan.

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