Pengaruh Waktu Proses Austemper terhadap Sifat Mekanis Bahan FCD-70  

Oleh:

Firmanto, A.B. ; Subagyo

Jenis: Article from Journal - ilmiah nasional
Dalam koleksi: Media Teknika: Jurnal Teknologi vol. 4 no. 1 (Jun. 2004), page 20-24.
Topik: Austemper Duetile Iron; Austempering; Heat Treatment; Ferrous Materials .

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM77.1 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

The study of the effect of austemper on the mechanical properties of FCD-70 has been investigated. The study are done on 250 º C and 350 º C austemper temperature. The chemical composition of FCD-70 material are 3.36% C, 2.36% Si, 0.63% Mn and 1.03% Cu, which the number of graphite > 125 nodul/mm 2 . Initial tensile strength of the material is + 88 kg/mm 2 , hardness is 306 BHN, and elongation 4%. The result of the study shows that the optimum time of austemper is approximated 1.5-2 hours at the 350ºC, while on the 250ºC the optimum time of austemper is approximated 2-3 hours.

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