PENGARUH PEMANASAN AUSTEMPER DENGAN TEMPERATUR AUSTENISASI 950° C TERHADAP SIFAT KEKERASAN DAN KEKUATAN TARIK BESI TUANG NODULAR FCD 30

PRADIPTA, DWIJA ARDYA and Nukman, Nukman (2008) PENGARUH PEMANASAN AUSTEMPER DENGAN TEMPERATUR AUSTENISASI 950° C TERHADAP SIFAT KEKERASAN DAN KEKUATAN TARIK BESI TUANG NODULAR FCD 30. Undergraduate thesis, Sriwijaya University.

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Abstract

Proses perlakuan panas austemper yang diberikan pada besi tuang nodular FCD 30 dilakukan untuk mendapatkan peningkatan sifat mekanis dan mengetahui pengaruh pemanasan austemper terhadap sifat kekerasan serta kekuatan tarik besi tuang nodular. Perlakuan panas yang dilakukan yaitu pemanasan awal (preheating) pada temperatur 600° C selama 30 menit, pemanasan pada temperatur austenisasi 950° C selama 60 menit dan diakhiri dengan proses austemper pada temperatur 375° C selama 90 menit. Setelah proses austemper selesai spesimen didinginkan dalam dapur pemanasan. Hasil penelitian menunjukkan bahwa besi tuang nodular FCD 30 mengalami perubahan sifat mekanis setelah diproses austemper. Nilai kekerasan material mengalami peningkatan sebesar 43%, kekuatan tarik material mengalami peningkatan sebesar 4%, regangan meningkat sebesar 60%, dan struktur mikronya mengalami perubahan yaitu terjadi perubahan ukuran grafit menjadi lebih kecil.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Panas austemper, temperatur
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1125-1345 Machine shops and machine shop practice > TJ1185 General works Machine tools and machining Including errors in workmanship, accuracy of fitting, etc. > TJ1185.U43 Fiber-reinforced plastics--Machining. Temperature measurements. Turning (Lathe work)
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Mrs Furika Furika
Date Deposited:	21 May 2024 02:20
Last Modified:	21 May 2024 02:20
URI:	http://repository.unsri.ac.id/id/eprint/144753

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