Pengaruh Variasi Kandungan Magnesium (Mg) Dalam Proses Pembuatan Besi Cor Nodular Terhadap Kekuatan Impak

Kartika, Novan Dwi and , Agung Setyo Darmawan, ST. MT (2019) Pengaruh Variasi Kandungan Magnesium (Mg) Dalam Proses Pembuatan Besi Cor Nodular Terhadap Kekuatan Impak. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Nodular cast iron is one type of cast iron whose graphite is round. Magnesium (Mg) is the most commonly used element in the casting industry as a graphite rounder material because it is more beneficial than other elements. This study aims to determine the effect of variations in the magnesium (Mg) content of nodular cast iron on microstructure, cast iron impact strength . This study uses FCD as the starting material which is then smelted in the melting furnace. The process of forming round graphite cast iron is carried out with an open ladel system, which is a variation of the addition of FeSiMg by 50 grams, 100 grams, and 200 grams which is placed at the base of a 15 kg ladel just before the molten iron is added in the ladel. The results showed that the more elemental magnesium (Mg) was added, the graphite granules produced tended to be smaller, round and uniform, and an increase in pearlite area and reduced ferrite area. While based on impact strength testing, the impact energy from specimens 1 to specimens 5 decreased, the impact price of specimens 1 to specimens 5 decreased and impact broken sections from specimen 1 to specimen 5 decreased toughness.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	casting, nodular iron, impact testing
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	NOVAN DWI KARTIKA
Date Deposited:	25 Jul 2019 03:18
Last Modified:	19 Nov 2019 06:59
URI:	http://eprints.ums.ac.id/id/eprint/74624

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