Analisa Permukaan Patahan Spesimen Uji Impak Besi Cor Nodular Dengan Variasi Kandungan Magnesium 0,0296%, 0,0307% Dan 0,0336%

Saputra, Roman Rio and , Agung Setyo Darmawan, ST. MT (2020) Analisa Permukaan Patahan Spesimen Uji Impak Besi Cor Nodular Dengan Variasi Kandungan Magnesium 0,0296%, 0,0307% Dan 0,0336%. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

This study aims to determine the effect of variations in the content of magnesium (Mg) nodular cast iron on the microstructure and fracture surface of nodular cast iron impact test specimens.This research uses FCD (ferro casting ductile) as a starting material which is then melted in a melting furnace. The process of forming round graphite cast iron is carried out using an open ladel system, namely the variation of the addition of FeSiMg 0 grams (raw material), 50 grams and 100 grams which is placed at the bottom of the ladle with a capacity of 15 kg just before the molten iron is poured into the ladle.The results showed that the more magnesium (Mg) content, the resulting graphite grains tended to decrease and tend to shrink, more pearlite and less ferrite. Meanwhile, from SEM testing that each specimen has a mixed fracture, namely clay and brittle fractures. The fracture surface shows the more magnesium content the more brittle fracture areas are according to Kartika's research (2019). However, specimen 3 appears to have more clay fracture areas, this is due to the uneven mixing of FeSiMg.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Nodular iron, micro photo and SEM
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	ROMAN RIO SAPUTRA
Date Deposited:	16 Sep 2020 03:14
Last Modified:	16 Sep 2020 03:14
URI:	http://eprints.ums.ac.id/id/eprint/85965

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