Pengaruh Anil pada Suhu 850oC dengan Waktu Tahan 20 Menit terhadap Struktur Mikro dan Kekerasan Brinell Besi Cor Putih

Subekti, Wildan Arya Nanda and , Ir. Agung Setyo Darmawan, S.T., M.T., IPM. (2023) Pengaruh Anil pada Suhu 850oC dengan Waktu Tahan 20 Menit terhadap Struktur Mikro dan Kekerasan Brinell Besi Cor Putih. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

In the world of the metal casting industry, we often hear about a type of cast iron called white cast iron. White cast iron is a type of cast iron that does not have graphite so it has mechanical properties that are very hard but brittle. This research aims to determine the effect of annealing at a temperature of 850°C with a holding time of 20 minutes on the microstructure, phase chemical composition, and hardness value of white cast iron. Metallographic testing and composition testing were carried out using Scanning Electron Microscope – Energy Dispersive X-Ray Spectroscopy (SEM-EDS), while hardness testing was carried out using the Brinell method. The results of SEM-EDS testing show that white cast iron that has undergone an annealing process contains graphite, cementite (Fe3C) and pearlite phases. In the graphite phase there are Carbon (C) elements of 79.88% by weight, Ferro (Fe) by 16.11% by weight, and Oxygen (O) by 4% by weight. Then in the cementite phase (Fe3C) there are Ferro elements (Fe) amounting to 92.60% by weight, Carbon (C) by 7.30% by weight, and Oxygen (O) by 0.10% by weight. And in the pearlite phase there are Ferro (Fe) elements of 86.31% by weight, Silicon (Si) by 4.49%, Carbon (C) by 3.59% by weight, Aluminum (Al) by 1.09% by weight, and Oxygen (O) element is 4.49% by weight. The results of hardness testing show that the highest hardness value occurs in raw material with an average hardness value of 474.163 BHN. Meanwhile, the lowest hardness value occurred in test specimens that had been annealed with an average hardness value of 379,497 BHN.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Besi cor putih, struktur mikro, kekerasan brinell, anil
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	WILDAN ARYA NANDA SUBEKTI
Date Deposited:	19 Dec 2023 01:45
Last Modified:	19 Dec 2023 01:45
URI:	http://eprints.ums.ac.id/id/eprint/119088

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