Pengujian Kekerasan dan Analisa Struktur Mikro Besi Cor Putih dengan Scanning Electron Microscope - Energy Dispersive X-Ray Spectroscopy (SEM-EDS)

Perdana, Veno Bagus and , Ir. Agung Setyo Darmawan, S.T., M.T (2022) Pengujian Kekerasan dan Analisa Struktur Mikro Besi Cor Putih dengan Scanning Electron Microscope - Energy Dispersive X-Ray Spectroscopy (SEM-EDS). Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

In the foundry industry, we often hear of a type of cast iron called white cast iron. White cast iron is one of the cast irons that does not have graphite so that it has mechanical properties that are very hard but brittle. This research was conducted to determine the microstructure, chemical composition of the phase, and the 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 performed using the Micro Vickers method. The results of the SEM-EDS test show that white cast iron contains cementite (Fe3C) and pearlite phases. In the cementite phase, Fe (Ferro) is 94.1% by weight, C (Carbon) s 4.7% by weight, and O (Oxygen) is 1.2% by weight. Then in the pearlite phase there are elements of Fe (Ferro) of 95.3% by weight, elements of C (Carbon) of 3.8% by weight, and elements of Si (Silicon) of 0.9% by weight. The results of the hardness test showed that the highest hardness value occurred in the cementite phase with a hardness value of 675.16 VHN. While the lowest hardness value occurs in the pearlite phase with a hardness value of 330.23 VHN. Furthermore, at the grain boundaries of the cementite phase with the pearlite phase it has a hardness value of 433.32 VHN. In this area, the hardness value is between the cementite and pearlite phases.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	White cast iron, microstructure, hardness
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	VENO BAGUS PERDANA
Date Deposited:	13 Aug 2022 01:05
Last Modified:	13 Aug 2022 01:05
URI:	http://eprints.ums.ac.id/id/eprint/103738

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