Analisa Pengaruh Media Pendingin Heat Treatment terhadap Konduktivitas Thermal Baja AISI 4140

Ridho, Ahmad Roshid and , Amin Sulistyanto S.T, M.T (2020) Analisa Pengaruh Media Pendingin Heat Treatment terhadap Konduktivitas Thermal Baja AISI 4140. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

AISI 4140 steel is steel containing 0.98% chromium, 0.42% carbon, this shows that AISI 4140 steel is a low alloy steel. This steel is also suitable for the heat treatment process which can increase the hardness of the steel. This study aims to determine the effect of the heat treatment process media on changes in microstructure and thermal conductivity of AISI 4140 steel. The process of making specimens, steel cut 4mm thick and 2mm with a diameter of 40 mm by 4 pieces then treated with a temperature of 850 ° C for 30 minutes and cooled using air, water and oil cooling media. After the heat treatment process the steel is then tested for microstructure and thermal conductivity test. The results of the study show that changes in the microstructure affect the thermal conductivity value of AISI 4140 steel. AISI 4140 steel which is heat treated using oil coolers has large granules and has good conductivity values. whereas steel which is cooled by using air has small granules and low conductivity. Keywords: "AISI 4140, heat treatment,micro structure, thermal conductivity "

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Keywords: "AISI 4140, heat treatment,micro structure, thermal conductivity "
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	AHMAD ROSHID RIDHO
Date Deposited:	15 Feb 2020 01:58
Last Modified:	15 Feb 2020 01:58
URI:	http://eprints.ums.ac.id/id/eprint/80886

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