Perbandingan Artificial Aging Dengan Natural Aging Terhadap Struktur Mikro Dan Kekerasan Pada Aluminium (Al-Cu)

Widyatmoko, Muhammad Riky and -, Ir. Pramuko Ilmu Purboputro M.T (2019) Perbandingan Artificial Aging Dengan Natural Aging Terhadap Struktur Mikro Dan Kekerasan Pada Aluminium (Al-Cu). Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Aging is one method to increase hardness or strength in aluminum alloys (Al-Cu). This study uses Al-5,4136% Cu with an artificial aging method at a temperature of 300˚C, 350˚C, 400˚C and held for a specified time of 1 hour, and Natural Aging at room temperature and held for 7 days, 9 day, 11 days. aging (aging) at a temperature of 300˚C with a holding time of 1 hour obtained an average hardness of 49.1 HRB, then at a temperature of 350˚C with a holding time of 1 hour obtained an average hardness of 35.9 HRB, at a temperature of 400˚C with a holding time of 1 hour obtained an average hardness of 46.73 HRB. In the natural aging method with a holding time of 7 days the average hardness is 71.46 HRB. Then in the holding time of 9 days the average hardness was 70.46 HRB, while in the natural aging with an holding time of 11 days the average hardness was 73.03 HRB. From the results of the above study showed that the artificial aging temperature variations of 300˚ C, 350˚ C, 400˚ C in Al-Cu obtained the highest hardness - an average of 300˚ C at 49.1 HRB. In natural aging, the variation of the holding time was 7 days, 9 days, 11 days and the highest violence was obtained on 11 days of detention of 73.03 HRB.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	heat treatment, artificial aging, natural aging
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	MUHAMMAD RIKY WIDYATMOKO
Date Deposited:	27 Dec 2019 06:32
Last Modified:	27 Dec 2019 06:32
URI:	http://eprints.ums.ac.id/id/eprint/79654

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