Analisis Pengaruh Holding Time Proses Solution Treatment dan Artificial Aging terhadap Kekerasan dan Struktur Mikro Cu-Zn-Al Shape Memory Alloy

Yusuf, Muhammad Falqi (2021) Analisis Pengaruh Holding Time Proses Solution Treatment dan Artificial Aging terhadap Kekerasan dan Struktur Mikro Cu-Zn-Al Shape Memory Alloy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Shape Memory Alloy (SMA’s) adalah paduan yang memiliki kemampuan untuk mengembalikan bentuknya ke awal setelah proses deformasi dengan pemanasan di atas temperatur transformasinya, yang disebut sebagai Shape Memory Effect (SME). Paduan Cu-Zn-Al dapat dikembangkan lebih baik, salah satunya pada sifat Shape Memory Effect (SME) di dalamnya. Paduan Cu-Zn-Al dapat dibuat melalui metode pengecoran dan dilanjutkan dengan proses perlakuan panas homogenizing, annealing, solution treatment (10, 20, 30, dan 40 menit), dan artificial aging. Pada hasil struktur mikro didapatkan bahwa seiring pertambahan waktu tahan solution treatment, ukuran butir akan semakin besar. Sedangkan pada artificial aging, didapatkan bahwa peningkatan nilai kekerasan disebabkan oleh pertumbuhan fasa γ yang semakin banyak. Dari hasil pengujian kekerasan, didapatkan bahwa kekerasan tertinggi terdapat pada spesimen solution treatment dengan waktu tahan 10 menit sebesar 181,33 ± 5,44 HV dan spesimen artificial aging dengan waktu tahan solution treatment 10 menit sebesar 235,67±4,92 HV.
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Shape Memory Alloy (SMA's) is an alloy that can restore its
original shape after the deformation process by heating it above its
transformation temperature, which is known as a Shape Memory
Effect (SME). Cu-Zn-Al alloy can be developed better, one of which
is the Shape Memory Effect (SME) in it. Cu-Zn-Al alloy were made
by casting method and followed by a heat treatment process of
homogenizing, annealing, solution treatment (10, 20, 30, and 40
minutes), and artificial aging. The results of the microstructure
show that as the solution treatment holding time increases, the
grain size will increase. While in artificial aging, it was found that
the increase in hardness value was caused by the growth of more
γ-phase. From the hardness test results, the highest value of
hardness was found in solution treatment specimens with a holding
time of 10 minutes with the value 181,33 ± 5,44 HV and artificial
aging specimens with a solution treatment holding time of 10
minutes with the value 235,67±4,92 HV.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Cu-Zn-Al Alloy, Hardness, Heat Treatment, Microstructure, Shape Memory Alloy, Kekerasan, Paduan Cu-Zn-Al, Perlakuan Panas, Struktur Mikro.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA418.42 Hardness properties and tests. Hardness--Testing. T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy T Technology > TS Manufactures > TS205 Metals--Heat treatment.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering
Depositing User:	Muhammad Falqi Yusuf
Date Deposited:	12 Aug 2021 15:01
Last Modified:	24 Mar 2022 08:08
URI:	http://repository.its.ac.id/id/eprint/85948

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