Analisis Pengaruh Variasi Quenching Solution Treatment Dan Proses Artificial Aging Terhadap Struktur Mikro Dan Kekerasan Cu-Zn-Al Shape Memory Alloy

Masrul, Reza Ihsandri (2021) Analisis Pengaruh Variasi Quenching Solution Treatment Dan Proses Artificial Aging Terhadap Struktur Mikro Dan Kekerasan Cu-Zn-Al Shape Memory Alloy. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Shape Memory Alloy (SMA) merupakan jenis paduan yang memiliki kemampuan mengingat bentuk sebagai respon dari panas, yang disebut sebagai Shape Memory Effect (SME). Salah satu jenis dari SMA adalah paduan Cu-Zn-Al. Pada penelitian ini, dilakukan proses solution treatment dengan variasi dari metode quenching yaitu direct quench dan step – quench dengan media pendingin brine dan ice water. Dilanjutkan dengan proses artificial aging untuk melihat pengaruh perlakuan tersebut terhadap struktur mikro dan kekerasan Cu-Zn-Al. Dari hasil pengujian yang telah dilakukan, struktur mikro pada direct quench brine menunjukkan mikrostruktur yang lebih bagus dibandingkan dengan spesimen lainnya. Pada metode direct quench terbentuk fasa α, β, β’ dan γ, sedangkan pada step quench hanya muncul fasa α, β, dan β’ saat solution treatment dan fasa γ muncul pada saat proses artificial aging. Untuk kekerasan tertinggi didapatkan pada spesimen DQIW6h yaitu sebesar 237 ± 3,74 HRV.
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Shape Memory Alloy is an alloy that has the ability to remember shapes in response to heat, which is known as Shape Memory Effect. In this study, a solution treatment process was carried out with variations of the quenching method, namely direct quenching and step-quenching with brine and ice water as cooling media. Followed by an artificial aging process to see the effect of this treatment on the properties of hardness, and microstructure of Cu-Zn-Al. The result are microstructure of direct quench with brine as the quenchant is better than other specimen. In the direct quench method, phase α, β, β’, and γ were produced, but in step quench method only α, β, and β’were produced during solution treatment, the γ produced in the artificial aging process. And the highest specimen’s hardness is on DQIW6h with the value 237 ± 3,74 HRV.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Cu-Zn-Al, kekerasan, quench, perlakuan panas, shape memory alloy, struktur mikro. Cu-Zn-Al, hardness, heat treatment, quench, shape memory alloy, microstructure
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 > 28201-(S1) Undergraduate Thesis
Depositing User:	Reza Ihsandri Masrul
Date Deposited:	13 Aug 2021 01:06
Last Modified:	13 Aug 2021 01:06
URI:	http://repository.its.ac.id/id/eprint/85886

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