Analisis Pengaruh Variasi Media Pendingin Dan Temperatur Artificial Aging Paduan Cu-14,6Zn-7,41Al Terhadap Struktur Mikro, Kekerasan Dan Shape Memory Effect

Prayatna, Komang Ananda Putra (2022) Analisis Pengaruh Variasi Media Pendingin Dan Temperatur Artificial Aging Paduan Cu-14,6Zn-7,41Al Terhadap Struktur Mikro, Kekerasan Dan Shape Memory Effect. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Shape memory alloy merupakan smart material yang memiliki sifat unik yaitu shape memory effect. Adanya fasa tunggal β’ melalui proses perlakuan panas dapat menimbulkan shape memory effect paduan Cu-Zn-Al dengan media pendingin sebagai quenching. Sehingga penelitian ini bertujuan menganalisis pengaruh variasi media pendingin dan temperatur artificial aging pada paduan Cu-14,6Zn-7,41Al. Untuk menguji struktur mikro, kekerasan dan shape memory effect digun beberapa pengujian yaitu pengujian OES, XRD, Metalografi, Kekerasan, DSC dan SME. Pengaruh media pendingin menghasilkan 4 struktur mikro utama yaitu fasa α, β, β’ dan fasa γ. Pada proses solution treatment nilai kekerasan tertinggi didapatkan pada media pendingin oli sebesar 201 ± 1,22 VHN sedangkan hasil shape memory effect tertinggi didapatkan pada media pendingin brine sebesar 90% recovery. Pada hasil artificial aging dengan semakin meningkatnya temperatur meningkatkan pertumbuhan fasa α dan fasa γ. Hasil nilai kekerasan tertinggi pada spesimen brine artificial aging 300℃ sebesar 307,2 ± 2,9 VHN dan shape memory effect tertinggi pada artificial aging 100℃ brine sebesar 75%. ================================================================================================ Shape memory alloy is an intelligent material that has the unique properties namely shape memory effect. The presence of a single phase β’ through heat treatment process can cause shape memory effect of Cu-Zn-Al alloy. So this study aims to analyze the effect of variations in cooling media and artificial aging temperatur on the Cu-14,6Zn-7,41Al alloy. Several tests were used to test the microstructure, hardness and shape memory effect, namely OES, XRD, Metallography, Hardness, DSC and SME tests. The Effect of cooling media produced 4 main microstructur namely α-phase, β phase, β’ phase and γ-phase. In the solution treatment process, the highest hardness value was obtained in the oil cooling medium of 201 ± 1.22 VHN, while the highest shape memory effect was obtained in the brine cooling medium of 90% recovery. In the result of artificial aging, with increasing temperatur, the growth of the and phases will increase. The results of the highest hardness value on brine specimens with artificial aging 300°C of 307.2 ± 2.9 VHN and the highest shape memory effect on artificial aging 100°C brine of 75%

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Artificial Aging, Cu-14,6Zn-7,41Al, Media Pendingin, Cooling Media, Kekerasan, Hardness, Shape Memory Effect,
Subjects: T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy
T Technology > TS Manufactures > TS205 Metals--Heat treatment.
T Technology > TS Manufactures > TS253 Die-Casting
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Komang Ananda Putra Prayatna
Date Deposited: 06 Feb 2022 04:19
Last Modified: 06 Feb 2022 04:19
URI: https://repository.its.ac.id/id/eprint/92840

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