Isman, Felysia (2023) Analisis Pengaruh Variasi Metode Quenching Dan Temperatur Solution Treatment Pada Paduan Cu-12,1al-1,89mn Terhadap Struktur Mikro, Sifat Mekanik, Dan Shape Memory Effect. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Shape Memory Alloy (SMA) merupakan salah satu jenis logam paduan yang mana setelah mengalami deformasi dapat kembali ke bentuk seperti semula setelah dipanaskan pada temperatur tertentu, atau dapat dikatakan memiliki sifat Shape Memory Effect. Shape Memory Alloy yang digunakan pada penelitian ini adalah paduan Cu-12,1Al-1,89Mn. Pada penelitian ini, paduan diberikan perlakuan homogenizing, annealing, dan solution treatment. Solution treatment dilakukan pada tiga temperatur yang berbeda yaitu 800°C, 850°C, dan 900°C dengan holding time selama 15 menit. Selanjutnya, paduan dilakukan quench hingga mencapai temperatur ruang. Quenching dilakukan dengan dua metode berbeda, yaitu step quench dan up quench pada boiling water bertemperatur 100°C selama 15 menit. Kemudian, hasil dari perlakuan tersebut dianalisis dengan menggunakan pengujian Optical Emission Spectroscopy (OES), X-Ray Diffraction (XRD), struktur mikro (metalografi), kekerasan, dan shape memory effect dari paduan Cu-12,1Al-1,89Mn. Didapatkan hasil bahwa terdapat peningkatan fasa twinned martensite serta penurunan jenis fasa yang muncul seiring dengan peningkatan temperatur solution treatment. Spesimen SQ900 (solution treatment pada temperatur 900°C dengan pendinginan step quench) memiliki fasa twinned martensite yang paling banyak. Sementara itu, kekerasan tertinggi dimiliki oleh spesimen UQ900 (solution treatment pada temperatur 900°C dengan pendinginan up quench) dengan nilai kekerasan 248,93 ± 4,801 HV. Nilai Shape Memory Effect terbaik dimiliki oleh spesimen SQ900 dengan presentase recovery sebesar 80%.
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Shape Memory Alloy (SMA) is a type of metal alloy which after being deformed, can return to its original shape after being heated at a certain temperature, or it can be said to have the Shape Memory Effect. The shape memory alloy used in this study is Cu-12.1Al-1.89Mn alloy. In this study, the alloy underwent homogenizing, annealing, and solution treatment. Solution treatment was carried out at three different temperatures, namely 800°C, 850°C, and 900°C with a holding time of 15 minutes. Next, the alloy is quenched until it reaches room temperature. Quenching was carried out using two different methods, namely step quench and up quench in boiling water at 100°C for 15 minutes. Then, the results of the treatment were analyzed using Optical Emission Spectroscopy (OES), X-Ray Diffraction (XRD) tests, microstructure analysis (metallography), hardness, and shape memory effect of the Cu-12,1Al-1,89Mn alloy. It was found that there was an increase in the twinned martensite phase and a decrease in the type of phase that appeared along with an increase in the temperature of the treatment solution. The most twinned martensite phase is found in the SQ900 specimen (solution treated at 900 °C with step quench cooling). Meanwhile, the highest hardness was found in the UQ900 specimen (solution treatment at 900°C with up quench cooling) with a hardness value of 248.93 ± 4,801 HV. The best Shape Memory Effect value is gained by the SQ900 specimen with a recovery percentage of 80%.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSMt 671.36 Ism a-1 2023 |
| Uncontrolled Keywords: | Cu-Al-Mn, kekerasan, Shape Memory Alloy, Shape Memory Effect, solution treatment, struktur mikro, quenching, Cu-Al-Mn, hardness, microstructure, Shape Memory Alloy, Shape Memory Effect, solution treatment, quenching |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.16 Materials--Testing. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Felysia Isman |
| Date Deposited: | 07 Feb 2023 14:16 |
| Last Modified: | 25 Aug 2023 03:58 |
| URI: | http://repository.its.ac.id/id/eprint/96315 |
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