Ramadhani, Muhammad Rafly (2023) Analisis Pengaruh Variasi Quenching Method dan Quenching Media pada Shape Memory Alloy Cu-12,36Al-2,06Mn terhadap Struktur Mikro, Kekerasan, dan Shape Memory Effect. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Paduan Shape Memory Alloys (SMA) adalah jenis paduan logam yang memiliki kemampuan untuk kembali ke bentuk semula setelah dideformasi. Proses kembalinya bentuk tersebut dilakukan dengan dilakukan proses perlakuan panas pada temperatur dan waktu tertentu. Kemampuan untuk kembali ke bentuk semula tersebut adalah Shape Memory Effect (SME). Dalam penelitian ini, perlakuan panas yang diberikan pada paduan Cu-12,36Al-2,06Mn diantaranya adalah perlakuan panas homogenizing dan juga perlakuan panas solution treatment. Kemudian material di quench dengan metode step quench dan up quench dengan jenis media pendingin water, brine, dan oil. Setelah dilakukan proses perlakuan panas, maka paduan Cu-12,36Al-2,06Mn dilakukan pengujian Optical Emission Spectroscopy (OES), X-Ray Diffraction (XRD), pengujian metalografi, pengujian kekerasan, pengujian Differential Scanning Calorimetry, dan pengujian Shape Memory Effect untuk mengidentifikasi pengaruh variasi metode quenching dan media pendingin terhadap struktur mikro, kekerasan, dan shape memory effect. Diperoleh hasil bahwa semakin cepat laju pendinginan maka semakin tinggi persentase fasa twinned martensite. Spesimen SB (metode pendinginan step quench dengan media pendingin brine) memiliki fasa twinned martensite terbanyak sebesar 43,883%. Untuk kekerasan tertinggi terdapat pada spesimen UO (metode pendinginan up quench dengan media pendingin oil) dengan nilai 253,67 ± 2,082 VHN. Persentase Shape Memory Effect tertinggi dimiliki oleh spesimen SB sebesar 60%.
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Shape Memory Alloys (SMA) are a type of metal alloy that has the capability to return to its original shape after being deformed. The process of returning to its original form is done through heat treatment at a certain time and temperature. The ability to revert to its original forms is called Shape Memory Effect (SME). The shape memory alloy used in this study was Cu-12,36Al-2,06Mn alloy. The alloy underwent a couple of heat treatment processes that is homogenizing and solution treatment. The alloy was then quenched using step quench and up quench method. The quenchant that was used were water, brine, and oil. After heat treatment, the Cu-12,36Al-2,06Mn alloy was tested with Optical Emission Spectroscopy (OES), X-Ray Diffraction (XRD), metallography testing, hardness, Differential Scanning Calorimetry, and Shape Memory Effect to determine the effect of variations in quenching method and quenchant on microstructure, hardness, and shape memory effect. The results showed that the faster the cooling rate, the higher the percentage of twinned martensite. Specimen SB (step quench cooling procedure with brine quenchant) showed the highest twinned martensite phase, that is 43,883%. The highest hardness was shown by UO specimen (up quenching procedure with oil quenchant) with hardness value of 253,67 ± 2,082 VHN. The highest Shape Memory Effect was owned by SB specimen with a value of 60%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Cu-Al-Mn, cooling media, hardness, microstructure, quenching method, shape memory alloy, shape memory effect, kekerasan, media pendingin, metode quenching, struktur mikro |
| Subjects: | T Technology > TP Chemical technology > TP1151 Special molding and casting processes 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: | Muhammad Rafly Ramadhani |
| Date Deposited: | 24 Jul 2023 19:18 |
| Last Modified: | 24 Jul 2023 19:18 |
| URI: | http://repository.its.ac.id/id/eprint/99251 |
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