Napitupulu, Lula Salsabila (2023) Analisis Pengaruh Variasi Holding Time Solution Treatment Dan Step-Quenching 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
Shape Memory Alloy merupakan paduan unik yang memiliki kemampuan untuk dapat kembali ke bentuk aslinya (bentuk atau ukuran) ketika mengalami proses memorisasi antara dua fase transformasi, yaitu temperatur atau tergantung medan magnet. Pada penelitian ini, paduan Cu-12,36Al-2,06Mn diberikan perlakuan panas seperti homogenizing dan solution treatment pada temperatur 900⁰C dengan variasi waktu tahan selama 5, 10, 15 menit. Selanjutnya dilakukan proses quenching dengan metode step-quench. Pada proses step-quench, paduan ditahan dalam boiling water dengan variasi waktu 15 dan 30 menit. Setelah melalui prose perlakuan panas, dilakukan pengujian untuk menganalisis hasil penelitian. Dilakukan pengujian Optical Emission Spectroscopy (OES), pengujian metalografi, pengujian X-Ray Diffraction (XRD), pengujian kekerasan, pengujian Differential Scanning Calorimetry (DSC), serta pengujian Shape Memory Effect (SME) dari paduan Cu-12,36Al-2,06Mn. Didapatkan hasil bahwa terdapat peningkatan fasa twinned martensite seiring dengan pertambahan durasi holding time solution treatment serta serta holding time step quenching. spesimen SB15 (holding time solution treatment 15 menit dan step quenching 30 menit)memiliki nilai kekerasan terbesar yaitu 258,00±0,81 HV dan juga memiliki nilai Shape Memory Effect terbaik sebesar 40%.
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Shape Memory Alloy is a unique alloy that has the ability to return to its original shape or size through a process called memorization between two transformation phases, namely temperature or depending on the magnetic field. In this study, the Cu-12.36Al-2.06Mn alloy will undergo heat treatments such as homogenizing and solution treatment at a temperature of 900°C with variations in holding time for 5, 10, and 15 minutes. Subsequently, a step-quenching process is performed where the alloy is held in boiling water for 15 and 30 minutes. After undergoing the heat treatment process, various tests are conducted to analyze the research results. These tests include Optical Emission Spectroscopy (OES), metallography testing, X Ray Diffraction (XRD) analysis, hardness testing, Differential Scanning Calorimetry (DSC) analysis, and Shape Memory Effect (SME) testing of the Cu-12.36Al-2.06Mn alloy. The results show an increase in the twinned martensite phase with increasing holding time during solution treatment and step-quenching. The SB15 specimen (15 minutes of holding time during solution treatment and 30 minutes of step-quenching) exhibits the highest hardness value of 258.00±0.81 HV and also shows the best Shape Memory Effect with a value of 40%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Cu-Al-Mn, Kekerasan, Step-Quenching, Struktur Mikro, Hardness, Microstructure, Shape Memory Alloy, Shape Memory Effect, Solution Treatment, Step-Quenching |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy T Technology > TN Mining engineering. Metallurgy > TN775 Aluminum alloys--Metallurgy. T Technology > TP Chemical technology > TP1151 Special molding and casting processes T Technology > TS Manufactures > TS205 Metals--Heat treatment. T Technology > TS Manufactures > TS233 Sand casting. Metal castings--Thermal properties. |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Lula Salsabila Napitupulu |
| Date Deposited: | 26 Jul 2023 08:22 |
| Last Modified: | 26 Jul 2023 08:22 |
| URI: | http://repository.its.ac.id/id/eprint/99477 |
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