eprintid: 58844
rev_number: 16
eprint_status: archive
userid: 13276
dir: disk0/00/05/88/44
datestamp: 2026-03-03 02:38:36
lastmod: 2026-03-03 02:38:36
status_changed: 2026-03-03 02:38:36
type: thesis
metadata_visibility: show
contact_email: zulvanadit@gmail.com
creators_name: Aditya, Zulvan
creators_id: 3334200111
contributors_type: http://www.loc.gov/loc.terms/relators/THS
contributors_type: http://www.loc.gov/loc.terms/relators/THS
contributors_name: Hasanah, Indah Uswatun
contributors_name: Mabruri, Efendi
contributors_id: 199012142019032022
contributors_id: 197001051996031002
corp_creators: UNIVERSITAS SULTAN AGENG TIRTAYASA
corp_creators: FAKULTAS TEKNIK
corp_creators: JURUSAN TEKNIK METALURGI
title: PENGARUH VARIASI PRESTRAIN DAN JUMLAH SIKLUS PEMBEBANAN TERHADAP STRUKTUR MIKRO
DAN NILAI SUPERELASTICITY
BAJA Fe-Mn-Si-Ni-Cr-C
ispublished: pub
subjects: TN
divisions: Metalurgi
full_text_status: restricted
keywords: Shape Memory Alloy, Fe-Mn-Si-Ni-Cr-C, Prestrain, Siklus Pembebanan, Superelasticity
abstract: Shape Memory Alloy (SMA) berbasis Fe-Mn-Si-Ni-Cr-C merupakan salah satu material paduan fungsional yang memiliki karakteristik unik dibandingkan dengan logam konvensional, khususnya karena kemampuannya menunjukkan sifat superelasticity. Superelasticity adalah kemampuan material untuk mengalami deformasi regangan yang cukup besar akibat pembebanan mekanik dan kemudian kembali ke bentuk semula secara spontan setelah beban dilepaskan tanpa memerlukan proses pemanasan eksternal. Mekanisme ini terjadi akibat transformasi fasa reversibel antara austenit dan martensit yang dipicu oleh tegangan, sehingga memungkinkan material menyerap serta melepaskan energi secara efektif. Keunggulan tersebut menjadikan SMA banyak dikembangkan dalam berbagai aplikasi rekayasa, terutama pada bidang konstruksi dan mitigasi bencana. Salah satu aplikasi potensialnya adalah sebagai damper pada sistem redaman gempa, karena kemampuannya dalam meningkatkan kapasitas disipasi energi dan ketahanan struktur terhadap beban dinamis berulang. Penelitian ini bertujuan untuk menganalisis pengaruh variasi prestrain sebesar 2%, 4%, dan 6% serta jumlah siklus pembebanan 1x, 4x, dan 6x terhadap perubahan struktur mikro dan nilai superelasticity pada SMA Fe-Mn-Si-Ni-Cr-C. Proses manufaktur yang digunakan meliputi peleburan, homogenisasi, hot rolling, dan solution treatment guna memperoleh struktur awal yang homogen. Hasil penelitian menunjukkan bahwa fraksi fasa Ɛ-martensit meningkat seiring bertambahnya nilai prestrain dan jumlah siklus pembebanan, dengan fraksi tertinggi sebesar 36% pada sampel 4C, yang juga menghasilkan nilai superelasticity maksimum sebesar 0,646%.
date: 2026-01-19
date_type: published
pages: 84
institution: Fakultas Teknik Universitas Sultan Ageng Tirtayasa
department: TEKNIK METALURGI
thesis_type: sarjana
thesis_name: sarjana
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citation:   Aditya, Zulvan  (2026) PENGARUH VARIASI PRESTRAIN DAN JUMLAH SIKLUS PEMBEBANAN TERHADAP STRUKTUR MIKRO DAN NILAI SUPERELASTICITY BAJA Fe-Mn-Si-Ni-Cr-C.  S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.   
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