A Study on the Physical Properties of the Newly Calculated Phases of Cu-Al-Be Alloys by iab initio/i Calculations
Yazarlar (1)
Doç. Dr. Cengiz SOYKAN Kırşehir Ahi Evran Üniversitesi, Türkiye
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Özgün Makale
(SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
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| Dergi Adı | ACTA PHYSICA POLONICA A (Q4) | ||
| Dergi ISSN | 0587-4246 Dergi Bilgileri (2019) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2019 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-09-2019 |
| Cilt / Sayı / Sayfa | 136 / 3 / 411–423 | DOI | 10.12693/APhysPolA.136.411 |
| Makale Linki | http://przyrbwn.icm.edu.pl/APP/PDF/136/app136z3p06.pdf | ||
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Yoğun Madde Fiziği
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| Özet |
| Many different types of alloys have been developed as alternatives to Ni–Ti alloys, which is the most common conventional shape memory alloy (SMA). While Ti–Ni alloys have a limited range of martensitic transformation within 200–300 K range [1, 2], Cu–Al based SMAs have a wider range of martensitic transformation temperatures such as 77–473 K [3–5]. However, different triple Cu–Al based alloys such as Cu–Al–Mn [5, 6], Cu–Al–Be [7, 8] and Cu–Al–Ni [9–11] have been reported to have better mechanical behavior. In addition, the most important factors in favor of Cu-based alloys include lightness, successful shape memory effect, affordable price, very good damping capacity, and good characteristics. Due to these advantageous properties, Cu-based alloys have the potential to be used in application fields such as automotive, aerospace industries, and as sensors and actuators for health monitoring and microelectromechanical devices. It has been observed that Cu–Al–Be SMAs exhibit martensitic phase transition from L21 (austenitic) phase corresponding author; e-mail: cengiz. soykan@ ahievran. edu. tr to 18R or 18R to 6R phase depending on the strain [12]. Due to this martensitic phase transition, the changing properties make the Cu-based alloy attractive for damping applications. Pseudo-elastic behavior is a feature that SMAs can exhibit. Pseudo-elastic behavior in Cu-based alloys is dependent on the stress that occurs from the austenitic DO3 (or L21) phase to the 18R martensitic phase during the martensitic phase transition. The stress required for martensitic transformation is higher than that required for recycling the austenitic … |
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BM Sürdürülebilir Kalkınma Amaçları
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