Cu-Bazlı Şekil Hafızalı Alaşımlarda Fiziksel Parametrelerin Alaşım Elementlerine Duyarlılığı

Year 2020, Volume: 32 Issue: 2, 37 - 44, 24.09.2020

Şahide Nevin Balo

Abstract

Yapılan çalışmada, CuAlBe ve CuAlNi şekil hafızalı alaşımlarında Al ve Be alaşım elementlerinin ağırlık yüzdelerindeki değişimin fiziksel parametrelere duyarlılığı incelendi. Alaşımların dönüşüm sıcaklığındaki değişimler diferansiyel tarama kalorimetresi (DSC) ile mikroyapısal değişimler X-ışını analizi ile belirlendi ve sonuçlar metalografik gözlemler ile desteklendi. Mikrosertlik ölçümleri alındı. Cu-bazlı şekil hafızalı alaşımların önemli parametrelerinin alaşım elementlerine bağlı olarak ne ölçüde değiştiği tartışıldı.

Keywords

şekil hafızalı alaşımlar, CuAlBe, CuAlNi, mikrosertlik, kristal boyutu

References

• [1] L.Vrsalovic, I. Ivanic, S. Kozuh, S. Gudic, B. Kosec , M. Gojic, Effect of heat treatment on corrosion properties of CuAlNi shape memory alloy Trans. Nonferrous Met. Soc. China 28(2018) 1149−1156
• [2] Parveen Kumar, Sindhu Kumar., (2014). National Conference on Synergetic Trends in Engineering and Technology (STET-2014) International Journal of Engineering and Technical Research ISSN: 2321-0869, Special Issue
• [3] Stefan Niedbalski, Alicia Durán, MagdalenaWalczak, Jorge A. Ramos-Grez, Laser-Assisted Synthesis of Cu-Al-Ni Shape Memory Alloys: Effect of Inert Gas Pressure and Ni Content. Materials 2019, 12, 794 1-17
• [4] Canan Aksu Canbay, Oktay Karaduman, Nihan Ünlü, Sivar Aziz Baiz, Iskender Ozkul, Heat treatment and quenching media effects on the thermodynamical, thermoelastical and structural characteristics of a new Cu-based quaternary shape memory alloy. Composites Part B 174 (2019) 106940 1-10
• [5] Semra Ergen, Orhan Uzun, Fikret Yilmaz, M. Fatih Kiliçaslan, Shape memory properties and microstructural evolution of rapidly solidified CuAlBe alloys. Materials Characterization 80 (2013)92–97
• [6] S. Pourkhorshidi , N. Parvin , M.S. Kenevisi , M. Naeimi , H. Ebrahimnia Khaniki, A study on the microstructure and properties of Cu-based shape memory alloy produced by hot extrusion of mechanically alloyed powders. Materials Science & Engineering A 556 (2012) 658–663.
• [7] Nishiyama, Z., (1978). Martensitic Transformation Academic Press, Newyork
• [8] Funakubo, H., (1987). Shape Memory Alloys., J.B.Kennedy, Garden and Breach Science Publishers, London.
• [9] Canan Aksu Canbay, Tercan Polat, Thermal and structural alternations in CuAlMnNi shape memory alloy by the effect of different pressure applications. Physica B 521 (2017) 331–338
• [10] Delaey, L., Krishnan, R.V., Tas, H. ve Warlimont, H., (1974). Thermoelasticity, Pseudoelasticity and the Memory Effects associated with Martensitic Transformations, Part1, Journal Of Materials Science, 9 1521-1535
• [11] Tautzenberger, P., (1990). Termal Actuartors; A Comparison of Shape Memory Alloys with Termoelastic Bimetals and Wax Actuotors Engineering Aspects of Shape Memory Alloys Edited By Duering, T. W., Melton, K. N., Stöckel, D.,Wayman, CMS Butter Worth - Heinemann Ltd. p.3
• [12] Wu,M.H.,(1990) Cu-Based Shape Memory Alloys Engineering Aspects of Shape Memory Alloys Edited By Duering, T. W., Melton, K.N., Stöckel, D., Wayman, CMS Butter worth - Heinemann Ltd. p.3
• [13] ޸.N. Balo, M. Ceylan, M. Aksoy, Effects of deformation on the microstructure of a Cu-Al-Be shape memory alloy Materials Science and Engineering A311 (2001) 151–156
• [14] Ş.Nevin Balo, Neslihan Sel, Effects of thermal aging on transformation temperatures and some physical parameters of Cu–13.5 wt.%Al–4 wt.%Ni shape memory alloy Thermochimica Acta 536 (2012) 1–5
• [15] Aydın C, El-Nasser HM, Yakuphanoglu F, Yahiya IS, and Aksoy M, J Alloys Compd 509 (2011) p 854.
• [16] Degeratu S, Rotaru P, Rizescu S, and Bizdoaca NG, J. Therm Anal Calorim 111 (2013) p 1255. Tanyıldızı E, Orhan A. An introduction to variable and feature selection. Comput Appl Eeng Educ 2009; 17(2): 187-195.