NiMnSn Manyetik Şekil Hatırlamalı Alaşımının Mikro Kristal Yapısı ve Termomanyetik Davranışı Üzerindeki Gd Etkisi

Yıl 2024, Cilt: 19 Sayı: 1, 65 - 72, 28.03.2024

Ecem Özen Öner , Mediha Kök

https://doi.org/10.55525/tjst.1326919

Öz

Bu çalışmada, manyetik şekil hatırlamalı alaşımlarının artan popülaritesi ile NiMnGa alaşım grubuna bir alternatif olan NiMnSn alaşımına nadir toprak gadolinyum (Gd) elemanı ilave edildi. Son yıllarda nadir toprak unsurları ülkemiz için stratejik bir öneme sahip olduğundan, bu çalışmada Gd element tercih edilmiştir. Kristal yapının morfolojik özelliklerini ve alaşımların mikro yapısını belirlemek için X-ışınları ve SEM-EDX analizi yapıldı. Alaşımların manyetik ölçümleri fiziksel özellik ölçüm cihazı ile yapılmıştır ve mıknatıslanma değerlerinin Gd ilavesiyle azaldığı belirlenmiştir.

Anahtar Kelimeler

Manyetik şekil hatırlamalı alaşım, Akıllı malzemeler, Nadir toprak elementleri, Gadolinyum

Proje Numarası

ADEP.23.02

Gd Effect on Micro-Crystal Structure and Thermomagnetic Behavior of NiMnSn Magnetic Shape Memory Alloy

Öz

In this study, the rare earth Gadolinium (Gd) element was added to the NiMnSn alloy, which is an alternative to the NiMnGa alloy group, with the increasing popularity of magnetic shape memory alloys. Since rare earth elements have strategic importance for our country in recent years, Gd element has been preferred in this study. X-rays and SEM-EDX analysis were performed to determine the morphological properties of the crystal structure and microstructure of the alloys. Magnetic measurements of the alloys were made with the physical property measuring device and it was determined that the magnetization values decreased with the addition of Gd.

Anahtar Kelimeler

Magnetic shape memory alloy, Smart materials, Rare earth element, Gadolinium

Destekleyen Kurum

fırat üniversitesi bilimsel araştırmalar projeleri

Proje Numarası

ADEP.23.02

Teşekkür

Research Universities Support Program of Fırat University

Kaynakça

• Otsuka K and Wayman CM. Shape memory materials. Cambridge university press; 1999.
• Castillo-Villa PO, Mañosa L, Planes A, Soto-Parra DE, Sánchez-Llamazares JL, Flores-Zúñiga H and Frontera C. Elastocaloric and magnetocaloric effects in Ni-Mn-Sn (Cu) shape-memory alloy. Journal of Applied Physics 113 (2013); 053506.
• Wayman C. Some applications of shape-memory alloys. Jom 32 (1980); 129.
• Lagoudas DC. Shape memory alloys: modeling and engineering applications. Springer 2008.
• Addington M and Schodek D. Smart materials and technologies. Archit. Urbanism 5 (2005); 8.
• Milleret A. 4D printing of Ni–Mn–Ga magnetic shape memory alloys: a review. Materials Science and Technology 38 (2022); 593.
• Qader İN, Mediha K, Dagdelen F and Aydogdu Y. A review of smart materials: researches and applications. El-Cezeri 6 (2019); 755.
• Cai W, Meng X and Zhao L. Recent development of TiNi-based shape memory alloys. Current Opinion in Solid State and Materials Science 9 (2005); 296.
• Dhaka R, D’Souza S, Maniraj M, Chakrabarti A, Schlagel D, Lograsso T and Barman S. Photoemission study of the (1 0 0) surface of Ni2MnGa and Mn2NiGa ferromagnetic shape memory alloys. Surface Science 603 (2009); 1999.
• Murakami Y, Shindo D, Oikawa K, Kainuma R and Ishida K. Magnetic domain structures in Co–Ni–Al shape memory alloys studied by Lorentz microscopy and electron holography. Acta materialia 50 (2002); 2173.
• Blomqvist L, Nordberg GF, Nurchi VM and Aaseth JO. Gadolinium in Medical Imaging—Usefulness, Toxic Reactions and Possible Countermeasures—A Review. Biomolecules 12 (2022); 742.
• Tian X, Shi D, Zhang K, Li H, Zhou L, Ma T, Wang C, Wen Q and Tan C. Machine-learning model for prediction of martensitic transformation temperature in NiMnSn-based ferromagnetic shape memory alloys. Computational Materials Science 215 (2022); 111811.
• Bahl CRH and Nielsen KK. The effect of demagnetization on the magnetocaloric properties of gadolinium. Journal of Applied Physics 105 (2009); 013916.
• Öner E and Kök M. Evaluation of thermal, electrical and magnetic properties of NiMnSnGd shape memory alloys by changing Gd amount for keeping the tin ratio constant. The European Physical Journal Plus 136 (2021); 463.
• Deniz CZ and Kök M. Investigation of the thermal and microstructural changes of CuAlNiNb quaternary shape memory alloys by different niobium amount. The European Physical Journal Plus 133 (2018); 288.
• Xing C, Zhang H, Long K, Xiao Y, Zhang H, Qiu Z, He D, Liu X, Zhang Y and Long Y. The effect of different atomic substitution at Mn site on magnetocaloric effect in Ni50Mn35Co2Sn13 alloy. Crystals 8 (2018); 329.
• Pathak AK, Dubenko I, Stadler S and Ali N. The effect of partial substitution of In by Si on the phase transitions and respective magnetic entropy changes of Ni50Mn35In15 Heusler alloy. Journal of Physics D: Applied Physics 41 (2008); 202004.
• Sun H, Jing C, Zeng H, Su Y, Yang S, Zhang Y, Bachagha T, Zhou T, Hou L and Ren W. Martensitic Transformation, Magnetic and Mechanical Characteristics in Unidirectional Ni–Mn–Sn Heusler Alloy. Magnetochemistry 8 (2022); 136.
• Kök M, Qader IN, Mohammed SS, Öner E, Dağdelen F and Aydogdu Y. Thermal stability and some thermodynamics analysis of heat treated quaternary CuAlNiTa shape memory alloy. Mater Res Express 7 (2019); 015702.
• Qader IN, Kök M and Dağdelen F. Effect of heat treatment on thermodynamics parameters, crystal and microstructure of (Cu-Al-Ni-Hf) shape memory alloy. Physica B: Condensed Matter 553 (2019); 1.
• Saini D, Singh S, Banerjee M and Sachdev K. Structural Transformation and Hysteresis Behaviour of Ni46Cu4Mn45Sn5 Alloy Synthesized by Ball Milling Method. Macromolecular Symposia 2017; 1700015.