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Improving of the surface properties of NiTiCu shape memory alloy by oxidation

Year 2017, Volume: 6 Issue: 1, 1 - 5, 01.03.2017

Abstract

NiTi and NiTi-based shape memory alloys are so often used in medical applications to show that thermoelastic martensitic transformation. The major disadvantage of these alloys although advantageous, is the element nickel in the alloy. Alloy used as implants in the body, nickel element may be harmful to the body by mingling blood. Many methods have been applied to eliminate this detrimental effect. One of these methods is to create a barrier oxide by oxidizing the surface of the alloy. Therefore, at 800, 900 and 1000 °C temperature, the oxidation process was applied on NiTiCu shape memory alloy which transforms at body temperature. After this oxidation process results, the oxidation rate constants for oxidation of indicator were increased. As a result of the SEM-EDX measurements, Nickel was found to be minimal on the surface of alloy. The Changes occurring in the transition temperature of the alloy subjected to the oxidation process were measured by Differential Scanning Calorimetry DSC . The ideal transformation was observed in alloys oxidized at 900 °C

References

  • 1. Kaczmarek M., Corrosion resistance of NİTİ alloy in simulated body fluids, Archives of Materials Science and Engineering, 28,(2007),269-272
  • 2. Lethabena M.L., Olubambi P.A., Chikwanda H.K., Corrosion behaviour of sintered TiNiCuNb in 0,9 % NaCl enviroment, J. Materials Research Technology (2015),1-10
  • 3. Mareci D.,Chelariu R.,Cailean A. and Sutiman D.,Electrochemical characterization of Nİ Tİ Nb shape memory alloy in artificial saliva,Materials and Corrosion(2012), 63(9),807-812
  • 4. Zeng Z.Y., Hu C.E., Cai L.C., Chen X.R.,. Jing F.Q, First Principles Determination of the Structure, Elastic Constant, Phase Diagram and Thermodynamics of NiTi Alloy, Pysica B, 405 (2010) 3665-3672
  • 5. Carroll Wİ.M., Kelly M.J., Corrosion behavior of nitinol wires in body fluid environments, Biomed Mater Res 67A,(2003),1123-1130
  • 6. Li P., Wu G., Xu R., Wang W., Wu S., Weng W.K.,Chu P.K., In vitro corrosion inhibition on biomedical shape memory by plasma-polymerized allykamine film, Materials letters (2012), 89, 51-54
  • 7. Hansen A. W., Führ L.T., Antonini L.M., Villarinho D.J.,Marino C.E.B., Malfatti C.F., The electrochemical behavior of the NiTi alloy in different simulated body fluids, Materials research (2015) 18 (1), 184-190
  • 8. Bahraminasab M. and Sahari B.B., NİTİ Shape Memory Alloys, Promising Materials in Orthopedic Applications,http://dx.doi.org/10.5772/52228
  • 9. Es-souni M., Es-souni M., Brandies H.F., On the transformation behaviour, mechanical properties and biocompability of two NiTi based shape memory alloys:NiTi42 and NiTi42Cu7, Biometarials, (2001), 22, 2153-2161
  • 10. Kok M., Pirge G., Aydogdu Y., Isothermal Oxidation Study on NiMnGa Ferromagnetic Shape Memory Alloy at 600- 1000 °C, Applied Surface Science (2013), 268 ,136-140
  • 11. Kok M., Yildiz K., Oxidation parameters determination of Cu-Al-Ni-Fe shape-memory alloy at high temperatures, Applied Physics A: Materials Science And Processing, 116 (4), 2045-2050,2014
  • 12. http://www.nobelprize.org/nobel_prizes/chemistry/ laureates/1992/illpres/oxidation.html
  • 13. Aboutalebi M.R., Karimzadeh M., Salehi M.T., Abbasi S.M., Morakabati M., Influences of aging and thermomechanical treatments on the martensitic transformation and superelasticity of highly Ni-rich Ti-51.5 at.% Ni shape memory alloy, Thermochimica Acta, 616 14–19,2015

NiTiCu Şekil hatırlamalı Alaşımın Oksidasyon ile yüzey Özelliklerinin Geliştirilmesi

Year 2017, Volume: 6 Issue: 1, 1 - 5, 01.03.2017

Abstract

NiTi ve NiTi bazlı şekil hatırlamalı alaşımlar termoelastik martenzitik dönüşüm gösterdiği için medikal uygulamalarda sıklıkla kullanılırlar. Bu alaşımlar avantajlı olmasına rağmen en önemli dezavantajı, alaşım içindeki Nikel elementidir. Vücut içinde implant olarak kullanılan alaşımda, Nikel elementi kana karışarak vücuda zaralı olabilir. Bu zararlı etkiyi yok etmek için birçok yöntem uygulanmıştır. Bu yöntemlerden biri alaşımının oksitleyerek yüzeyinde oksit bir bariyer oluşturmaktır. Bu nedenle Vücut sıcaklığında dönüşüm veren NiTiCu şekil hatırlamalı alaşıma 800, 900 ve 1000 °C de oksidasyon işlemi uygulanmıştır. Bu oksidasyon işlemi sonucu, oksitlenme hızını göstergesi olan oksidasyon sabiti değerinin sıcaklık artıkça artığı görülmüştür. Alaşımların SEM-EDX ölçümleri sonucunda yüzeyinde Nikel elementinin çok az olduğu görüldü. Oksidasyon işlemine tabi tutulan alaşımların dönüşüm sıcaklığında meydana gelen değişim Diferansiyel Taramalı Kalorimetre DSC ile ölçüldü. En ideal dönüşüm 900 °C de oksitlenen alaşımda görüldü

References

  • 1. Kaczmarek M., Corrosion resistance of NİTİ alloy in simulated body fluids, Archives of Materials Science and Engineering, 28,(2007),269-272
  • 2. Lethabena M.L., Olubambi P.A., Chikwanda H.K., Corrosion behaviour of sintered TiNiCuNb in 0,9 % NaCl enviroment, J. Materials Research Technology (2015),1-10
  • 3. Mareci D.,Chelariu R.,Cailean A. and Sutiman D.,Electrochemical characterization of Nİ Tİ Nb shape memory alloy in artificial saliva,Materials and Corrosion(2012), 63(9),807-812
  • 4. Zeng Z.Y., Hu C.E., Cai L.C., Chen X.R.,. Jing F.Q, First Principles Determination of the Structure, Elastic Constant, Phase Diagram and Thermodynamics of NiTi Alloy, Pysica B, 405 (2010) 3665-3672
  • 5. Carroll Wİ.M., Kelly M.J., Corrosion behavior of nitinol wires in body fluid environments, Biomed Mater Res 67A,(2003),1123-1130
  • 6. Li P., Wu G., Xu R., Wang W., Wu S., Weng W.K.,Chu P.K., In vitro corrosion inhibition on biomedical shape memory by plasma-polymerized allykamine film, Materials letters (2012), 89, 51-54
  • 7. Hansen A. W., Führ L.T., Antonini L.M., Villarinho D.J.,Marino C.E.B., Malfatti C.F., The electrochemical behavior of the NiTi alloy in different simulated body fluids, Materials research (2015) 18 (1), 184-190
  • 8. Bahraminasab M. and Sahari B.B., NİTİ Shape Memory Alloys, Promising Materials in Orthopedic Applications,http://dx.doi.org/10.5772/52228
  • 9. Es-souni M., Es-souni M., Brandies H.F., On the transformation behaviour, mechanical properties and biocompability of two NiTi based shape memory alloys:NiTi42 and NiTi42Cu7, Biometarials, (2001), 22, 2153-2161
  • 10. Kok M., Pirge G., Aydogdu Y., Isothermal Oxidation Study on NiMnGa Ferromagnetic Shape Memory Alloy at 600- 1000 °C, Applied Surface Science (2013), 268 ,136-140
  • 11. Kok M., Yildiz K., Oxidation parameters determination of Cu-Al-Ni-Fe shape-memory alloy at high temperatures, Applied Physics A: Materials Science And Processing, 116 (4), 2045-2050,2014
  • 12. http://www.nobelprize.org/nobel_prizes/chemistry/ laureates/1992/illpres/oxidation.html
  • 13. Aboutalebi M.R., Karimzadeh M., Salehi M.T., Abbasi S.M., Morakabati M., Influences of aging and thermomechanical treatments on the martensitic transformation and superelasticity of highly Ni-rich Ti-51.5 at.% Ni shape memory alloy, Thermochimica Acta, 616 14–19,2015
There are 13 citations in total.

Details

Primary Language Turkish
Journal Section Research Article
Authors

Mediha Kök This is me

Yıldırım Aydoğdu This is me

Fethi Dağdelen This is me

Gonca Ateş

Publication Date March 1, 2017
Published in Issue Year 2017 Volume: 6 Issue: 1

Cite

IEEE M. Kök, Y. Aydoğdu, F. Dağdelen, and G. Ateş, “NiTiCu Şekil hatırlamalı Alaşımın Oksidasyon ile yüzey Özelliklerinin Geliştirilmesi”, DUFED, vol. 6, no. 1, pp. 1–5, 2017.


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