Electrochemical Evaluation of Hydroxyapatite/ZrN Coated Magnesium Biodegradable Alloy in Ringer Solution as a Simulated Body Fluid

محورهای موضوعی :

Seyed Rahim Kiahosseini ¹ (Department of Materials Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran)
Abdollah Afshar ² (Department of Materials Engineering, Sharif University of Technology, Tehran, Iran)
Majid Mojtahedzadeh Larijani ³ (Agriculture Medical and Industrial Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran)
Mardali Yousefpour ⁴ (Department of Materials Science and Engineering, Semnan University, Semnan, Iran)

تاریخ دریافت : 1393/11/26 تاریخ پذیرش : 1397/08/07 تاریخ انتشار : 1397/08/07

کلید واژه: Biodegradable alloy Corrosion Hydroxyapatite Sputtering,

چکیده مقاله :

Magnesium alloys as biodegradable materials can be used in body as an implant materials but since they have poor corrosion resistance, it is required to decrease their corrosion rate by biocompatible coatings. In this study, hydroxyapatite (HA) coatings in the presence of an intermediate layer of ZrN as a biocompatible material, deposited on AZ91 magnesium alloy by ion beam sputtering method at 300 °C temperature and at different times 180, 240, 300, 360 and 420 min. Then changes in corrosion resistance of samples in Ringer's solution as a solution similar to the human body was evaluated in two ways, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). To investigate the causes of the destruction of the samples, the surface of samples was studied by scanning electron microscopy (SEM). The results showed that because of porous coatings created, the corrosion potential of the samples was about +55mV higher than the uncoated substrate that by changing the deposition time, was not observed the significant change But with increasing deposition time to 360 min, corrosion current decreased which represents an increase of corrosion resistance of magnesium alloy in body solution. However, a further increase in deposition time to 420 min, due to increase thickness and stress in the layer, the corrosion resistance of the samples was reduced. The results of the EIS confirm the corrosion behavior of the polarization method, too.   

منابع و مأخذ:

1. Altun H., Sinici H., 2008. Corrosion behaviour of magnesium alloys coated with TiN by cathodic arc deposition in NaCl and Na2SO4 solutions. Mater Charact. 59, 266 ââ‚‌“ 270.
2. Guo-Song W., Ai-Ying W., Ke-Jia D., Cai-Yun X., Wei D., Ai-Jiao X., 2008. Fabrication of Cr coating on AZ31 magnesium alloy by magnetron sputtering. Trans of Nonferrous Met Soc of China. 18, 329-333.
3. Wen C., Guan S., Peng L., Ren C., Wang X., Hu Z., 2009. Characterization and degradation behavior of AZ31 alloy surface modified by bone-like hydroxyapatite for implant applications. Applied Surface Science. 255, 6433ââ‚‌“6438.
4. Wen C., Guan S., Peng L., Ren C., Wang X., Hu Z., 2009. Characterization and degradation behavior of AZ31 alloy surface modified by bone-like hydroxyapatite for implant applications. Appl Surf Sci. 255, 6433ââ‚‌“6438.
5. Altun H., Sen S., 2005. The effect of DC magnetron sputtering AlN coatings on the corrosion behaviour of magnesium alloys. Surf Coat Technol. 197, 193ââ‚‌“ 200.
6. Li H., Li Z.X., Li H., Wu Y.Z., Wei Q., 2009. Characterization of plasma sprayed hydroxyapatite/ZrO2 graded coating. Materials and Design. 30, 3920ââ‚‌“3924.
7. Yuan Q., Golden T. D., 2009. Electrochemical study of hydroxyapatite coatings on stainless steel substrates. Thin Solid Films. 518, 55ââ‚‌“60.
8. Leo´n B., Jansen A., eds., Thin Calcium Phosphate Coatings for Medical Implants. Springer. New York, 2009.
9. Yousefpour M., Afshar A., Yang X., Li X., Yang B., Wu Y., Chen J., Zhang X., 2006. Nano-crystalline growth of electrochemically deposited apatite coating on pure titanium. J Electroanal Chem. 589, 96ââ‚‌“105.
10. Yan Z.C., Cheng Z.R., Long L.C., Cheng G.J., 2010. Comparison of calsium phosphate coating on Mg-Al and Mg-Ca alloy and their corrosion behavior in Hankââ‚‌™s solution. Surf Coat Technol. 24, 3636-3640.
11. Jiménez H., Restrepo E., Devia A., 2006. Effect of the substrate temperature in ZrN coatings grown by the pulsed arc technique studied by XRD. Surf Coat Technol. 201, 1594ââ‚‌“1601.
12. Javidi M., Javadpour S., Bahrololoom M.E., Ma J., 2008. Electrophoretic deposition of natural hydroxyapatite on medical grade 316L stainless steel. Mat Sci Engin. 28, 1509-1515.
13. Socola G., Macoveib A. M., Miroiua F., Stefana N., Dutaa L., Dorciomana G., Mihailescua I.N., Petrescub S.M., Stanc G.E., Marcovc D.A., Chiriacd A., Poeata I., 2010. Hydroxyapatite thin films synthesized by pulsed laser deposition and magnetron sputtering on PMMA substrates for medical applications. Mat Sci Engin B. 169, 159ââ‚‌“168.
14. Song L., Gan L., Xiao Y.F., Wu Y., Wu F., Gu Z.W., 2011. Antibacterial hydroxyapatite/chitosan complex coatings with superior osteoblastic cell response. Materials Letters. 65, 974ââ‚‌“977.
15. Huang J.H., Ouyang F.Y., Yu G.P., 2007. Effect of film thickness and Ti interlayer on the structure and properties of nanocrystalline TiN thin films on AISI D2 steel. Surf Coat Technol. 201, 7043ââ‚‌“7053.
16. Chou W.J., Yu G.P., Huang J.H., 2001. Corrosion behavior of TiN-coated 304 stainless steel. Corrosion Science. 43, 2023-2035.
17. Sun W., Nesic S., presented in part at the NACE InternationalCORROSION CONFERENCE AND EXPO. 2007, USA, 2007.
18. Jamesh M., Kumar S., Narayanan T.S.N.S., 2012. Electrodeposition of hydroxyapatite coating on magnesium for biomedical applications. J Coatings Technol Res. 9(4), 495ââ‚‌“502.
19. Rout T.K., 2007. Electrochemical impedance spectroscopy study on multi-layered coated steel sheets. Corrosion Science. 49, 794ââ‚‌“817.
20. Roland T., Pelletier H., Krier J., 2013. Scratch resistance and electrochemical corrosion behavior of hydroxyapatite coatings on Ti6Al4V in simulated physiological media. J Appl Electrochem. 43, 53ââ‚‌“63.