In vitro degradation and biomineralization ability of hydroxyapatite coated Mg-9Li-7Al-1Sn and Mg-9Li-5Al-3Sn-1Zn alloys
作者： Rita Maurya , Abdul Rahim Siddiqui , Kantesh Balani , None
DOI: 10.1016/J.SURFCOAT.2017.06.027
关键词:
摘要: Abstract A biocompatible hydroxyapatite (HA) coating has been deposited on novel Mg-9Li-7Al-1Sn (LAT971) and Mg-9Li-5Al-3Sn-1Zn (LATZ9531) alloys to control their corrosion rapid degradation. HA was applied by a simple two-step conversion process, where phosphate (PCC) is alkali treated form coating. ~ 34 μm ~ 26 μm thick observed LAT971 LATZ9531 alloys, respectively, phase analysis confirmed it be via X-ray diffraction technique. Potentiodynamic polarization test reveals that the HA-coated showed protection efficiency of 96% with lower rate 23 μm/y than uncoated one (525 μm/y). The alloy ~ 12% relatively 567 μm/y (647 μm/y). Moreover, resistance measured ~ 113 times 1.2 respectively. Electrochemical impedance spectroscopy (EIS) results degradation higher charge transfer for coated (3.91 MΩ·cm 2 ) (1.13 kΩ·cm (686 Ω·cm 204 Ω·cm , respectively). Immersion in simulated body fluid (SBF) revealed whereas limited biomineralization ability. Thus, ability meets specific requirement biodegradable implants load bearing applications.
sci-hub.se 参考文章(55)
Miguel Antonio Domínguez-Crespo, Silvia Beatriz Brachetti-Sibaja, Aidé Minerva Torres-Huerta, Wencel De La Cruz-Hernández, Rare Earth Conversion Coatings Grown on AA6061 Aluminum Alloys: Corrosion Studies Revista de la Sociedad Química de Mexico. ,vol. 58, pp. 393- 410 ,(2017) , 10.29356/JMCS.V58I4.48
Yingchao Su, Yanbo Lu, Yichang Su, Jiangjiang Hu, Jianshe Lian, Guangyu Li, Enhancing the corrosion resistance and surface bioactivity of a calcium-phosphate coating on a biodegradable AZ60 magnesium alloy via a simple fluorine post-treatment method RSC Advances. ,vol. 5, pp. 56001- 56010 ,(2015) , 10.1039/C5RA10315K
L. Kouisni, M. Azzi, M. Zertoubi, F. Dalard, S. Maximovitch, Phosphate coatings on magnesium alloy AM60 part 1: study of the formation and the growth of zinc phosphate films Surface and Coatings Technology. ,vol. 185, pp. 58- 67 ,(2004) , 10.1016/J.SURFCOAT.2003.10.061
Vinod Kumar, Govind, Rajiv Shekhar, R. Balasubramaniam, Kantesh Balani, Microstructure evolution and texture development in thermomechanically processed Mg–Li–Al based alloys Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 547, pp. 38- 50 ,(2012) , 10.1016/J.MSEA.2012.03.074
X.-B. Chen, N. Birbilis, T.B. Abbott, A simple route towards a hydroxyapatite–Mg(OH)2 conversion coating for magnesium Corrosion Science. ,vol. 53, pp. 2263- 2268 ,(2011) , 10.1016/J.CORSCI.2011.03.008
Yuncang Li, Cuie Wen, Dolly Mushahary, Ragamouni Sravanthi, Nemani Harishankar, Gopal Pande, Peter Hodgson, Mg-Zr-Sr alloys as biodegradable implant materials. Acta Biomaterialia. ,vol. 8, pp. 3177- 3188 ,(2012) , 10.1016/J.ACTBIO.2012.04.028
Vinod Kumar, Ankur Gupta, Debrupa Lahiri, Kantesh Balani, Serrated yielding during nanoindentation of thermomechanically processed novel Mg–9Li–7Al–1Sn and Mg–9Li–5Al–3Sn–1Zn alloys Journal of Physics D. ,vol. 46, pp. 145304- ,(2013) , 10.1088/0022-3727/46/14/145304
C. F. Dunne, J. Gibbons, D. P. FitzPatrick, K. J. Mulhall, K. T. Stanton, On the fate of particles liberated from hydroxyapatite coatings in vivo Irish Journal of Medical Science (1971 -). ,vol. 184, pp. 125- 133 ,(2015) , 10.1007/S11845-014-1243-8
G. L. Song, A. Atrens, Corrosion mechanisms of magnesium alloys Advanced Engineering Materials. ,vol. 1, pp. 11- 33 ,(1999) , 10.1002/(SICI)1527-2648(199909)1:1<11::AID-ADEM11>3.0.CO;2-N
Yingwei Song, Dayong Shan, Rongshi Chen, Fan Zhang, En-Hou Han, A novel phosphate conversion film on Mg–8.8Li alloy Surface & Coatings Technology. ,vol. 203, pp. 1107- 1113 ,(2009) , 10.1016/J.SURFCOAT.2008.10.004