Corrosion protection of AA6061-T4 alloy by sol-gel derived micro and nano-scale hydroxyapatite (HA) coating
Özet
Micron and nano-scale hydroxyapatite (HA) were coated successfully on AA6061-T4 substrates by sol-gel method. Besides, the effects of coating thickness on adhesion strength and corrosion behaviour of the coatings were studied. Corrosion resistance was measured by potentiodynamic polarization test using a potentiostat under in vitro conditions. The coatings before and after corrosion tests were characterized by adhesion tests, a scanning electron microscopy attached with EDS and X-ray diffraction analysis. The results revealed that all the coatings exhibit a passive behaviour in Ringer's solution. Specimens coated with nano-scale HA had the higher corrosion resistance than micro-scale coatings. The highest corrosion resistance appeared to be for the similar to 30 mu m nano-scale HA coated substrates. However, for micro-scale HA coatings, the highest adhesion resistance was obtained at similar to 30 mu m film thickness.
Atıf için künye
Sonmez, S., AKSAKAL, B., & Dikici, B. (2012). Corrosion protection of AA6061-T4 alloy by sol-gel derived micro and nano-scale hydroxyapatite (HA) coating. Journal of Sol-Gel Science and Technology, 63(3), 510–518. https://doi.org/10.1007/s10971-012-2813-8
BibTeX
@article{sonmez2012-196709,
author = {Sonmez, S. and AKSAKAL, Baki and Dikici, Burak},
title = {Corrosion protection of AA6061-T4 alloy by sol-gel derived micro and nano-scale hydroxyapatite (HA) coating},
journal = {Journal of Sol-Gel Science and Technology},
year = {2012},
volume = {63},
number = {3},
pages = {510--518},
issn = {0928-0707},
doi = {10.1007/s10971-012-2813-8},
url = {https://akademik.atauni.edu.tr/yayinlar/196709-corrosion-protection-of-aa6061-t4-alloy-by-sol-gel-derived-micro-and-nano-scale}
}