Ti6Al4V 上搅拌电化学纳米晶羟基磷灰石（HA）涂层的腐蚀

Corrosion of Stirred Electrochemical Nano-Crystalline Hydroxyapatite (HA) Coatings on Ti6Al4V.

作者信息

Ramaswamy Narayanan, Gopalan Venkatachalam, Kwon Tae Yub

机构信息

School of Mechanical Engineering, VIT Chennai, Chennai 600 127, India.

Centre for Innovation and Product Development, VIT Chennai, Chennai 600 127, India.

出版信息

Materials (Basel). 2022 Dec 2;15(23):8609. doi: 10.3390/ma15238609.

DOI:10.3390/ma15238609

PMID:36500105

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9735767/

Abstract

Ti6Al4V substrates were electrochemically deposited with nano-crystalline hydroxyapatite (HA) from aqueous electrolytes. Cathodic HA coatings were obtained when the electrolyte was stirred using ultrasonic vibration. Two current densities of 20 mA/cm and 50 mA/cm were employed. Polarization and electrochemical impedance spectroscopy (EIS) were the techniques used to estimate the corrosion of coatings in simulated body fluid (SBF). The results indicate good corrosion resistance for the coating obtained at 50 mA/cm from ultrasonic stirring of the electrolyte.

摘要

采用电化学方法在Ti6Al4V基体上从水性电解质中沉积纳米晶羟基磷灰石（HA）。当使用超声振动搅拌电解质时，可获得阴极HA涂层。采用了20 mA/cm²和50 mA/cm²两种电流密度。极化和电化学阻抗谱（EIS）是用于评估涂层在模拟体液（SBF）中腐蚀情况的技术。结果表明，通过超声搅拌电解质，在50 mA/cm²下获得的涂层具有良好的耐腐蚀性。