Corrosion behaviour of single and double layer hydroxyapatite coatings on 316L stainless steel by plasma spray

被引：0

作者：

Yusuf Kayali

Osman Aslan

Muhammet Karabaş

Şükrü Talaş

机构：

[1] Afyon Kocatepe University,Faculty of Technology, Department of Metallurgical and Materials Engineering

[2] İstanbul Technical University,Faculty of Metallurgy

来源：

Protection of Metals and Physical Chemistry of Surfaces | 2016年 / 52卷

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学科分类号：

摘要：

AISI316L stainless steel is extensively used in orthopedic and dental applications. However, this alloy exhibits low integration behaviour when it comes in contact with surrounding bone tissue and implant healing duration can be as much as few months. The aim of this study is the fabrication of biocompatible hydroxyapatite (HA) coatings on stainless steel substrate in order to accelerate the process of osseointegration of implants. The biocompatible single layer of Titania (TiO2), Hydroxyapatite and bi-layer TiO2/HA coatings were deposited by atmospheric plasma spray on 316L stainless steel. Coated and uncoated stainless steel specimens were incubated in simulated body fluids and 0.9% NaCl solutions for 1h and 7 days. In vitro electrochemical-corrosion evaluation of coated and uncoated stainless steel specimens have been investigated by Tafel extrapolation and linear polarization methods. Results indicates that corrosion resistance of single layer HA coated stainless steel specimens are superior to single layer TiO2 and bi-layer HA/TiO2 coated stainless steel specimens.

引用

页码：1079 / 1085

页数：6

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