Effect of carbon interlayer on protective properties of hydroxyapatite coating deposited on 316L stainless steel by sol-gel method

被引：0
作者：
B. Pietrzyk
J. Gawronski
T. Blaszczyk
机构：
[1] Technical University of Lodz,Institute of Materials Science and Engineering
[2] Technical University of Lodz,Department of Materials Engineering and Production Systems
[3] University of Lodz,Department of General and Inorganic Chemistry
来源：
Powder Metallurgy and Metal Ceramics | 2010年 / 49卷
关键词：
sol–gel method; hydroxyapatite; stainless steel; coating;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Good-quality bilayer coatings with a carbon interlayer and outer carbonate hydroxyapatite layer are obtained on AISI 316L stainless steel substrate using RF PACVD and sol-gel methods. It is found that protective properties of both composite C/HAP coating and HAP coating depend on the temperature of heat treatment. Hydroxyapatite with a carbon interlayer coating annealed at 500°C significantly improves corrosion resistance of the stainless-steel substrate as well as of unary carbon and HAP coatings. The composite C/HAP coating annealed at 500°C exhibits better corrosion resistance in comparison with the HAP coating heated at the same temperature. Stainless-steel substrates with a HAP and C interlayer heated at 700°C have worse corrosion features in comparison with uncoated AISI 316L. The weak corrosion resistance of this sample is due to the formation of metal carbides at this temperature.
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页码：468 / 473
页数：5
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