Effects of some parameters on corrosion behaviour of plasma-sprayed coatings

被引：48

作者：

Celik, E ^{[1
]}

Sengil, IA ^{[1
]}

Avci, E ^{[1
]}

机构：

[1] Sakarya Univ, Fac Engn, Dept Met Engn, Sakarya, Turkey

来源：

SURFACE & COATINGS TECHNOLOGY | 1997年 / 97卷 / 1-3期

关键词：

corrosion; plasma-sprayed coatings;

D O I：

10.1016/S0257-8972(97)00208-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

The corrosion behaviour of ceramics and cermet coatings on AISI 304L steel substrates was investigated in several aqueous solutions. Plasma spray process was employed on substrates with the deposition of ceramic and cermet powders such as Al2O3, Al2O3 + TiO2 and Cr2C3 + NiCr. The porosity of coatings was measured by an electrochemical technique. Potentiodynamic polarization measurements and corrosion tests were employed to determine the corrosion behaviour of plasma-sprayed coatings. The microstructures of powders and coatings were investigated by means of an optical microscope, SEM, and X-ray diffractometry. The obtained results show that the protection against corrosion depends strongly on the porosity, thickness, surface roughness of the coatings, corrosion media and rotating speed of samples. (C) 1997 Elsevier Science S.A.

引用

页码：355 / 360

页数：6

共 12 条

[1]

CORROSION CHARACTERISTICS OF SEVERAL THERMAL SPRAY CERMET-COATING ALLOY SYSTEMS [J].