CORROSION PROPERTIES OF CERMET COATINGS SPRAYED BY HIGH-VELOCITY OXYGEN-FUEL

被引：0

作者：

Utu, Dragos ^{[1
]}

Hulka, Iosif ^{[1
]}

Serban, Viorel-Aurel ^{[1
]}

Filipescu, Hannelore ^{[1
]}

机构：

[1] Politech Univ Timisoara, Timisoara, Romania

来源：

NANOCON 2012, 4TH INTERNATIONAL CONFERENCE | 2012年

关键词：

cermet coating; HVOF spraying method; corrosion behavior; BEHAVIOR; EROSION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High velocity oxygen fuel (HVOF) is one of the most promising coatings deposition method used in many industrial applications as: aerospace, automation, transportation and power generation system. The paper presents the experimental results regarding the corrosion behavior of different sprayed cermet powders WC CoCr and WC CrC Ni deposited on disc-like C45 steel specimens tested in a NaCl aqueous solution. The powders and coatings morphology were analyzed by scanning electron microscopy (SEM), the phase's identification was performed by X-Ray diffraction technique (XRD). In order to evaluate the quality of the HVOF obtained coatings the porosity of the specimens was determined. The polarization curves were obtained using the potentiodynamic polarization testing method and a three electrode open cell. The results showed that the both coatings had a good corrosion behavior. However, the overall corrosion resistance of the WC-CrC-Ni coating was inferior to that of the WC-Co-Cr coating.

引用

页码：520 / 525

页数：6

共 5 条

[1] COMBINED EROSION AND CORROSION OF THERMAL SPRAYED WC AND CRC COATINGS [J].