Ni21Cr11Al2.5Y1Co COMPOSITE COATED CARBON STEEL TESTED IN GEOTHERMAL CONDITIONS

Ni21Cr11Al2.5Y1Co COMPOSITE COATED CARBON STEEL TESTED IN GEOTHERMAL CONDITIONS

This study aims to review in situ corrosion tests and evaluated some characteristics of complex composite layers based on powders Ni21Cr11Al2.5Y1Co with 3%WC. These powders presenting agglomerate WC man-sized cluster particles and are used as an option for coating geothermal carbon steel omponents...

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Bibliographic Details
Main Authors: Aurelian BUZAIANU, Sigrun KARLSDOTTIR, Kolbrun RAGNARSDOTTIR, Helen HARALDSDOTTIR, Saemundur GUDLAUGSSON, Petra MOTOIU, Ioana CSAKI
Format: Article
Language:English
Published: Politehnium Publishing House 2017-06-01
Series:European Journal of Materials Science and Engineering
Subjects:
multi-layer composite
powder plasma deposition
geothermal power plants.
Online Access:http://ejmse.tuiasi.ro/articles/EJMSE_02_02-3_04_Buzaianu.pdf
Description
Summary:This study aims to review in situ corrosion tests and evaluated some characteristics of complex composite layers based on powders Ni21Cr11Al2.5Y1Co with 3%WC. These powders presenting agglomerate WC man-sized cluster particles and are used as an option for coating geothermal carbon steel omponents to prevent extensive erosion-corrosion fen omen. The powders are used to protect steel components by multilayer thermal spraying HVOF deposition. The experimental procedure involved obtaining X-ray diffraction patterns of the specimens, profilometry images of erosion-corrosion tests and SEM investigation to provide detailed information about adhesion of protective layers and morphological modifications.
ISSN:2537-4338
2537-4346

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