Mechanical and microstructural properties of HVOF sprayed WC-Co and Cr3C2-NiCr coatings on the boiler tube steels using LPG as the fuel gas

被引：88

作者：

Sidhu, HS

Sidhu, BS

Prakash, S

机构：

[1] Yadvindra Coll Engn, Dept Engn Mech, Bathinda 151302, Punjab, India

[2] GZS Coll Engn & Technol, Dept Mech Engn, Bathinda 151001, Punjab, India

[3] Indian Inst Technol, Dept Met & Mat Engn, Roorkee 247667, Uttar Pradesh, India

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2006年 / 171卷 / 01期

关键词：

Cr3C2-NiCr; LPG; fuel gas;

D O I：

10.1016/j.jmatprotec.2005.06.058

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The characteristics and the phase composition of high velocity oxy fuel (HVOF) sprayed WC-Co and Cr3C2-NiCr coatings applied onto boiler tube steel substrates using liquid petroleum gas (LPG) as the fuel gas, have been evaluated. The coatings were examined using metallography, SEM/EDAX and XRD techniques. An attempt has been made to describe the transformations that take place during HVOF spraying. The purpose of this study was to compare the microstructure, porosity, surface roughness and microhardness of HVOF sprayed WC-Co, Cr3C2-NiCr coatings deposited on boiler steels. The paper will also investigate if there is an application of the deposit in energy generation plants with a view to enhance the life of the component and reduce tube failures in such power plants. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：77 / 82

页数：6

共 29 条

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