Solid particle erosion of HVOF sprayed NiCr and Stellite-6 coatings

被引：73
|
作者：
Sidhu, Hazoor Singh
Sidhu, Buta Singh
Prakash, S.
机构：
[1] Punjabi Univ, Yadvindra Coll Engn, Dept Mech Engn, 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：
SURFACE & COATINGS TECHNOLOGY | 2007年 / 202卷 / 02期
关键词：
HVOF thermal spray process; erosion; NiCr and stellite-6 coating;
D O I：
10.1016/j.surfcoat.2007.05.035
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Solid particle erosion behavior of the HVOF deposited NiCr and Stellite-6, coatings on boiler tube steels was evaluated. The study was conducted, using an air jet erosion test rig at a velocity of 26 m/s and impingement angle of 30 degrees and 90 degrees, on uncoated as well as HVOF spray coated boiler tube steel (GrAl) at 250 degrees C. The coatings were harder as compared to substrate steel. Scanning electron microscopy (SEM) technique was used to analyse the eroded surface. Mass losses of the coatings were found marginally higher than the boiler tube steel. (c) 2007 Elsevier B.V All rights reserved.
引用
收藏
页码：232 / 238
页数：7
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