High-Temperature Erosion Behavior of High-Velocity Arc-Spraying FeMnCr/Cr3C2 Coatings

被引:0
|
作者
Luo Laima [1 ]
Liu Shaoguang [2 ]
Yu Jia
Zhao Qi [3 ]
Sun Nairong [3 ]
Li Jian
机构
[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
[2] Wenzhou Cadre New Special Mat CO LTD, Wenzhou 325029, Peoples R China
[3] Jiangsu Univ Sci & Technol, Zhenjiang 212003, Peoples R China
关键词
FeMnCr/Cr3C2 cored wire; high-velocity arc spraying; high-temperature erosion resistance;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
FeMnCr/Cr3C2 cored wire was developed for building up the erosion-resistant coatings of super-critical boiler pipes by means of High-Velocity Arc Spraying. The high-temperature erosion behaviors at different impact angles of FeMnCr/Cr3C2 coatings were studied and compared with those of FeCrNi/Cr3C2 coatings and 20 steel by optical microscopy, scanning electron microscopy and energy dispersion spectrum analysis. Results show that FeMnCr/Cr3C2 coatings have the maximum erosive rate when the impact angle is about 60 degrees due to the semi-brittleness erosion mechanism for FeMnCr/Cr3C2 coatings. The erosion resistance of FeMnCr/Cr3C2 coatings is closed to that of FcCrNi/Cr3C2 coatings, and obviously better than that of 20 steel.
引用
收藏
页码:234 / 237
页数:4
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