Synthesis and Erosion Behaviors of Nanoscale Coatings Prepared by Wire Arc Spraying

被引：0
|
作者：
Cheng, J. B. [1 ,2 ]
Xiang, X. B. [2 ]
Wang, Z. H. [1 ]
Xu, B. S. [2 ]
机构：
[1] Hohai Univ, Coll Mech & Mat, Nanjing 210098, Jiangsu, Peoples R China
[2] Natl Key Lab Remfg, Beijing 100072, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2012年 / 41卷
关键词：
coatings; nano materials; abrasive; THERMAL SPRAY; TEMPERATURES; VELOCITY; ALLOYS; STEEL;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of erosive parameters, such as impact angles and environment temperature, on erosion properties of FeBSiCrMnNb nanoscale coatings were investigated. A series of coatings were prepared by wire arc spraying process. The microstructure of the coating consists of amorphous and alpha (Fe,Cr) nanocrystalline phase. The nanocrystals with average size of 39 nm are homogenously dispersed in amorphous matrix. The erosion results reveal that the coating exhibits better erosion resistance at lower impact angle. The erosion rates of the coating decrease as function of environment temperature. The relatively erosion resistance of the nanoscale coating is 3.7 times higher than that of AISI1045 steel substrate at 650 degrees C. The main failure mechanism of the coating is brittle fracture.
引用
收藏
页码：144 / 147
页数：4
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