S.N .Ma
,
Q.Liu and C.Q. Li Surface Engineering Research Institute of CMES
,
Beijing 100072
,
China
金属学报(英文版)
According to the working condition of boiler tubes of power station, hot corrosion tests were carried out at two temperatures (650℃ and 800℃) to simulate the environment of coal fired boiler. The hot corrosion resistance and mechanism of three arc spraying coatings (SL30, 45CT and FeCrAl) have been studied. The result showed that coating SL30 and 45CT have a better protection ability against hot corrosion. It indicated that a protective Cr 2O 3 scale formed on the surface of coating SL30 and coating 45CT.
关键词:
arc spraying
,
null
,
null
Y.L.Zhu
,
S.N.Ma
,
C.H.Yang and R.F.Fu Surface Engineering Research Inst.
,
CMES
,
Beijing 100072
,
China
金属学报(英文版)
Cored wires for electric arc spraying of Al/Al 2 O 3 MMC coatings were developed, with Al 2 O 3 powder as the core material and commercial aluminium strip as the retaining sheath. The bond strength, Al 2 O 3 content, microstructure, micro-hardness and wear resistance of coatings produced by arc spraying of the cored wires were experimentally investigated and were compared with those of pure aluminum coating.
关键词:
Al 2 O 3
,
null
,
null
,
null
,
null
