|Corrosion mechanism of an Al-BN abradable seal coating system in chloride solution|
|B. Lei; M. Li; Z. X. Zhao; L. Wang; Y. Li; F. H. Wang
|Source Publication||Corrosion Science
|Abstract||The corrosion mechanism of an Aluminum-Boron Nitride (Al-BN) abradable coating system (with NiAl bond layer and 0Cr17Ni4Cu4Nb substrate) in chloride solution has been investigated by potentiodynamic polarization and volumetric tests. Galvanic interaction of the coating system during corrosion has been confirmed. Upon coupling, the Al-BN layer assumes anodic character, while the bond NiAl and substrate act as cathodes. Spontaneous pitting is aroused. on the Al matrix of the Al-BN layer due to the galvanic interaction. The Negative difference effect (NDE) of the Al-BN has been discussed. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.|
; li, man
; li, ying
; wang, fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china. [zhao, zhongxing
; wang, lu] liming aeroengine grp corp, shenyang 110016, peoples r china.
; li, y (reprint author), chinese acad sci, inst met res, state key lab corros & protect, 62 wencui rd, shenyang 110016, peoples r china.
B. Lei,M. Li,Z. X. Zhao,et al. Corrosion mechanism of an Al-BN abradable seal coating system in chloride solution[J]. Corrosion Science,2014,79:198-205.
B. Lei,M. Li,Z. X. Zhao,L. Wang,Y. Li,&F. H. Wang.(2014).Corrosion mechanism of an Al-BN abradable seal coating system in chloride solution.Corrosion Science,79,198-205.
B. Lei,et al."Corrosion mechanism of an Al-BN abradable seal coating system in chloride solution".Corrosion Science 79(2014):198-205.
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