Corrosion-wear behaviour of thermal sprayed nanostructured FeCu/WC-Co coatings

被引:53
作者
Basak, A. K. [1 ]
Matteazzi, P.
Vardavoulias, M.
Celis, J. -P.
机构
[1] Katholieke Univ Leuven, Dept MTM, B-3001 Louvain, Belgium
[2] CSGI, I-50100 Sesto Fiorentino, FI, Italy
[3] PyroGenesis SA, Lavrion 19500, Greece
关键词
nanostructured coatings; thermal spraying; tribo-corrosion; electrochemical noise;
D O I
10.1016/j.wear.2006.03.026
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The corrosion and corrosion-wear behaviour of a thermal sprayed nanostructured FeCu/WC-Co coating were investigated in a Hank's solution and compared to stainless steel AISI 304 and nanostructured WC-Co coatings. Electrochemical noise and potentiodynamic polarization measurements were conducted along with an ex situ scanning electron microscopy to unfold the response of these materials under these corrosive and corrosion-wear test conditions. The multiphase structure of the FeCu/WC-Co coating induces a complex corrosion behaviour. Under corrosion-wear conditions, the nanostructured FeCu/WC-Co coating exhibits a depassivation/repassivation behaviour comparable to the behaviour of stainless steel AISI 304 and nanostructured WC-Co coatings. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1042 / 1050
页数:9
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