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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 11    No. 4    August 2001

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Influence of microstructure and surface
condition on antifouling property of
90Cu-10Ni alloy in seawater
LIN Le-yun(林乐耘), WANG Xiao-hua(王晓华), ZHAO Yue-hong(赵月红)

General Research Institute for Nonferrous Metals, Beijing 100088, P.R.China

Abstract:Through the experiment of natural seawater exposure corrosion, the antifouling properties of the plate specimens of 90Cu-10Ni alloy were studied, which were processed by different deformations, annealing treatments and surface treatments. The results indicate that after exposure corrosion for half a year, the antifouling properties of the specimens are quite different. The specimens processed by suitable deformations, annealing treatment at 650℃ and pretreatment of surface film possess both good corrosion resistance and antifouling properties. However, the specimens processed by different deformations and annealing treatment at 450℃ possess lower corrosion resistance, although they are also treated by the pretreatment of surface film; their antifouling properties change with different deformations. The relationships among the corrosion morphology and microstructure with the antifouling property of 90Cu-10Ni alloy are observed under the scanning electron microscopy (SEM).

 

Key words: 90Cu-10Ni alloy; seawater corrosion; antifouling; deformation; annealing

ISSN 1672-7029
CN 43-1423/U

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