STUDY ON EROSION-CORROSION BEHAVIOR OF Cu-Ni ALLOY BFe30-1-1 IN FLOWING ARTIFICIAL SEAWATER

J Chin Soc Corr Pro

1999, Vol. 19

Issue (4): 207-213 DOI:

Research Report

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STUDY ON EROSION-CORROSION BEHAVIOR OF Cu-Ni ALLOY BFe30-1-1 IN FLOWING ARTIFICIAL SEAWATER

Fan Yang;;;

中科院金属所金属腐蚀与防护国家重点实验室

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Abstract The erosion-corrosion behavior of BFe30-1-1 in artificial seawater with different fluid velocities has been studied using rotating cylinder apparatus.The methods adopted in the experimental study included weight-loss test,linear and cycle polarization,free corrosion potential and EIS measurements as well as SEM observaton and EDX analysis.The results showed that the constant of linear polarization for corrosion reaction of BFe30-1-1 in artificial seawater increased with the increasing fluid velocity.Furthermore,the results of both cycle polarization and EIS neasurement showed that the critical fluid velocity of film breakdown for BFe30-1-1 in seawater was about 3m/s.In the lower frequency region of EIS,the capacitive loop disapeared and the inductive loop appeared when flow velocity increased from 2m/s to 3m/s.

Key words: erosion-corrosion BFe30-1-1 artificial seawater fluid velocity breakdown of film

Received: 27 October 1998

Corresponding Authors: Fan Yang

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Fan Yang. STUDY ON EROSION-CORROSION BEHAVIOR OF Cu-Ni ALLOY BFe30-1-1 IN FLOWING ARTIFICIAL SEAWATER. J Chin Soc Corr Pro, 1999, 19(4): 207-213 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1999/V19/I4/207

1　EfirdKD .Corrosion ,1 977,3 3 :3　
2　MacdonaldDD ,SyrettBD ,WingSS .Corrosion ,1 978,3 4:2 89　
3　SyrettBD ,WingSS .Corrosion ,1 980 ,3 6:73　
4　WoodRJK ,HuttonSP ,SchiffrinDJ.Corros.Sci.,1 990 ,3 0 :1 1 77　
5　王吉会 ,姜晓霞 ,李诗卓 .中国腐蚀与防护学报 ,1 997,1 7(2 ) :81　
6　Selmer-OlsenS ,etal.TheProc .ofInter.Conf.onMulti-Phase -Flow ,TheHague,Netherlands,1 987May ,1 8-2 0　
7　朱小龙 .哈尔滨工业大学博士论文 ,1 996,p .2 0　
8　EfirdKD .Corrosion ,1 977,3 3 :3 47

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