EFFECT OF BTA ON EROSION-CORROSION INHIBITION OF BFe30-1-1 IN SINGLE AND SAND-CONTAINING ARTIFIBIAL SEAWATER

J Chin Soc Corr Pro

1999, Vol. 19

Issue (5): 257-264 DOI:

Research Report

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EFFECT OF BTA ON EROSION-CORROSION INHIBITION OF BFe30-1-1 IN SINGLE AND SAND-CONTAINING ARTIFIBIAL 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 inhibition of BTA from erosion-corrosion of BFe30-1-1 in single and sand-containing artificial seawater have been investigated using rotating cylinger apparatus.The methods adopted in the experiments were weight loss and electrochemical measurements insluding linear polarization resistance and potentiodynamic scanning as well as electrochenical inpedance spectroscopy..The results showed that BTA could significantly retarede both the anodic and cathodic reactions of BFe30-1-1 in the media by geometric blocking effect.The adsorption of BTA on the alloy followed Langmiur isotherm.BTA showed better ingibition action in flowing seawater than in static seawater.however,the ingibiting action of BTA decreased then the fluid velocity of artificial seawater was even higher.Furthrmore,the ingibition efficiency of BTA in sand-containing artificial seawater decreased with increasing sand content probably due to the strong mechanical erosion action of sand against electrode surface.

Key words: erosion-corrosion BFe30-1-1 single phase and sand-containng artificial seawater BTA inhibiting actio

Received: 10 November 1998

Corresponding Authors: Fan Yang

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Fan Yang. EFFECT OF BTA ON EROSION-CORROSION INHIBITION OF BFe30-1-1 IN SINGLE AND SAND-CONTAINING ARTIFIBIAL SEAWATER. J Chin Soc Corr Pro, 1999, 19(5): 257-264 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1999/V19/I5/257

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