NUMERICAL SIMULATION OF EROSION-CORROSION OF DUPLEX STAINLESS STEEL IN SINGLE-PHASE FLOW

J Chin Soc Corr Pro

2003, Vol. 23

Issue (5): 290-294 DOI:

Research Report

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NUMERICAL SIMULATION OF EROSION-CORROSION OF DUPLEX STAINLESS STEEL IN SINGLE-PHASE FLOW

Jingjun Liu;Yuzhen Lin;Xingyue Yong

北京化工大学材料科学与工程学院

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Abstract Based on the test results by using rotating simulat ion apparatus,erosion-corrosion of duplex stainless steel in flowing 3.5%NaCl so lution is studied numerically.A comprehensive mathematics model for flow induced corrosion includes three components:the flow model,mass transfer model and corr osion model,which was established by combination of numerical method with experi mental measurement.It was studied that hydrodynamic parameters can affect the co rrosion process.The results show that corrosion is controlled by self-passivatio n process of anode and the mass transfer process in the film of duplex stainless steel is the slowest one in the processes of corrosion.The corrosion rate obtai ned from numerical method is almost equal to the measured one,and the corrosion mechanism of duplex stainless steel was further verified by numerical simulation 

Key words: duplex stainless steel flowing 3.5%NaCl solution numer ical simulation mechanism

Received: 14 May 2002

ZTFLH:

TG172.9

Corresponding Authors: Jingjun Liu E-mail: liujingjun@mail.buct.edu.cn

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Jingjun Liu; Yuzhen Lin; Xingyue Yong. NUMERICAL SIMULATION OF EROSION-CORROSION OF DUPLEX STAINLESS STEEL IN SINGLE-PHASE FLOW. J Chin Soc Corr Pro, 2003, 23(5): 290-294 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2003/V23/I5/290

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