STUDY OF CO2 CORROSION SCALES ON N80 STEEL

J Chin Soc Corr Pro

2002, Vol. 22

Issue (3): 143-147 DOI:

Research Report

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STUDY OF CO2 CORROSION SCALES ON N80 STEEL

Changfeng Chen;Guoxian Zhao;MinXV Lu

西北工业大学材料科学与工程学院

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Abstract While simulating the environment of CO2 co rrosion in oilfield,XRD，EDS and SEM techniques were adopted to study the formation and development of CO2 corrosion product film on N80 steel.The results demonstrat ed that the corrosion scales could protect matrix of N80 steel and the n reduce the corrosion rate.There were three layers in CO2 corrosion product f ilm.Structural characteristics and formation mechanism of the film were discusse d respectively.At the same time,breakage of FeCO3 scale was studied.The CO2 corrosion scale was (Fe，Ca)CO3.〖JP〗

Key words: CO2 corrosion corrosion scale N80 steel

Received: 22 November 2000

ZTFLH:

TG172

Corresponding Authors: Changfeng Chen

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Changfeng Chen; Guoxian Zhao; MinXV Lu. STUDY OF CO2 CORROSION SCALES ON N80 STEEL. J Chin Soc Corr Pro, 2002, 22(3): 143-147 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2002/V22/I3/143

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