SHORT-TERM CORROSION BEHAVIOR OF X70 STEEL IN KU'ERLE SOIL

J Chin Soc Corr Pro

2005, Vol. 25

Issue (1): 15-19 DOI:

Research Report

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SHORT-TERM CORROSION BEHAVIOR OF X70 STEEL IN KU'ERLE SOIL

Junwei Wu;Xiaogang Li;Cuiwei Du;Song Wang;Yiquan Song

北科大材料科学与工程学院腐蚀与防护中心

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Abstract Corrosion behavior of X70 steel in Ku'erle soil saturated with water at 16℃,32℃,and 45℃ was studied througy 32 days and 64 days burying by means of macroscopic observation,SEM,EDS,XRD,weightloss method and electrochemical measurements etc. The results revealed that cirrision rates did not reach stabilization during the periid of experimentation,and increased as the increasing of temperature.Meanwhile, it was found that serious general corrosion and potting took place at 45℃ and the content of Cl- and whole salt dominated the corrosion severity.Cathodic reaction was mostly the oxygenic deoxidzation at the temperature of 16℃ and 32℃, and sulfate reduction reaction also occurred at 45℃.

Key words: X70 steel Ku erle soil soil corrosion

Received: 20 June 2003

ZTFLH:

TG172.4

Corresponding Authors: Junwei Wu E-mail: wufujw@sina.com

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Cite this article:

Junwei Wu; Xiaogang Li; Cuiwei Du; Song Wang; Yiquan Song. SHORT-TERM CORROSION BEHAVIOR OF X70 STEEL IN KU'ERLE SOIL. J Chin Soc Corr Pro, 2005, 25(1): 15-19 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2005/V25/I1/15

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