不锈钢在低温地热水环境中的腐蚀与结垢行为
Corrosion and Scaling Behavior of Stainless Steel in Low-temperature Geothermal Water Environment
摘 要
采用电化学试验，静态腐蚀浸泡试验，扫描电镜观察等研究了B44660超级铁素体不锈钢和316L不锈钢材料在模拟中国中部地区地热水环境中的腐蚀和结垢行为。结果表明：在此类地热水环境中，两种不锈钢的腐蚀速率均随温度的升高而增加；且两种不锈钢在低温地热水环境中均存在结垢现象，垢层的主要成分均为CaCO3和MgCO3；316L不锈钢的耐腐蚀与阻垢性均优于B44660不锈钢的，更适合应用于地热环境中。
超级铁素体不锈钢
地热水
腐蚀
electrochemistry
super ferrite stainless steel
geothermal water
corrosion
Abstract
Electrochemical test, static corrosion immersion test, and scanning electron microscopy observation were used to study the corrosion and scaling behavior of B44660 super ferritic stainless steel and 316L stainless steel in a simulated geothermal water environment in central China. The results show that in the geothermal water environment, corrosion rates of both stainless steels increased with increasing temperature, and the two stainless steels had scaling phenomenon in low temperature geothermal water environment. The main components of scaling were CaCO3 and MgCO3. 316L stainless steel had better corrosion resistance and scale resistance than those of B44660 stainless steel, and thus was more suitable for use in geothermal environments in central China.
中图分类号 TG174.4 DOI 10.11973/fsyfh-202007010
所属栏目 试验研究
基金项目 国家自然科学基金（51774314）；山东省自然科学基金（ZR2018NE002）；中央高校自主创新科研计划（19CX05001A）
收稿日期 2018/10/7
修改稿日期
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引用该论文: DOU Xiaohui,ZHANG Dalei,JING He,XU Hongming,LI Yan,JIN Youhai. Corrosion and Scaling Behavior of Stainless Steel in Low-temperature Geothermal Water Environment[J]. Corrosion & Protection, 2020, 41(7): 61
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参考文献
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【3】MUNDHENK N,HUTTENLOCH P,KOHL T,et al. Metal corrosion in geothermal brine environments of the upper rhine graben-laboratory and on-site studies[J]. Geothermics,2013,46:14-21.
【4】HURLEY M F,OLSON C R,WARD L J,et al. Transgranular stress corrosion cracking of 304L stainless steel pipe clamps in direct use geothermal water heating applications[J]. Engineering Failure Analysis,2013,33:336-346.
【5】PFENNIG A,WIEGAND R,WOLF M,et al. Corrosion and corrosion fatigue of AISI 420C (X46Cr13) at 60℃ in CO2-saturated artificial geothermal brine[J]. Corrosion Science,2013,68:134-143.
【6】SHIRINZADEH-DASTGIRI M,MOHAMMADI J,BEHNAMIAN Y,et al. Metallurgical investigations and corrosion behavior of failed weld joint in AISI 1518 low carbon steel pipeline[J]. Engineering Failure Analysis,2015,53:78-96.
【7】WANG L W,LIU Z Y,CUI Z Y,et al. In situ corrosion characterization of simulated weld heat affected zone on API X80 pipeline steel[J]. Corrosion Science,2014,85:401-410.
【8】赵金平,王心义,韩鹏飞,等. 河南省东部平原地热水结垢与腐蚀评价及防护技术的研究[J]. 福州大学学报(自然科学版),2004,32(1):118-122.
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【10】LIN P,HUANG S,CHU H. Study on calcium carbonate scale formation and the effect of polymer[J]. Chemical Engineering of Oil & Gas,1997.
【11】卢予北. 河南地热(中深)井金属井管腐蚀与结垢试验研究[J]. 探矿工程(岩土钻掘工程),2004,31(8):49-52.
【12】WU K H,ZHU L Q,LI W P,et al. Effect of Ca2+ and Mg2+ on corrosion and scaling of galvanized steel pipe in simulated geothermal water[J]. Corrosion Science,2010,52(7):2244-2249.
【13】吴坤湖,李卫平,刘慧丛,等. 模拟地热水温度对镀锌钢管腐蚀与结垢的影响[J]. 北京航空航天大学学报,2010,36(10):1239-1243.
【14】吴坤湖,李卫平,刘慧丛,等. 模拟地热水环境中304不锈钢管材的结垢与腐蚀电化学行为[J]. 北京科技大学学报,2009,31(10):1263-1269.
【15】朱立群,陈伟,李卫平,等. 地热水管道不锈钢管材腐蚀与结垢试验[J]. 江苏大学学报(自然科学版),2010,31(3):292-295.
【16】蔡培培,李卫平,陈贻炽,等. 模拟地热水中碳钢和镀锌钢管的腐蚀结垢规律[J]. 腐蚀与防护,2009,30(7):454-458.
【17】BOUKAMP B A. Users manual of equivalent circuit[M]. Netherlands:Twente University,1989.
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