Corrosion Behavior of Weld Pipe of X80 Steel in Lunnan Loam under Wet/Dry Alternation and Water Saturation Conditions

CHEN Long; HAN Huagang; ZHANG Hui; XU Chao; ZHANG Gen; YANG Xing

doi:10.11973/jxgccl202312012

Materials and Mechanical Engineering > 2023 > 47(12): 67-74. > DOI: 10.11973/jxgccl202312012

CHEN Long, HAN Huagang, ZHANG Hui, XU Chao, ZHANG Gen, YANG Xing. Corrosion Behavior of Weld Pipe of X80 Steel in Lunnan Loam under Wet/Dry Alternation and Water Saturation Conditions[J]. Materials and Mechanical Engineering, 2023, 47(12): 67-74. DOI: 10.11973/jxgccl202312012

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Corrosion Behavior of Weld Pipe of X80 Steel in Lunnan Loam under Wet/Dry Alternation and Water Saturation Conditions

1. No. 8 Oil Production Plant, Changqing Oilfeild Company, PetroChina, Xi'an 710021, China;
2. Beijing Longshine Oil Tubular Technology Co., Ltd., Beijing 100000, China;
3. School of Materials Science and Engineering, Xi'an Shiyou University, Xi'an 710065, China

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Received Date: September 19, 2022
Revised Date: November 27, 2023

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Abstract

With loam taken from Lunnan Oilfield as corrosion medium, indoor simulated corrosion test was carried out on X80 steel weld pipe under wet/dry alternation and water saturation conditions. The corrosion rate, corrosion morphology and corrosion products of the base metal and weld samples were compared and studied. The results show that the corrosion rate of the test steel under wet/dry alternation condition was 2-48 times that under water saturation condition, and the base matal had better corrosion resistant than the weld. The base matal and weld samples were mainly corroded slightly and completely under water saturation condition. The soil plate morphology was presented under wet/dry alternation condition and there were a lot of corrosion pits. Under water saturation condition, the inner layer of corrosion products on the surface of base metal was thin and dense, the outer layer of corrosion products was dispersed and cracked. The inner layer of corrosion products on the surface of weld had crazing. Under wet/dry alternation condition, there were cracks on corrosion products on the surface of base metal and weld.
- X80 pipeline steel,
- Lunnan loamy soil,
- water saturation,
- wet/dry alternation,
- corrosion behavior

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[1]	MAOCHENG Y A N. JIN X U. LIBAO Y U. et al.EIS analysis on stress corrosion initiation of pipeline steel under disbonded coating in near-neutral pH simulated soil electrolyte[J].Corrosion Science. 2016. 110:23-34.
[2]	LIU Z Y. LI X G. DU C W. et al. Effect of inclusions on initiation of stress corrosion cracks in X70 pipeline steel in an acidic soil environment[J]. Corrosion Science. 2009. 1(4):895-900.
[3]	李鹤林. 吉玲. 康田伟.西气东输一、二线管道工程的几项重大技术进步[J]. 天然气工业. 2010. 30(4):1-9. LI H L. JI L. KANG T W.Significant technical progress in the West-East Gas Pipeline Projects:Line one and line two[J]. Natural Gas Industry. 2010. 30(4):1-9.
[4]	HAIRIL MOHD M. PAIK J K.Investigation of the corrosion progress characteristics of offshore subsea oil well tubes[J].Corrosion Science. 2013. 67:130-141.
[5]	NGUYEN DANG D. LANARDE L. JEANNIN M. et al.Influence of soil moisture on the residual corrosion rates of buried carbon steel structures under cathodic protection[J].Electrochimica Acta. 2015. 176:1410-1419.
[6]	CALEYO F. VALOR A. ALFONSO L. et al.Bayesian analysis of external corrosion data of non-piggable underground pipelines[J].Corrosion Science. 2015. 90:33-45.
[7]	李雪. 朱庆杰. 周宁. 等.油气管道腐蚀与防护研究进展[J].表面技术. 2017. 46(12):206-217. LI X. ZHU Q J. ZHOU N. et al.Oil-gas pipe corrosion and protection[J].Surface Technology. 2017. 46(12):206-217.
[8]	YAN M C. SUN C. DONG J H. et al.Electrochemical investigation on steel corrosion in iron-rich clay[J].Corrosion Science. 2015. 97:62-73.
[9]	COLE I S. MARNEY D.The science of pipe corrosion:A review of the literature on the corrosion of ferrous metals in soils[J].Corrosion Science. 2012. 56:5-16.
[10]	LIU Z Y. LI X G. CHENG Y F.Understand the occurrence of pitting corrosion of pipeline carbon steel under cathodic polarization[J].Electrochimica Acta. 2012. 60:259-263.
[11]	李丽锋. 李超. 罗金恒. 等.干湿交替砂土环境下X80管线钢的腐蚀行为研究[J].材料保护. 2020. 53(3):54-60. LI L F. LI C. LUO J H. et al.Study on the corrosion behavior of X80 pipeline steel in dry-wet alternating sandy soil environment[J].Materials Protection. 2020. 53(3):54-60.
[12]	陈旭. 杜翠薇. 李晓刚. 等.含水量对X70钢在大港滨海盐渍土壤中腐蚀行为的影响[J].北京科技大学学报. 2008. 30(7):730-734. CHEN X. DU C W. LI X G. et al.Influences of water content on the corrosion behavior of X70 steel in Dagang saline-alkaline soil[J].Journal of University of Science and Technology Beijing. 2008. 30(7):730-734.
[13]	郝宏娜. 王太源. 李自力. 等.含水率对X70钢在滨海土壤中腐蚀行为的影响[J].管道技术与设备. 2011(6):43-46. HAO H N. WANG T Y. LI Z L. et al.Influences of water content on the corrosion behavior of X70 steel in coastal soil[J].Pipeline Technique and Equipment. 2011(6):43-46.
[14]	朱丽霞. 贾海东. 罗金恒. 等.外加电位对X80管线钢在轮南土壤模拟溶液中应力腐蚀行为的影响[J].中国腐蚀与防护学报. 2020. 40(4):325-331. ZHU L X. JIA H D. LUO J H. et al.Effect of applied potential on stress corrosion behavior of X80 pipeline steel and its weld joint in a simulated liquor of soil at Lunnan area of Xinjiang[J].Journal of Chinese Society for Corrosion and Protection. 2020. 40(4):325-331.
[15]	孔君华. 郭斌. 刘昌明. 等. 高钢级管线钢X80的研制与发展[J]. 材料导报. 2004. 18(4):23-26. KONG J H. GUO B. LIU C M. et al.Research and development of high strength pipeline steel X80[J].Materials Review. 2004. 18(4):23-26.
[16]	NIU J. QI L H. LIU Y L. et al.Tempering microstructure and mechanical properties of pipeline steel X80[J].Transactions of Nonferrous Metals Society of China. 2009. 19:573-578.
[17]	刘淑云. 王帅星. 杜楠. 等.X80管线钢在不同pH值红壤模拟溶液中的腐蚀电化学行为[J].中国腐蚀与防护学报. 2015. 35(1):21-26. LIU S Y. WANG S X. DU N. et al.Electrochemical behavior of X80 pipeline steel in simulated red soil solutions with different pH[J].Journal of Chinese Society for Corrosion and Protection. 2015. 35(1):21-26.
[18]	刘建国. 李言涛. 侯保荣.N80钢模拟全浸区和干湿交替试样的腐蚀行为[J].腐蚀与防护. 2012. 33(11):925-927. LIU J G. LI Y T. HOU B R.Corrosion behavior of N80 steel under immersion and wet-dry cyclic condition[J].Corrosion & Protection. 2012. 33(11):925-927.

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Corrosion Behavior of Weld Pipe of X80 Steel in Lunnan Loam under Wet/Dry Alternation and Water Saturation Conditions

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