AN ANALYSIS OF FAILURE IN CAST IRON SEAWATER BURIED PIPE

J Chin Soc Corr Pro

2005, Vol. 25

Issue (3): 183-186 DOI:

Failure Analysis

Current Issue | Archive | Adv Search

AN ANALYSIS OF FAILURE IN CAST IRON SEAWATER BURIED PIPE

;;

华东理工大学;上海应用技术学院

Download:

PDF(246KB)
Export: BibTeX | EndNote (RIS)

Abstract This paper mainly analyses the cause and principle of the failure in cast iron seawater pipe.The pipe is 630 mm of inside diameter and 12 mm of wall thickness.In the inner wall coating was polymer sand plasma.There was a big corroded hole in the pipe.With the help of morphological character and metallographic examination,it was found that on the matrix material there were small holes with different depth and size and only few pearlite matrix was left.With the help of microanalysis,it was found that in the inner wall there were Cl\+- and oxygen.With the help of scanning electron microscope,it was found that in the crack area there was oxide in the shape of line.In the same time it was found the value of rigidity was lower in inner face than in outer face.Through the analysis we can confirm the cause of the failure is the action of electrochemical corrosion and chemical corrosion when the Cl\+- and oxygen were existed.The equation of the electrochemical corrosion is also discussed.

Key words: seawater cast iron pipe corrosion principle failure analysis

Received: 12 January 2004

ZTFLH:

TG172.5

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors

Cite this article:

. AN ANALYSIS OF FAILURE IN CAST IRON SEAWATER BURIED PIPE. J Chin Soc Corr Pro, 2005, 25(3): 183-186 .

URL:

https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2005/V25/I3/183

[1]MakarJM.Apreliminaryanalysesoffailuresofgraycastironwater pipe[J].EngineeringFailureAnalysis,2000,7:43-53
[2]NevilleA,HodgkiessT,XuH.Anelectrochemicalandmicrostruc turalassessmentoferosion-corrosionofcastiron[J].Wear,1999,(233-235):523-534
[3]WangRF,WeiH,XiaLT.There-corrosionofcastironinthe environmentofsea[J].ResearchStudiesonFoundryEquipment,2001,(05):25-27(王荣峰,韦华,夏兰廷.铸铁在海洋腐蚀环境下的防护措施[J].铸造设备研究,2001,(05):25-27)
[4]XiaLT,WeiH.Effectofgraphitemorphologyonthecorrosion propertiesofcastironinthestillsea[J].J.TaiyuanHeavyMachin eryInstitute,2002,23(1):532-534,547(夏兰廷,韦华.石墨形态对铸铁静海腐蚀性能的影响[J].太原重型机械学院学报,2002,23(1):532-534,547)

[1]	ZHAI Sixin, YANG Xingyun, YANG Jilan, GU Jianfeng. Corrosion Properties of Quenching-Partitioning-Tempering Steel in Simulated Seawater[J]. 中国腐蚀与防护学报, 2020, 40(5): 398-408.
[2]	WANG Yu, WU Jiajia, ZHANG Dun. Research Progress on Corrosion of Metal Materials Caused by Dissimilatory Iron-reducing Bacteria in Seawater[J]. 中国腐蚀与防护学报, 2020, 40(5): 389-397.
[3]	DING Guoqing,LI Xiangyang,ZHANG Bo,YANG Zhaohui,HUANG Guiqiao,YANG Haiyang,LIU Kaiji. Variation of Free Corrosion Potential of Several Metallic Materials in Natural Seawater[J]. 中国腐蚀与防护学报, 2019, 39(6): 543-549.
[4]	Shaokun YAN,Dajiang ZHENG,Jiang WEI,Guangling SONG,Lian ZHOU. Electrochemical Activation of Passivated Pure Titanium in Artificial Seawater[J]. 中国腐蚀与防护学报, 2019, 39(2): 123-129.
[5]	Bo DA,Hongfa YU,Haiyan MA,Zhangyu WU. Influence of Inhibitors on Reinforced Bar Corrosion of Coral Aggregate Seawater Concrete[J]. 中国腐蚀与防护学报, 2019, 39(2): 152-159.
[6]	Dan YANG,Dinglin LI,Yanliang HUANG,Pilong HUA,Xia ZHAO,Peng PENG,Xiutong WANG. Research Progress on Corrosion Issue and Metallic Material Selection Related with Seawater Pumped Storage Power Plant[J]. 中国腐蚀与防护学报, 2019, 39(1): 1-8.
[7]	Peichang DENG, Quanbing LIU, Ziyun LI, Gui WANG, Jiezhen HU, Xie WANG. Corrosion Behavior of X70 Pipeline Steel in the Tropical Juncture Area of Seawater-Sea Mud[J]. 中国腐蚀与防护学报, 2018, 38(5): 415-423.
[8]	Yan SUN, Jiajia WU, Dun ZHANG, Shiqiang CHEN. Investigation of Microorganisms in Corrosion Product Scales on Q235 Carbon Steel Exposed to Tidal- and Full Immersion Zone at Qindao- and Sanya-sea Waters[J]. 中国腐蚀与防护学报, 2018, 38(4): 333-342.
[9]	Zhenhua WANG, Yang BAI, Xiao MA, Shaohua XING. Numerical Simulation of Galvanic Corrosion for Couple of Ti-alloy with Cu-alloy in Seawaters[J]. 中国腐蚀与防护学报, 2018, 38(4): 403-408.
[10]	Tianyi ZHANG,Junsheng WU,Hailong GUO,Xiaogang LI. Influence of HSO₃^- on Passive Film Composition and Corrosion Resistance of 2205 Duplex Stainless Steelin Simulated Seawater[J]. 中国腐蚀与防护学报, 2016, 36(6): 535-542.
[11]	Yongqi TAO,Gang LIU,Yesheng LI,Zhixiang ZENG. Corrosion Wear Properties of 2024 Al-Alloy in Artificial Seawater[J]. 中国腐蚀与防护学报, 2016, 36(6): 587-594.
[12]	Zihao WANG,Yunhua HUANG,Jia LI,Lang YANG,Donghan XIE. Effect of Nb on Corrosion Behavior of Simulated Weld HAZs of X80 Pipeline Steel in Simulated Seawater Environments Correxxxxsponding to Shallow Sea and Deep Sea[J]. 中国腐蚀与防护学报, 2016, 36(6): 604-610.
[13]	Jihui WANG,Huajie YAN,Wenbin HU. Preparation and Inhibition Behavior of Molybdate Intercalated ZnAlCe-hydrotalcite[J]. 中国腐蚀与防护学报, 2016, 36(6): 637-644.
[14]	Jianchun ZHANG,Jingyang JIANG,Yang LI,Jinjie SHI,Longfei ZUO,Danqian WANG,Han MA. Passive Films Formed on Seawater Corrosion Resistant Rebar 00Cr10MoV in Simulated Concrete Pore Solutions[J]. 中国腐蚀与防护学报, 2016, 36(5): 441-449.
[15]	Jianchun ZHANG,Longfei ZUO,Jinyang JIANG,Han MA,Dan SONG. Microstructure and Properties of Seawater Corrosion Resistant Rebar Steel 00Cr10MoV[J]. 中国腐蚀与防护学报, 2016, 36(4): 363-369.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed