[1]胡志强,刘润杰.某X52弯管泄漏失效分析[J].焊管,2024,47(6):54-61.[doi:10.19291/j.cnki.1001-3938.2024.06.010]
 HU Zhiqiang,LIU Runjie.Leakage Failure Analysis of X52 Bend Pipe[J].,2024,47(6):54-61.[doi:10.19291/j.cnki.1001-3938.2024.06.010]
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某X52弯管泄漏失效分析()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第6期
页码:
54-61
栏目:
失效分析
出版日期:
2024-06-27

文章信息/Info

Title:
Leakage Failure Analysis of X52 Bend Pipe
文章编号:
10.19291/j.cnki.1001-3938.2024.06.010
作者:
胡志强刘润杰
1. 中石化西南油气分公司彭州气田 (海相) 开发项目部,成都 610000;
2. 中石化西南油气分公司油气销售中心,四川 德阳 618000
Author(s):
HU ZhiqiangLIU Runjie
1.Pengzhou Gas Field (Marine) Development Project Department,Sinopec Southwest Oil and Gas Branch,Chengdu 610000,China;
2.Oil and Gas Sales Centre,Sinopec Southwest Oil and Gas Branch,Deyang 618000,Sichuan,China
关键词:
弯管腐蚀失效分析应力腐蚀开裂
Keywords:
bend pipecorrosionfailure analysisstress corrosion cracking
分类号:
TG115
DOI:
10.19291/j.cnki.1001-3938.2024.06.010
文献标志码:
B
摘要:
为了分析某 X52 钢级 Φ325 mm×7 mm 输气管道弯管段开裂泄漏原因,通过宏观观察、磁粉检测、理化性能检测、扫描电镜和能谱分析等对失效管段进行了取样分析。结果表明,该失效弯管的化学成分、拉伸性能、冲击韧性、硬度测试均不满足相关标准要求;失效弯管外弧侧裂纹源处发生氧腐蚀,在外弧侧形成点蚀坑,在材料本身的残余应力、张应力和管内内压的作用下起裂并发生扩展,当扩展到一定程度时剩余壁厚的强度无法承载导致裂纹快速扩展开裂,裂纹扩展呈脆性特征,属于应力腐蚀开裂。
Abstract:
In order to analyze the cracking and leakage causes of X52 Φ325 mm×7 mm pipeline bend pipe section,the failed pipe section is sampled by macroscopic observation,magnetic particle detection,physical and chemical properties detection,scanning electron microscopy and energy spectrum analysis.The results show that the chemical composition,tensile properties,impact toughness and hardness test of the failed pipe do not meet the requirements of relevant standards.Oxygen corrosion occurs at the crack source on the outer arc side of the failed bend pipe,forming pitting pits on the outer arc side,cracking occurs and expansion occurs under the action of the residual stress,tensile stress and internal pressure of the material itself. When the expansion reaches a certain extent,the strength of the remaining wall thickness cannot bear the load,resulting in rapid expansion cracking. The crack growth is brittle and belongs to stress corrosion cracking.

参考文献/References:


1、罗立辉,牛大宇,宋鹏迪,等.L290输油管道腐蚀穿孔失效分析[J].热加工工艺,2023,52(18):139-142,138.
2、陈朝,郭玉洁,孙海礁,等.某天然气管线腐蚀穿孔失效分析[J].材料保护,2021,54(6):175-181.
3、胡志强,杨专钊,李德君,等.某L245N等径三通开裂失效分析[J].焊管,2021,44(2):33-37.
4、谭川江,蒋宏,张丽,等.某油田低压集输管线腐蚀穿孔失效分析[J].腐蚀与防护,2014,35(1):99-101,106.
5、张科,朱丽霞,何志,等.X52输气管道腐蚀失效分析[J].腐蚀与防护,2020,41(4):73-78.
6、叶正荣,桂晶,裘智超,等.某油田地面注水管线腐蚀失效分析[J].材料保护,2018,51(11):148-151.
7、胡建国,罗慧娟,张志浩,等.长庆油田某输油管道腐蚀失效分析[J].腐蚀与防护,2018,39(12):962-965,970.
8、任明浩,江胜飞,杨卫华,等.带插入式构件油气混输管道失效分析[J].腐蚀与防护,2013,34(10):960-962.
9、韩燕,巨亚锋,罗有刚,等.某N80新油管早期腐蚀穿孔失效分析[J].材料保护,2020,53(11):160-165.
10、单广斌,刘小辉,亓婧,等.天然气管道开裂失效分析[J].压力容器,2013,30(11):47-51.
11、常乐,钱英豪,周鹏飞,等.埋地天然气管道三通的失效分析[J].压力容器,2011,28(9):56-59.
12、冯耀荣,杨龙,李鹤林.石油管失效分析预测预防与完整性管理[J].金属热处理,2011,36(增刊1):15-16.
13、严密林,赵国仙,白真权,等.大庆油田某井油管外壁腐蚀失效分析[J].材料保护,2001,34(10):48-49.

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备注/Memo

备注/Memo:
收稿日期:2023-08-01
作者简介:胡志强(1994—),男,硕士研究生,研究方向为天然气管道腐蚀与防护。
更新日期/Last Update: 2024-06-27