Analysis of inner fold and bulge defects on J55 steel for oil casing pipe
Analysis of inner fold and bulge defects on J55 steel for oil casing pipe
复制标题
J55石油套管钢内褶皱缺陷分析
DOI：
10.1063/1.5100889
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发表时间：
2019-08
期刊：
影响因子：
1.6
通讯作者：
Jian Sun
中科院分区：
文献类型：
--
作者：
Bosi Li;Hangyu Zhu;Zhengliang Xue;Zhengfeng Qin;Jian Sun
观察了J55石油套管内折和内鼓缺陷的典型宏观和微观形貌，并对缺陷附近的夹杂物和金相组织进行了检测，以了解缺陷的形成机理。结果表明，鼓包缺陷附近的夹杂物主要为CaO·Al2O3和MgO·Al2O3，内褶层中夹杂物成分相似。脆性非金属夹杂物是产生鼓包和内折缺陷的主要原因。在轧制过程中夹杂物与金属基体之间的相对滑动形成了微裂纹，这些微裂纹在尺寸应力作用下进一步扩展导致了鼓包缺陷的产生。内折缺陷是由膨胀缺陷形成的，膨胀缺陷是由于塞从管道中退出时膨胀缺陷的再压缩和破裂而形成的。优化脱氧工艺和提高钢的洁净度是避免石油套管内折和鼓包缺陷的根本措施。并且检测这些缺陷附近的夹杂物和金相结构以获得对缺陷形成机制的理解。结果表明，鼓包缺陷附近的夹杂物主要为CaO·Al2O3和MgO·Al2O3，内褶层中夹杂物成分相似。脆性非金属夹杂物是产生鼓包和内折缺陷的主要原因。轧制过程中夹杂物与金属基体之间的相对滑动会形成微裂纹，这些微裂纹在尺寸应力的作用下进一步扩展，导致鼓包缺陷的产生。内折缺陷是由膨胀缺陷形成的，膨胀缺陷是由于塞从管道中退出时膨胀缺陷的再压缩和破裂而形成的。因此，应优化工艺参数，从根本上解决石油套管的鼓包和内折缺陷。
Typical macroscopic and microscopic morphologies of inner fold and bulge defects of J55 oil casing pipe are observed, and inclusions and the metallographic structure near these defects are detected to obtain an understanding of the defect formation mechanisms. The results show that the main inclusions near the origin of bulge defects are CaO·Al2O3 and MgO·Al2O3, with a similar inclusion composition being found in the inner fold layer. Brittle nonmetallic inclusions are the main causes of bulge and inner fold defects. Microcracks are formed owing to relative sliding between the inclusions and the metal matrix during the rolling process, and further extension of these microcracks then leads to the creation of bulge defects under sizing stress. Inner fold defects are formed from bulge defects owing to recompression and breaking of the latter as the plug exits from the pipe. It can therefore be concluded that the fundamental measures to avoid bulge and inner fold defects in oil casing pipe should be optimization of the deoxidization process and improvements in steel cleanliness.Typical macroscopic and microscopic morphologies of inner fold and bulge defects of J55 oil casing pipe are observed, and inclusions and the metallographic structure near these defects are detected to obtain an understanding of the defect formation mechanisms. The results show that the main inclusions near the origin of bulge defects are CaO·Al2O3 and MgO·Al2O3, with a similar inclusion composition being found in the inner fold layer. Brittle nonmetallic inclusions are the main causes of bulge and inner fold defects. Microcracks are formed owing to relative sliding between the inclusions and the metal matrix during the rolling process, and further extension of these microcracks then leads to the creation of bulge defects under sizing stress. Inner fold defects are formed from bulge defects owing to recompression and breaking of the latter as the plug exits from the pipe. It can therefore be concluded that the fundamental measures to avoid bulge and inner fold defects in oil casing pipe should be optimizat...
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DOI：
10.4028/www.scientific.net/amr.562-564.326
发表时间：
2012-08
期刊：
Advanced Materials Research
影响因子：
--
作者：
Jie Li;D. Yao;Peng Xu;Jianchun Fan;L. Cui
通讯作者：
Jie Li;D. Yao;Peng Xu;Jianchun Fan;L. Cui
DOI：
10.1016/s1006-706x(15)30135-7
发表时间：
2015-11
影响因子：
2.5
作者：
Haibin Li;Dongwei Zhao;Guo-sen Zhu;Chun Bao;Jian Yang
通讯作者：
Haibin Li;Dongwei Zhao;Guo-sen Zhu;Chun Bao;Jian Yang
影响因子：
1.1
作者：
J. Zou;N. Lin;L. Qin;B. Tang;F. Xie
通讯作者：
J. Zou;N. Lin;L. Qin;B. Tang;F. Xie
影响因子：
4
作者：
B. Medjo;M. Rakin;N. Gubeljak;Y. Matvienko;M. Arsić;Ž. Šarkočević;A. Sedmak
通讯作者：
B. Medjo;M. Rakin;N. Gubeljak;Y. Matvienko;M. Arsić;Ž. Šarkočević;A. Sedmak
比较%20的%20腐蚀%20行为%20为%20J55%20碳%20钢%20in%20CO2/30%%20原油%20油/盐水%20和%20CO2/盐水%20溶液
影响因子：
0.9
作者：
Hai-Hao Bai;Yong-Qing Wang;Yun Ma;Rui Wang
通讯作者：
Rui Wang