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金属套管腐蚀缺陷的脉冲涡流近-远场复合检测

张超, 李勇, 闫贝, 王翼, 陈振茂

张超, 李勇, 闫贝, 王翼, 陈振茂. 金属套管腐蚀缺陷的脉冲涡流近-远场复合检测[J]. 无损检测, 2019, 41(10): 37-43,49. DOI: 10.11973/wsjc201910009
引用本文: 张超, 李勇, 闫贝, 王翼, 陈振茂. 金属套管腐蚀缺陷的脉冲涡流近-远场复合检测[J]. 无损检测, 2019, 41(10): 37-43,49. DOI: 10.11973/wsjc201910009
ZHANG Chao, LI Yong, YAN Bei, WANG Yi, CHEN Zhenmao. Evaluation of corrosion in double-casing pipes via near- and remote-field pulsed eddy current hybrid testing[J]. Nondestructive Testing, 2019, 41(10): 37-43,49. DOI: 10.11973/wsjc201910009
Citation: ZHANG Chao, LI Yong, YAN Bei, WANG Yi, CHEN Zhenmao. Evaluation of corrosion in double-casing pipes via near- and remote-field pulsed eddy current hybrid testing[J]. Nondestructive Testing, 2019, 41(10): 37-43,49. DOI: 10.11973/wsjc201910009

金属套管腐蚀缺陷的脉冲涡流近-远场复合检测

基金项目: 

国家自然科学基金项目(51777149);中央高校基本科研业务费专项资金资助项目(XJJ2018027);国家重点研发项目(2017YFF0209703)

详细信息
    作者简介:

    张超(1997-),男,硕士研究生,主要研究方向为电磁无损检测,zc545319190@stu.xjtu.edu.cn

    通讯作者:

    李勇, E-mail:yong.li@mail.xjtu.edu.cn

  • 中图分类号: TG115.28

Evaluation of corrosion in double-casing pipes via near- and remote-field pulsed eddy current hybrid testing

  • 摘要: 双层金属套管是石油、化工、航空航天等工程领域常见的一种管道结构,由材料不同的内、外管组成。服役中的双层金属套管易出现腐蚀等缺陷,严重影响结构的完整性,因此,对双层金属套管进行有效原位无损检测非常重要。围绕脉冲涡流近-远场复合检测方法,针对不锈钢-碳钢双层套管内、外管腐蚀缺陷的检测进行探究。通过系列仿真研究,在明晰脉冲涡流近-远场磁场信号及其特征与内、外管外壁减薄损伤参数间关联规律的基础上,提出套管减薄损伤识别及定量评估方法。基于所搭建的试验平台,试验验证了基于脉冲涡流近-远场复合检测的不锈钢-碳钢双层套管外壁减薄损伤识别及量化评估方法的有效性。
    Abstract: As one of the piping structures, the double-casing pipe (DCP) consisting of the inner and outer pipes in different materials is usually employed in such engineering fields as petroleum, chemical and aerospace, etc. Corrosion can be found in in-service DCPs, and it severely undermines the structural integrity of the DCP. Consequently, it is vital to effectively inspect DCPs via in-situ nondestructive evaluation (NDE) techniques. In this paper, near- and remote-field pulsed eddy current hybrid testing technique (NRPEC) is intensively investigated for the evalution of hidden corrosion in the stainless steel-casing iron DCP. The correlations of the testing signal and its features with the parameters of the external wall-thinning defect are analysed through simulations. Based on this, the algorithms for classification and quantitatively evaluation of the defect are proposed. In parallel, an NRPEC system is built up for experimental investigation. The validity of NRPEC and proposed algorithms is identified via experiments.
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出版历程
  • 收稿日期:  2019-06-24
  • 刊出日期:  2019-10-09

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