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核电站安全端异种金属焊缝超声检查技术

陈怀东, 肖学柱, 李明, 刘金宏

陈怀东, 肖学柱, 李明, 刘金宏. 核电站安全端异种金属焊缝超声检查技术[J]. 无损检测, 2009, 31(11): 862-867.
引用本文: 陈怀东, 肖学柱, 李明, 刘金宏. 核电站安全端异种金属焊缝超声检查技术[J]. 无损检测, 2009, 31(11): 862-867.
CHEN Huai-Dong, XIAO Xue-Zhu, LI Ming, LIU Jin-Hong. Review of Research on Ultrasonic Examination Technology of Safe-end Dissimilar Metal Weld of NPP[J]. Nondestructive Testing, 2009, 31(11): 862-867.
Citation: CHEN Huai-Dong, XIAO Xue-Zhu, LI Ming, LIU Jin-Hong. Review of Research on Ultrasonic Examination Technology of Safe-end Dissimilar Metal Weld of NPP[J]. Nondestructive Testing, 2009, 31(11): 862-867.

核电站安全端异种金属焊缝超声检查技术

详细信息
    作者简介:

    陈怀东(1976-), 男, 高级工程师, 博士, 主要从事核电站在役检查。

  • 中图分类号: TG115.28

Review of Research on Ultrasonic Examination Technology of Safe-end Dissimilar Metal Weld of NPP

  • 摘要: 安全端异种金属焊缝在寿命期内的结构完整性对于核电站的安全运行来说是至关重要的。奥氏体粗晶材料的存在以及焊缝几何结构的复杂性使得异种金属焊缝的检查非常具有挑战性。概述了核电站异种金属焊缝超声检查相关的内容, 包括检查的技术要求、国际检查技术特点、检查技术的局限性、针对缺陷检查的可靠性以及检查资格认证等方面。国际上开展的系列理论和实验研究表明, 针对异种金属焊缝检查的可靠性有待继续提高, 对焊缝和预堆边材料中缺陷的准确检查和可靠评价目前还存在一定困难, 需要在新方法和新技术的应用方面继续进行深入研究。
    Abstract: The structural integrity of safe end dissimilar metal weld (DMW) during the lifetime is of significance to the safety operation of nuclear power plant. The austenitic coarse grain material and complex geometry configuration of DMW weld make the examination of dissimilar metal weld very challenging. In this paper the ultrasonic examination technique of dissimilar metal weld is reviewed and summarized, including code inspection requirement, technique characteristic of the abroad vendor, limitation of inspection technique, reliability and inspection qualification etc. The series of theoretical and experimental research showed that the inspection reliability of dissimilar metal weld could be improved continually and it seems a little difficult for accurate examination and reliable evaluation for defect located at position between the weld and buttering, which require further thorough theoretical research and application of new method and technique.
  • [1] Pherigo G L, Pherigo A L. Manufacturing Qualification Specimens for Dissimilar Metal Weldments[C]// 2nd International Conference on NDE in Relation to Structural Integrity for Nuclear and Pressurized Components. New Orleans:[s.n.], 2000.
    [2] IAEA. Assessment and Management of Ageing of Major NPP Components Important to Safety: Primary Piping in PWRs[R]. Vienna: IAEA-TECDOC-1361, 2003.
    [3] ASME Boiler and Pressure vessel Code, Section II – Material Specifications, Part A-Ferrous Materials[S].
    [4] ASME Boiler and Pressure vessel Code, Section XI, Rules for ISI of NPP Components[S].
    [5] RSE-M Code Surveillance and ISI rules for mechanical components of PWR nuclear islands[S].
    [6] NUREG/CR-6860 An Assessment of Visual Testing[S].
    [7] Casula O. A flexible phased array transducer for contact examination of component with complex geometry[C]// 16th WCNDT. Canada:[s.n.], 2004.
    [8] IAEA TECDOC 1400, Improvement of ISI in Nuclear Power Plants[S].
    [9] Non-Destructive Examination Practice and Results, State of Art and PISC III Results, Proceedings of the Joint CEC OECD IAEA Specialists Meeting held at Petten on 8-10 March 1994, EUR 15906 EN, NEA/CSNI/R(94)23.
    [10] Dombert P. Main Results of PISC III Action 3: Nozzles and Dissimilar Welds, Determining Material Characterization: Residual Stress and Integrity with NDE[C]// Pressure Vessel and Piping Conference,[s.l, .]:[s.n.], 1994.
    [11] EUR 17299 EN European methodology for qualification, Second issue[S].
    [12] EUR 16802 EN Common Position of European Regulators on Qualification of NDT Systems for Pre and ISI of Light Water Reactor Components[S].
    [13] IAEA-EBP-WWER-11 Methodology for qualification of in-service inspection systems for WWER Nuclear Power Plants, March[S].
    [14] EUR 22469 EN General review of dissimilar metal welds in piping systems of pressurized water reactors including WWER designs[S].
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出版历程
  • 收稿日期:  2009-07-31
  • 刊出日期:  2009-11-09

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