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。
所属栏目
2009年远东无损检测论坛论文精选
收稿日期
2009/8/1
作者单位
陈怀东:中广核检测技术有限公司苏州分公司, 苏州 215004
肖学柱:中广核检测技术有限公司苏州分公司, 苏州 215004
李明:中广核检测技术有限公司苏州分公司, 苏州 215004
刘金宏:中广核检测技术有限公司苏州分公司, 苏州 215004
备注
陈怀东(1976-), 男, 高级工程师, 博士, 主要从事核电站在役检查。
引用该论文:
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
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
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