• CN:11-2187/TH
  • ISSN:0577-6686

›› 2012, Vol. 48 ›› Issue (4): 12-20.

• 论文 • 上一篇    下一篇

厚壁铸造奥氏体不锈钢管道焊缝超声相控阵检测技术概述

林莉;杨平华;张东辉;赵天伟;杨会敏;李喜孟   

  1. 大连理工大学无损检测研究所;核工业工程研究设计有限公司
  • 发布日期:2012-02-20

Review of Phased Array Ultrasonic Testing for Thick Wall Cast Austenitic Stainless Steel Pipeline Welds

LIN Li;YANG Pinghua;ZHANG Donghui;ZHAO Tianwei;YANG Huimin;LI Ximeng   

  1. Non-destructive Testing & Evaluation Laboratory, Dalian University of Technology Nuclear Industry Research and Engineering Co., Ltd
  • Published:2012-02-20

摘要: 铸造奥氏体不锈钢(Cast austenitic stainless steel,CASS)管道的焊接质量直接关系到核反应堆的安全,在核动力装置的检验规范中,对此类焊缝加工质量及服役期间状况提出无损检测的强制性要求,但CASS焊缝组织状态的复杂性给超声检测工作带来困难,研究采用相控阵超声检测(Phased array ultrasonic testing,PAUT)技术解决这一难题已成为国内外无损检测工作者关注的热点。概述厚壁CASS管道焊缝PAUT技术的难点,归纳相应的关键技术及解决策略,并简述近期国内外相关研究工作的进展和成果,以期为厚壁CASS管道焊缝的PAUT技术提供借鉴和参考。

关键词: 焊缝, 厚壁, 相控阵超声检测, 铸造奥氏体不锈钢

Abstract: The welding quality of cast austenitic stainless steel (CASS) pipeline welds is critical to nuclear reactors. The mandatory requirements of NDT have been raised in inspection code of nuclear power plant, which is about the welding quality and service condition of CASS welds. However, the complex structure of welds makes the ultrasonic testing of CASS welds challenging. Phased array ultrasonic testing (PAUT) technique is promising to solve this problem. The difficulties of PAUT for thick wall CASS pipeline welds are analyzed, the corresponding key issues and solving strategies are summarized. Furthermore, the research progress and latest research results at home and abroad are described, which provides reference for the PAUT of thick wall CASS pipeline welds.

Key words: Cast austenitic stainless steel(CASS), Phased array ultrasonic testing(PAUT), Thick wall, Weld

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