电力勘测设计Issue(12)：10-16,28,8.DOI:10.13500/j.dlkcsj.issn1671-9913.2023.12.003
核电主管道奥氏体不锈钢焊缝相控阵超声检测
Implementation of Phased-array Ultrasonic Investigation for the Austenitic Stainless Steel Weldments in the Primary Piping Systems of Nuclear Power Stations
葛广林 1姚建松 2朱琪 3徐宁4
作者信息
- 1. 中国能源建设集团有限公司工程研究院,北京 100022
- 2. 浙江无损检测工程技术有限公司,浙江 杭州 310016
- 3. 安徽津利能源科技发展有限责任公司,安徽 合肥 231200||中国能建工程研究院相控阵检测技术应用研究所,安徽 合肥 231200
- 4. 苏州热工研究院有限公司,江苏 苏州 215004
- 折叠
摘要
Abstract
To address the difficulty of ultrasonic testing for the austenitic stainless steel welds in nuclear reactor coolant pipes,this paper studies the influence of coarse grains in austenitic stainless steel on ultrasonic beam propagation through microscopic structure observation and process simulation.It determines a preliminary phased array ultrasonic testing solution for austenitic stainless steel.It analyzes the advantages of phased array ultrasonic testing using sectorial scan from linear array transducers and total focusing method(TFM)imaging from matrix array transducers,and compares the sensitivity,resolution and signal-to-noise ratio for detecting surface and various internal flaws by using reference blocks and simulation blocks.The results demonstrate that using TFM imaging excited by dual matrix array(DML)ultrasonic transducers is feasible for inspecting the austenitic stainless steel welds.关键词
奥氏体不锈钢/相控阵超声/DML相控阵探头/TFM全聚焦技术/扇扫描Key words
austenitic stainless steel/phased array ultrasonic/DML phased array probe/TFM full focus detection/S-Scan分类
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葛广林,姚建松,朱琪,徐宁..核电主管道奥氏体不锈钢焊缝相控阵超声检测[J].电力勘测设计,2023,(12):10-16,28,8.
