316L对接焊缝相控阵超声检测工艺模拟与试验验证

王锐; 刘志宏; 吴杰峰; 姜北燕; 李波

doi:10.12073/j.hjxb.2019400284

316L对接焊缝相控阵超声检测工艺模拟与试验验证

1.
中国科学院合肥物质科学研究院, 合肥 230031;中国科学技术大学, 合肥 230036
2.
中国科学院合肥物质科学研究院, 合肥 230031;淮南新能源研究中心特种焊接技术安徽省重点实验室, 淮南 232000
3.
淮南新能源研究中心特种焊接技术安徽省重点实验室, 淮南 232000
4.
中国科学院合肥物质科学研究院, 合肥 230031

基金项目: 国家磁约束核聚变能发展研究专项（2015GB107004）

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- 收稿日期: 2018-12-20

Simulation and experimental verification of phased array ultrasonic testing process in 316L butt weld

1.
Chinese Academy of Sciences, Hefei 230031, China;University of Science and Technology of China, Hefei 230026, China
2.
Chinese Academy of Sciences, Hefei 230031, China;Anhui Province Key Laboratory of Special Welding Technology, Huainan 232000, China
3.
Anhui Province Key Laboratory of Special Welding Technology, Huainan 232000, China
4.
Chinese Academy of Sciences, Hefei 230031, China

摘要

摘要: 为解决中国聚变工程实验堆316L不锈钢焊缝超声波检测时，探头扫查空间受限、检测信噪比低的难题，提出了基于双晶面阵探头的相控阵超声检测方案.通过CIVA仿真，分析了不同聚焦参数下DMA探头的声场特征，确定对接接头的检测工艺.参考NB/T47013.3-2015《承压设备无损检测第3部分：超声检测》附录I，设计并制作了对比试块，验证了检测工艺下的声束覆盖和φ2 mm侧横孔信噪比.结果表明，DMA探头可以在有限的扫查空间内实现焊缝声束全覆盖，对比试块中不同位置的φ2 mm侧横孔信噪比大于15 dB.试验结果可为316L类不锈钢对接焊缝相控阵超声检测工艺制定提供参考.
- 中国聚变工程实验堆 /
- 不锈钢焊缝 /
- 相控阵超声 /
- 双晶面阵探头
Abstract: Aiming at solving the problem of limited scanning space and low signal-to-noise ratio in ultrasonic testing of 316L stainless steel weld in China Fusion Engineering Testing Reactor (CFETR), a phased array ultrasonic testing technology based on dual matrix array(DMA) probe was proposed. Through CIVA simulation, the sound field of DMA probe under different focusing parameters was analyzed, and the testing technology of butt joint was determined. Referring to appendix I of NB/T47013.3-2015 "Nondestructive testing of pressure equipments-Part 3:ultrasound testing", the reference blocks were designed and manufactured to verify the beam coverage and signal-to-noise ratio of φ2 mm side drilled holes under the testing process. The results show that the DMA probe beamscan cover all the weld in limited scanning space, and the signal-to-noise ratio of φ2 mm side drilled holes in different locations of the reference block is greater than 15 dB. The experimental results can provide reference for the formulation of phased array ultrasonic testing technology for 316L stainless steel butt weld.
- CFETR /
- stainless steel weld /
- PAUT /
- DMA probe

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参考文献(11)

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316L对接焊缝相控阵超声检测工艺模拟与试验验证

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Simulation and experimental verification of phased array ultrasonic testing process in 316L butt weld

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