基于双面阵探头的厚壁奥氏体不锈钢对接焊缝的相控阵超声检测

基金项目:

浙江省质监系统质量技术基础建设项目（20180119）

详细信息

Phased array ultrasonic detection of thick walled austenitic stainless steel butt

1. Ningbo Labor Safety and Technology Services Co., Ltd., Ningbo 315048, China;
2. Ningbo Special Equipment Inspection and Research Institute, Ningbo 315048, China

摘要: 焊缝奥氏体组织具有晶粒粗大和各向异性等特点，线阵相控阵、常规超声和射线检测技术均存在一定的局限性和不足。基于DMA（双面阵）相控阵探头，采用以色列ISONIC 2009型相控阵检测仪器，对NB/T 47013. 3-2015附录I中的3号对比试块进行了B扫和C扫成像，并对40 mm厚的模拟试块进行了检测比对分析，结果表明，基于DMA探头的相控阵超声检测方法在厚壁奥氏体对接焊缝的检测中具有较高的可行性，可以用于实际检测中。
- 厚壁对接焊缝 /
- 奥氏体不锈钢 /
- DMA探头 /
- 相控阵超声
Abstract: The austenite structure of weld is characteristics of coarse grain and anisotropy. There are some limitations and deficiencies in linear array phased array, conventional ultrasonic and radiographic testing technology. Based on DMA (dual matrix array) phased array probe and using Israel ISONIC 2009 phased array detector, with NB/T 47013. 3-2015 appendix I No. 3 reference block being for B-scan and C-scan imaging, test result for 40 mm thick simulation test block were compared and analyzed. The results show that the ultrasonic phased array detection method based on DMA probe has high feasibility in thick walled austeniticed butt weld inspection, and can be used in practical inspection.
- thick wall butt weld /
- austenitic stainless steel /
- DMA probe /
- phased array ultrasonic

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