压力容器2025，Vol.42Issue(2)：71-79,9.DOI:10.3969/j.issn.1001-4837.2025.02.009
奥氏体不锈钢对接焊缝超声相控阵多模全聚焦成像研究
Study on multi-mode total focusing imaging of austenitic stainless steel butt welds using ultrasonic phased array
摘要
Abstract
To address the challenges of ultrasonic testing for austenitic stainless steel welds,such as high detection difficulty and missed defects with single-probe methods,this study proposes a detection method based on ultrasonic phased array multi-mode total focusing imaging.By establishing a simulation model of austenitic stainless steel welds,the imaging effects under different modes were analyzed,and optimal imaging views were selected for image fusion.Experimental results demonstrate that the multi-mode total focusing imaging fusion method achieves full coverage of weld inspection,detecting side-drilled holes with 1 mm diameter and 20 mm length,with a lateral position deviation within 1 mm and high defect localization accuracy.Additionally,artifact signals related to defects are significantly reduced.This research provides critical theoretical foundations and technical support for ultrasonic testing of austenitic stainless steel welds,significantly improving the reliability and efficiency of engineering inspections.关键词
超声相控阵/多模式全聚焦/图像融合/奥氏体不锈钢/焊缝Key words
ultrasonic phased array/multi-mode total focusing/image fusion/austenitic stainless steel/welds分类
机械工程引用本文复制引用
李康,陈学东,范志超,卜阳光,陈喆,程经纬..奥氏体不锈钢对接焊缝超声相控阵多模全聚焦成像研究[J].压力容器,2025,42(2):71-79,9.基金项目
国家重点研发计划项目(2022YFC3070100) （2022YFC3070100）
国家自然科学基金项目(52202412) （52202412）
国家重点攻关项目(2023ZY01001) （2023ZY01001）
合肥通用机械研究院青年科技基金项目(2022011504) （2022011504）
