Influencing factors of electromagnetic ultrasonic residual stress detectionaccuracy of X80 pipeline steel
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摘要: 管道运输中X80管线钢应用较为广泛，实际管道焊接大多使用半自动焊，难免存在焊接缺陷，在使用过程中会造成应力集中，可能导致管道破裂、石油泄漏等重大事故。为了促进电磁超声残余应力检测在管线钢中的应用，采用电磁超声系统，测试了X80管线钢残余应力检测的最佳参数。试验结果表明，电磁超声残余应力检测系统的6次回波测试精度为60 MPa；得出了电磁超声残余应力检测应力系数、信噪比随回波次数的变化关系，回波次数和应力系数、信噪比之间存在最佳取值，最后对薄板、厚板的电磁超声残余应力检测提出了一些建议。Abstract: X80 pipeline steel is widely used in pipeline transportation. Semi-automatic welding is mostly used in actual pipeline welding, which inevitably leads to welding defects and stress concentration in the process of use, resulting in major accidents such as pipeline rupture and oil leakage. In order to promote the application of electromagnetic ultrasonic residual stress detection in pipeline steel, this paper tested the best parameters of residual stress detection in X80 pipeline steel by electromagnetic ultrasonic system. The test results show that the accuracy of electromagnetic ultrasonic residual stress detection system was 60 MPa by choosing 6th echoes signal. The relationship between stress coefficient/signal-to-noise ratio (SNR) and echo times in electromagnetic ultrasonic residual stress detection was obtained through experiments. There is an optimal value between echo times and stress coefficient/SNR, and some suggestions were put forward for electromagnetic ultrasonic residual stress detection in thin and thick plates.
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Keywords:
- electromagnetic ultrasonic /
- residual stress /
- X80 pipeline steel
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[1] 路浩, 邢立伟, 邢敬伟.超声波法焊接残余应力测量技术[J].焊管, 2019, 42(8):50-55. [2] 房东.油气长输管道施工中的焊接技术分析[J].中国石油和化工标准与质量, 2022, 42(14):189-191. [3] QIU F F, HU Y Z, WANG B B, et al.Nonlinear characterization of stress wave factor for plastic damage of A7N01P-T4 aluminum alloys[J].International Journal of Modern Physics B, 2022, 36:9-11.
[4] 徐浪, 潘勤学, 宿亮, 等.焊接残余应力超声无损检测技术[J].计测技术, 2012, 32(6):29-32, 53. [5] 金希红, 曾燕军, 刘恒, 等.不同残余应力测试方法与数值模拟对比研究[J].焊接技术, 2022, 51(1):24-27, 113. [6] TABATABAEIAN A, GHASEMI A R, SHOKRIEH M M, et al.Residual stress in engineering materials:a review[J].Advanced Engineering Materials, 2022, 24(3):2100786.
[7] 徐丽霞, 李伟煜, 吕海清, 等.残余应力超声测量技术影响因素研究[J].宇航材料工艺, 2021, 51(5):139-144. [8] 于文广.管道应力超声无损测试关键技术研究[D].东营:中国石油大学(华东), 2019. [9] 刘恒, 陈兵, 邱菲菲, 等.电磁超声螺栓轴向应力测量的有限元分析与试验[J].无损检测, 2021, 43(12):12-16. [10] 齐光峰, 王安泉, 杨超, 等.基于有限元仿真的电磁超声参数优化分析[J].科技与创新, 2022(6):87-89, 93. [11] LIU Z H, DENG L M, ZHANG Y C, et al.Development of an omni-directional magnetic-concentrator-type electromagnetic acoustic transducer[J].NDT & E International, 2020, 109:102193.
[12] KANG L, ZHANG C, DIXON S, et al.Enhancement of ultrasonic signal using a new design of Rayleigh-wave electromagnetic acoustic transducer[J].NDT & E International, 2017, 86:36-43.
[13] 欧阳林婷.Q345R制卷焊容器残余应力的电磁超声测量研究[D].杭州:浙江大学, 2020.
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