Nondestructive testing of austenitic welds using method of ultrasonic array

被引：0
作者：
Yang J. [1 ,2 ]
Wu B. [1 ]
Jiao J. [1 ]
Wang Y. [1 ]
He C. [1 ]
机构：
[1] Faculty of Materials and Manufacturing Beijing University of Technology, Beijing
[2] Beijing Aerospace Measurement and Control Technology Co., Ltd., Beijing
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2022年 / 43卷 / 02期
关键词：
Austenitic stainless steel welds; Decomposition of the time-reversal operator; Ray tracing method; Total focus imaging; Ultrasonic arrays;
D O I：
10.12073/j.hjxb.20210617001
中图分类号：
学科分类号：
摘要：
Under the action of welding thermal cyclic load, the internal peritectic structure of austenitic stainless steel weld is coarse columnar crystal, and its orientation is anisotropic in different areas of the weld. The nondestructive testing of austenitic stainless steel welds is conducted using method of ultrasonic array for the ultrasonic scattering caused by coarse columnar crystals and the sound beam deflection caused by different grain orientations. A signal analysis method based on decomposition of the time-reversal operator is developed for noise reduction processing of ultrasound full matrix data. Using ray tracing method, the ultrasonic wave propagation path determination method in anisotropic media was investigated and applied to the correction of beam deflection for ultrasonic array total focus imaging of austenitic stainless steel welds. Nondestructive testing of austenitic stainless steel welds was conducted using ultrasonic array, and the results showed that the time-reversal operator-based decomposition method was effective for the suppression of scattering noise in the detection signal and highlight the echoes from defects, which can improve the signal-to-noise ratio of full-focus imaging by 10 dB, moreover the beam deflection correction can improve the accuracy of defect localization in total focus imaging of ultrasonic arrays. Copyright © 2022 Transactions of the China Welding Institution. All rights reserved.
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页码：1 / 10
页数：9
相关论文
共 25 条
[1]  
Chai F, Yan F, Wang W, Et al., Microstructures and mechanical properties of AZ91 alloys prepared by multi-pass friction stir processing, Journal of Materials Research, 33, 12, pp. 1789-1796, (2018)
[2]  
Xue P, Zhang X X, Wu L H, Et al., Research progress on friction stir welding and processing, Acta Metallurgica Sinica, 52, 10, pp. 1222-1238, (2016)
[3]  
Li Guijiang, Peng Qian, Li Cong, Et al., Microstrueture analysis for 316L austenitic stainless steel after QPQ complex salt bath heat treatment, Heat Treatment of Metals, 10, pp. 23-25, (2007)
[4]  
Yan Zegang, Wang Kehong, Researching on microstructural properties of HNS Cr22Mn18NiN welded joints, Machine Building &Automation, 46, 5, pp. 45-47, (2017)
[5]  
Taheri H, Kilpatrick M, Norvalls M, Et al., Investigation of nondestructive testing methods for friction stir welding, Metals-Open Access Metallurgy Journal, 9, 6, pp. 1-12, (2019)
[6]  
Li W, Zhou Z, Li Y., Inspection of butt welds for complex surface parts using ultrasonic phased array, Ultrasonics, 96, pp. 75-82, (2019)
[7]  
Liu Q, Wirdelius H., A 2D model of ultrasonic wave propagation in an anisotropic weld, NDT & E International, 40, 3, pp. 229-238, (2007)
[8]  
Hu Hongwei, Wang Zexiang, Peng Lingxing, Et al., Immersion ultrasonic imaging using the synthetic aperture focusing technique based on the root mean square velocity, Chinese Journal of Scientific Instrument, 37, 2, pp. 365-370, (2016)
[9]  
Ogilvy J A., Ultrasonic beam profiles and beam propagation in an austenitic weld using a theoretical ray tracing model, Ultrasonics, 24, 6, pp. 337-347, (1986)
[10]  
Schmitz V, Walte F, Chakhlov S V., 3D ray tracing in austenite materials, NDT & E International, 32, 4, pp. 201-213, (1999)
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