Ultrasonic array imaging and multi-probe pulse echo inspection are two common ultrasonic techniques used for defect detection, classification and characterization in non-destructive evaluation. Compared to multi-probe pulse echo inspection, ultrasonic array imaging offers some advantages such as higher resolution images and the requirement to obtain fewer measurements. However, it is also limited by a lack of industry-approved inspection procedures and standards. In this paper, several artificial planar and volumetric weld defects of different orientations and locations embedded in 60 mm thick welded ferritic test specimens were measured using both ultrasonic arrays and multiple single crystal probes. The resultant TFM images and echodynamic curves for each defect were compared and the results demonstrate the correlations between TFM image features and echodynamic curve characteristics. Combining the analysis of multi-probe pulse echo inspection data and ultrasonic array images offers better classification and characterization of defects. These findings benefit the further development of industrial ultrasonic array inspection procedures and encourage the uptake of TFM technology within industry.
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31 March 2015
41ST ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Volume 34
20–25 July 2014
Boise, Idaho
Research Article|
March 31 2015
Comparison of ultrasonic image features with echodynamic curves for defect classification and characterization
Jie Zhang;
Jie Zhang
Department of Mechanical Engineering, University Walk, University of Bristol, Bristol BS8 1TR,
United Kingdom
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Sam Wedge;
Sam Wedge
AMEC, Clean Energy - Europe, Walton House, Birchwood Park, Warrington, WA3 6GA,
United Kingdom
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Allan Rogerson;
Allan Rogerson
AMEC, Clean Energy - Europe, Walton House, Birchwood Park, Warrington, WA3 6GA,
United Kingdom
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Bruce Drinkwater
Bruce Drinkwater
Department of Mechanical Engineering, University Walk, University of Bristol, Bristol BS8 1TR,
United Kingdom
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AIP Conf. Proc. 1650, 970–977 (2015)
Citation
Jie Zhang, Sam Wedge, Allan Rogerson, Bruce Drinkwater; Comparison of ultrasonic image features with echodynamic curves for defect classification and characterization. AIP Conf. Proc. 31 March 2015; 1650 (1): 970–977. https://doi.org/10.1063/1.4914703
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