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A method for increasing the objectivity of the interpretation of weld radiographs

  • Radiography
  • Published:
Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract

Current radiography-based acceptance criteria do not always guarantee consistency in opinion among experts who are involved in interpretation of radiographs. To improve this consistency, which to a large extent determines the objectivity of the technique, the authors propose classification of radiographic images by shape and appearance in order to simplify weld-defect identification. The acceptance criteria of the RD-25.160.10 KTN-016-15 regulatory document for weld joints in Category 2 oil trunk lines are referred to as an example. The criteria that were developed on the basis of the image classification were used in a statistical experiment that involved six experts. The experiment showed that the number of cases of a substantial degree of consistency of the expert opinions increased by 2.2 times compared to the criteria that are currently in use.

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References

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Authors and Affiliations

  1. Welding and Testing Research and Training Center, Bauman State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, Russia

    N. P. Aleshin

  2. Bauman Moscow State Technical University, Vtoraya Baumanskaya ul. 5, Moscow, 105005, Russia

    D. I. Galkin

Authors
  1. N. P. Aleshin
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  2. D. I. Galkin
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Corresponding author

Correspondence to N. P. Aleshin.

Additional information

Original Russian Text © N.P. Aleshin, D.I. Galkin, 2016, published in Defektoskopiya, 2016, No. 3, pp. 18–24.

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Aleshin, N.P., Galkin, D.I. A method for increasing the objectivity of the interpretation of weld radiographs. Russ J Nondestruct Test 52, 141–145 (2016). https://doi.org/10.1134/S1061830916030025

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  • DOI: https://doi.org/10.1134/S1061830916030025

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