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June 21, 2026NDT & E InternationalOpen Access

Recently Deposited Weld Layer-Targeted Parametric Optimization for Ultrasonic In-Process Inspection of Narrow Gap Welds

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Authors

SCSashank ChandramouliENEwan NicolsonDLDavid Lines

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Overview

Randomized trial examines ultrasonic inspection effectiveness in narrow-gap welds, indicating improved monitoring strategies.

Key Points

  • This research aims to enhance in-process ultrasonic inspection methods for narrow-gap welds used in safety-critical components.
  • Developed a parametric optimization strategy based on the recently deposited weld layer.
  • Utilized tandem plane-wave imaging for effective detection of welding defects.
  • Validated the approach on 120 mm thick NG calibration blocks with EDM notches.
  • Achieved approximately 9.39 dB higher mean signal-to-noise ratio in direct-hit mode compared to baseline methods.
  • Demonstrated enhanced defect sensitivity through Sign Coherence Factor weighting.
  • Supported acquisition rates compatible with in-process submerged arc welding.

Cite This Study

Chandramouli et al. (2026) studied this question.

synapsesocial.com/papers/6a377fdd24f042ddf4c5a2c8https://doi.org/10.1016/j.ndteint.2026.103802
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