Ultrasonic Measurement of Microstructural Anisotropy in a Ni-Based Superalloy Fabricated by Direct Laser Deposition

Yao, Di

doi:10.1007/s10921-023-00971-9

J Nondestruct Eval

2023

DOI: 10.1007/s10921-023-00971-9

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Ultrasonic Measurement of Microstructural Anisotropy in a Ni-Based Superalloy Fabricated by Direct Laser Deposition

Di Yao

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2024

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Cited by 2 publications

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Role of image feature enhancement in intelligent fault diagnosis for mechanical equipment: A review

Sun,

Wang

2024

Engineering Failure Analysis

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Role of image feature enhancement in intelligent fault diagnosis for mechanical equipment: A review

Sun,

Wang

2024

Engineering Failure Analysis

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Assessment of Anisotropic Acoustic Properties in Additively Manufactured Materials: Experimental, Computational, and Deep Learning Approaches

Malashin,

Tynchenko,

Martysyuk

et al. 2024

Sensors

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The influence of acoustic anisotropy on ultrasonic testing reliability poses a challenge in evaluating products from additive technologies (AT). This study investigates how elasticity constants of anisotropic materials affect defect signal amplitudes in AT products. Experimental measurements on AT samples were conducted to determine elasticity constants. Using Computational Modeling and Simulation Software (CIVA), simulations explored echo signal changes across ultrasound propagation directions. The parameters A13 (the ratio between the velocities of ultrasonic transverse waves with vertical and horizontal polarizations at a 45-degree angle to the growth direction), A3 (the ratio for waves at a 90-degree angle), and Ag (the modulus of the difference between A13 and A3) were derived from wave velocity relationships and used to characterize acoustic anisotropy. Comparative analysis revealed a strong correlation (0.97) between the proposed anisotropy coefficient Ag and the amplitude changes. Threshold values of Ag were introduced to classify anisotropic materials based on observed amplitude changes in defect echo signals. In addition, a method leveraging deep learning to predict Ag based on data from other anisotropy constants through genetic algorithm (GA)-optimized neural network (NN) architectures is proposed, offering an approach that can reduce the computational costs associated with calculating such constants.

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Ultrasonic Measurement of Microstructural Anisotropy in a Ni-Based Superalloy Fabricated by Direct Laser Deposition

Cited by 2 publications

References 23 publications

Role of image feature enhancement in intelligent fault diagnosis for mechanical equipment: A review

Role of image feature enhancement in intelligent fault diagnosis for mechanical equipment: A review

Assessment of Anisotropic Acoustic Properties in Additively Manufactured Materials: Experimental, Computational, and Deep Learning Approaches

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