Probability of detection of discontinuities by ultrasonic phased array inspection of 9% Ni steel joints welded with alloy 625 as the filler metal

Filho, João da Cruz Payão; Maia, Vinicius Pereira; Passos, Elisa Kimus Dias; Gonzaga, Rodrigo Stohler; Juliano, Diego Russo

doi:10.1016/j.ultras.2021.106582

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…PoD procedure provides an upgrade procedure to assess the detectability of any defects and discontinuities generated from the manufacturing process or fabricated during operation, and it can be rendered using two statistical models, based on the output data of the utilized NDT technique. [110][111][112] The PoD is a very stable and potent approach, including and involving all the sources of NDT variability in a quantitative estimation, but it is expensive, time-consuming, and requires enormous data collection. 113 In this regard, a model-assisted PoD can be used to replace some of the empirical data with simulation data to facilitate and reduce the costs.…”

Section: Complex Geometries and Compositesmentioning

confidence: 99%

Ultrasonic and phased-array inspection in titanium-based alloys: A review

Shi

Ebrahimi

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Ultrasonic testing procedures are among the most extensively used techniques in non-destructive testing and non-destructive evaluation systems. Meanwhile, phased array inspection or phased-array ultrasonic testing techniques as a well-known type of ultrasonic testing in advanced non-destructive testing systems are utilized in numerous applications, including oil and gas, medical imaging applications, railway, automotive, marine, and aviation industries. Phased-array ultrasonic testing-based methods can also be used in a variety of weld inspections, bond testing, thickness profiling, flaw detections, corrosion inspections, and in-service crack detection. The rapidity, safety, easiness, affordable price, and accurate visualization of phased array in measuring the defect characteristics such as size, shape, depth, and orientation allow its wide usage and even as a substitute for other inspection methods like radiographic methods. In phased array methods, more than one sound wave is employed to enhance the reliability and flexibility of inspection through the operation of several transducer assemblies, involving 16 to 256 small individual elements. Titanium having many desirable properties like high strength to weight ratio found many industrial applications, which highly necessitates its persistent inspection. For this aim, the present study focuses on the application of the phased-array ultrasonic testing technique for inspecting Ti components specifically in additive manufacturing, welding inspections, and defect detection of complex geometries and composites. Moreover, modern applications and improved computation methods are discussed. The development of phased-array ultrasonic testing inspection systems, particularly high throughput and efficient in situ and mobile equipment, and new computation methods will open new horizons toward the highly sophisticated inspection procedures.

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Section: Complex Geometries and Compositesmentioning

confidence: 99%

Ultrasonic and phased-array inspection in titanium-based alloys: A review

Shi

Ebrahimi

Zhou

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…Using an ultrasonic phased array to measure the contact stress of the sealing surface in a full-size tubing test has been tried in a previous paper [36]. However, the ultrasonic phased array is more for the location and quantitative identification of defects [37,38]. In terms of the premium connection, the ultrasonic phased array signal distribution on the sealing surface and the ultrasonic characterisation of contact stress evolution have been reported on little thus far.…”

Section: Introductionmentioning

confidence: 99%

Measurement and Evaluation of Metal-to-Metal Seals Sealability by Ultrasonic Phased Array

Han

Fan

2023

Metals

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The magnitude and distribution of contact stress on the metal-to-metal seal interface of premium connection has been confirmed as a direct factor of the sealing integrity. In this study, the method of evaluating sealability by measuring contact stress on metal-to-metal seals with the ultrasonic phased array is investigated. A loading system and ultrasonic phased array measurement system of cone-cone contact samples were created. The recommended detection method is focusing -deflection, and the time compensation method is suggested to extract the reflected wave peak of the sealing surface. The experiments show that the reflected wave peak declines with the rise of the axial load, with the big end showing the most noticeable reduction. The shift in the reflected wave peak also reflects the axial movement of the contact interface. The contact stress is calculated according to the reflection coefficient and compared with the simulation results. The distribution trend of contact stress is consistent. The sealing index measurement error is less than 15%, and the measurement error is decreased with the decrease of the sealing surface angle. Then, the nephogram of contact stress distribution on the sealing surface is formed to visualize the contact stress, which takes on great significance in engineering.

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