Experimental validation of a phased array probe model in ultrasonic inspection

Lei, Xiangyu; Wirdelius, Håkan; Rosell, Anders

doi:10.1016/j.ultras.2020.106217

Cited by 12 publications

(5 citation statements)

References 13 publications

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“…The attenuation factor

can be calculated using Equation (7), where V1 is the amplitude without loss, and V2 is the amplitude with loss. The attenuation dB can also be obtained by increasing or reducing it until it reaches the reference level, such as 80% FSH by particle [ 37 ].

…”

Section: Theory and Methodologymentioning

confidence: 99%

Ultrasonic Velocity and Attenuation of Low-Carbon Steel at High Temperatures

Tai,

Sultan,

Łukaszewicz

et al. 2023

Materials

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On-stream inspections are the most appropriate method for routine inspections during plant operation without undergoing production downtime. Ultrasonic inspection, one of the on-stream inspection methods, faces challenges when performed at high temperatures exceeding the recommended 52 °C. This study aims to determine the ultrasonic velocity and attenuation with known material grade, thickness, and temperatures by comparing theoretical calculation and experimentation, with temperatures ranging between 30 °C to 250 °C on low-carbon steel, covering most petrochemical equipment material and working conditions. The aim of the theoretical analysis was to obtain Young’s modulus, Poisson’s ratio, and longitudinal velocity at different temperatures. The experiments validated the theoretical results of ultrasonic change due to temperature increase. It was found that the difference between the experiments and theoretical calculation is 3% at maximum. The experimental data of velocity and decibel change from the temperature range provide a reference for the future when dealing with unknown materials information on site that requires a quick corrosion status determination.

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“…The attenuation factor

…”

Section: Theory and Methodologymentioning

confidence: 99%

Ultrasonic Velocity and Attenuation of Low-Carbon Steel at High Temperatures

Tai,

Sultan,

Łukaszewicz

et al. 2023

Materials

View full text Add to dashboard Cite

show abstract

“…Its superiority over UT is evident in its multiple-element probe, which permits flexible beam steering, rendering superior scan coverage and speed [65,66]. The proficiency of PAUT is reflected in its ability to provide threedimensional defect information through S-scan, C-scan, D-scan, and A-scan data, as shown in Figure 2 [67,68]. Comparative studies have affirmed the advantages of PAUT over traditional UT.…”

Section: Phased Array Corrosion Mapping Applicationmentioning

confidence: 99%

Enhancing Turnaround Maintenance in Process Plants through On-Stream Phased Array Corrosion Mapping: A Review

Tai,

Sultan,

Łukaszewicz

et al. 2024

Preprint

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This review paper aims to understand the current processing plant maintenance systems and further identify on-stream phased array corrosion mapping (PACM) to reduce turnaround maintenance (TAM) activity during plant operations. Reducing the TAM duration and extending the TAM interval are common goals of most researchers. Thus, a detailed review was performed to understand the maintenance systems and the problems faced. Furthermore, a review of the current PACM application and the possibility of applying it during on-stream inspection was also per-formed. PACM has better detectability for localized corrosion, and the results can be obtained for a range of thicknesses, which is the main advantage of this method. The challenge is to apply it to a surface with high temperatures, owing to the greater probe contact and the limitation of ultrasonic properties. This literature review provides a more precise direction for future research to evaluate PACM on piping that can be utilized in inspection during plant operation at elevated temperatures. Detecting and monitoring corrosion growth without shutdown.

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“…The attenuation factor 𝛼 can be calculated by equation (7), where V1 is the amplitude without loss, and V2 is the amplitude with loss. The attenuation dB can also be obtained by increasing or reducing it until it reaches the reference level, such as 80% FSH by particle [32].…”

Section: 𝑉 = 𝑓𝜆mentioning

confidence: 99%

Ultrasonic Velocity and Attenuation of Low Carbon Steel at High Temperatures

Tai,

Sultan,

Łukaszewicz

et al. 2023

Preprint

View full text Add to dashboard Cite

On-stream inspections are the most appropriate method for routine inspections during plant operation without going through production downtime. Ultrasonic inspection, one of the on-stream inspection methods, faces challenges when performed at high temperatures exceeding the recommended 52°C. This study aims to determine the ultrasonic velocity and attenuation with the known material grade, thickness, and temperatures by comparing theory calculation versus experiment with temperatures ranging between 30°C to 250°C on low carbon steel covering most petrochemical equipment material and working conditions. The theoretical analysis was to obtain Young's modulus, Poisson's ratio, and longitudinal velocity at different temperatures. The experiments validated the predicted results of ultrasonic change due to temperature increase and showed a maximum error of 3%. The experimental data of velocity and decibel change from the temperature range provide a reference for the future when dealing with unknown materials information on site that require a quick corrosion status determination.

show abstract

Experimental validation of a phased array probe model in ultrasonic inspection

Cited by 12 publications

References 13 publications

Ultrasonic Velocity and Attenuation of Low-Carbon Steel at High Temperatures

Ultrasonic Velocity and Attenuation of Low-Carbon Steel at High Temperatures

Enhancing Turnaround Maintenance in Process Plants through On-Stream Phased Array Corrosion Mapping: A Review

Ultrasonic Velocity and Attenuation of Low Carbon Steel at High Temperatures

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