Application of laser-generated guided wave for evaluation of corrosion in carbon steel pipe

Lee, Joon-Hyun; Lee, Seung-Joon

doi:10.1016/j.ndteint.2008.09.011

Cited by 62 publications

(23 citation statements)

References 5 publications

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“…Wall thinning caused by flow accelerated corrosion (FAC) under high temperature and high velocity fluid flow conditions is a serious problem in industrial facilities such as pressure vessel [1][2][3]. To assure the reliability of such kind of structures, the method to assess and evaluate their conditions with safety issue has become important.…”

Section: Introductionmentioning

confidence: 99%

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Cho

2015

Sensors and Actuators A: Physical

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Section: Introductionmentioning

confidence: 99%

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Cho

2015

Sensors and Actuators A: Physical

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“…This advantage of the guided wave approach provides the possibility to inspect inaccessible or hidden areas [1,2]. The waves can propagate over considerable distances without point-bypoint scanning, and the wave propagation interacts throughout the entire thickness of the structure, which means that it not only find surface defects, but also internal defects [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Guided-Wave Tomographic Imaging of Plate Defects by Laser-Based Ultrasonic Techniques

Park¹,

Lim²,

Cho

2014

Journal of the Korean Society for Nondestructive Testing

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Contact-guided-wave tests are impractical for investigating specimens with limited accessibility and rough surfaces or complex geometric features. A non-contact setup with a laser-ultrasonic transmitter and receiver is quite attractive for guided-wave inspection. In the present work, we developed a non-contact guided-wave tomography technique using the laser-ultrasonic technique in a plate. A method for Lamb-wave generation and detection in an aluminum plate with a pulsed laser-ultrasonic transmitter and Michelson-interferometer receiver was developed. The defect shape and area in the images obtained using laser scanning, showed good agreement with the actual defect. The proposed approach can be used as a non-contact online inspection and monitoring technique.

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“…The corrosion defect is one of serious concern to several industries like nuclear, chemical and petrol industries. Such defects can occur severe economic and social damage, that's why it's so important to detect them as soon as possible to avoid those lost [1,2].…”

Section: Introductionmentioning

confidence: 99%

The numerical modeling and the infrared thermography principle applied to the analysis of corrosion defects in oil Conduits

Laaidi¹,

Belattar²

2012

Proceedings of the 2012 International Conference on Quantitative InfraRed Thermography

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Currently the corrosion phenomenon becames a serious concern to several industries of metals and particularly of steel like nuclear, chemical and petrol industries. Such defects can occur severe economic and social damage, that's why it's so important to detect them as soon as possible to avoid those lost. The purpose of the study is to show by calculating of surface temperature the effect of corrosion defect which can exist in these conduits. To undertake the study we modelled conduit (tube) by a steel cylinder and the defect by a circular layer of rust. Dimensions of the cylinder and those of the layer of rust are taken as parameters. To see the effect of each geometrical parameter on the thermal state of the considered structure we studied the thermal state of the structure by taking this parameter like variable and all the others as constant.In fact, when a material is thermically requested (artificial excitation in the case of Laboratory measurements or natural excitation in the case of in-situ measurements), the heat diffuse in uniform way in material. The presence of a defect within the material (e.g. a crack or a rusted layer) acts like a heat insulator and idle this diffusion. It follows from there the appearance of a hotter region on the surface compared to the close one without anomaly. The study is undertaken on a cylindrical structure, as on the figure below, of geometrical parameters: external diameter d=254mm. The cylinder thickness ep =19mm, the length of tube l =1m. In order to detect the rust thermal effect on the thermal state of the steel pipe, many situations are considered. The study concerns the effect of rust thickness, rust depth and finally the number of rust layers in pipe on the surface temperature at the structure.

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Application of laser-generated guided wave for evaluation of corrosion in carbon steel pipe

Cited by 62 publications

References 5 publications

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Quantification and imaging of corrosion wall thinning using shear horizontal guided waves generated by magnetostrictive sensors

Guided-Wave Tomographic Imaging of Plate Defects by Laser-Based Ultrasonic Techniques

The numerical modeling and the infrared thermography principle applied to the analysis of corrosion defects in oil Conduits

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