On Limitations of the Ultrasonic Characterization of Pieces Manufactured with Highly Attenuating Materials
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2015
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Abstract
Some technical aspects of two Spanish cooperation projects, funded by DPI and Innpacto Programs of the R&D National Plan, are discussed. The objective is to analyze the common belief about than the ultrasonic testing in MHz range is not a tool utilizable to detect internal flaws in highly attenuating pieces made of coarse-grained steel. In fact high-strength steels, used in some safe industrial infrastructures of energy & transport sectors, are difficult to be inspected using the conventional “state of the art” in ultrasonic technology, due to their internal microstructures are very attenuating and coarse-grained. It is studied if this inspection difficulty could be overcome by finding intense interrogating pulses and advanced signal processing of the acquired echoes. A possible solution would depend on drastically improving signal-to-noise-ratios, by applying new advances on: ultrasonic transduction, HV electronics for intense pulsed driving of the testing probes, and an “ad-hoc” digital processing or focusing of the received noisy signals, in function of each material to be inspected. To attain this challenging aim on robust steel pieces would open the possibility of obtaining improvements in inspecting critical industrial components made of highly attenuating & dispersive materials, as new composites in aeronautic and motorway bridges, or new metallic alloys in nuclear area, where additional testing limitations often appear.
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Publisher Copyright: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.
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Ultrasonic testing, Flaws detection, Attenuating materials, Coarse-grained steel, Ultrasonic testing, Flaws detection, Attenuating materials, Coarse-grained steel, General Physics and Astronomy, SDG 9 - Industry, Innovation, and Infrastructure, Funding Info, The Spanish I+D National Plan (MINECO), by funding the Projects: Fundamental Research / DPI2011 – 22438,_x000D_ and INNPACTO Program / IMAAD - IPT-020000-2010-0004., The Spanish I+D National Plan (MINECO), by funding the Projects: Fundamental Research / DPI2011 – 22438,_x000D_ and INNPACTO Program / IMAAD - IPT-020000-2010-0004.
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conference output
Citation
Ramos , A , Moreno , E , Rubio , B , Calas , H , Galarza , N , Rubio , J , Diez , L , Castellanos , L & Gómez , T 2015 , ' On Limitations of the Ultrasonic Characterization of Pieces Manufactured with Highly Attenuating Materials ' , Physics Procedia , vol. 63 , pp. 152-157 . https://doi.org/10.1016/j.phpro.2015.03.025