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Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/2535
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| Title: | INVESTIGATION OF FATIGUE CRACKS IN ALUMINUM ALLOYS USING ULTRASOUND AND ELECTROMAGNETIC METHODS |
| Authors: | Steigmann, Rozina
Iftimie, Nicoleta
Dobrescu, Gabriel Silviu
Stanciu, Mariana Domnica
Craus, Mihail Liviu
Ciobanu, Catalin |
| Keywords: | aluminum alloy
thermal barrier coating
nondestructive evaluation
eddy current
ultrasound |
| Issue Date: | Oct-2020 |
| Publisher: | Transilvania University Press of Braşov |
| Citation: | http://scholar.google.ro/ |
| Series/Report no.: | COMAT 2020;156-161 |
| Abstract: | The paper presents the methods for nondestructive evaluation of aluminum alloy in order to be used as support for thermal barrier coating. Ultrasound methods are used to determine the mechanical properties. Resonant Ultrasound Spectroscopy is simulated in order to determine the influence of possible inhomogeneities in support plate over the resonance frequencies. The eigenfrequencies are influenced by the microstructure of the material. Also, a new architecture of an electromagnetic sensor in 2D structure is designed and developed in order to estimate the location of a discontinuity below the surface of a conductive material. The study of the dependence of the field distribution on the number and position of the reception coils against the discontinuity was carried out using FDTD. Spatial resolution has been improved using a known super resolution algorithm. The 2D structure was tested for the detection of subsurface discontinuities induced in Al2024 samples subjected to cyclic loading. |
| URI: | http://hdl.handle.net/123456789/2535 |
| ISSN: | 2457-8541 |
| Appears in Collections: | COMAT 2020
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