Ultrasonic B-scans have the advantage of providing a visual image of the corroded cross-section of the skin by showing the profile of the top and bottom surfaces. It can be used to rule out anomalies in C-scans caused by reasons unrelated to corrosion and therefore has considerable practical value. The RF data of B-scans can be processed using a Fourier spectral phase calculation to obtain the thickness as a function of position. In this work X-ray line scans using a collimated beam provide answers for the thickness of remaining metal and serve as a check of the ultrasonic B-scan results. In comparing the ultrasonic and X-ray results, it is found that, although the presence and location of corrosion revealed by the two techniques generally agree, the amount of metal loss and the detailed profile of the corroded skin often show considerable differences. Certain corrosion morphology could contribute to such differences, but their verification still awaits future destructive analysis of the blind samples using in this study.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Quantitative measurement of metal loss due to corrosion in aluminum aircraft skin


    Weitere Titelangaben:

    Quantitative Messung des Metallverlustes bei der Korrosion von Aluminiumaußenhäuten der Luftfahrt


    Beteiligte:
    Hsu, D.K. (Autor:in) / Patton, T.C. (Autor:in) / Dayal, V. (Autor:in) / Hinzie, B.L. (Autor:in) / Gray, J.N. (Autor:in)


    Erscheinungsdatum :

    1996


    Format / Umfang :

    7 Seiten, 4 Bilder, 5 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Corrosion detection in aircraft skin

    Syed, Hazari I. / Cramer, K. Elliott | SPIE | 1993


    Thermographic NDE Application for Quantitative Disbond and Corrosion Detection in Aircraft Skin

    Syed, H. I. / Winfree, W. P. / Cramer, K. E. et al. | British Library Conference Proceedings | 1993


    Thermographic detection of corrosion in aircraft skin

    Syed, H.I. / Winfree, W.P. / Cramer, K.E. et al. | Tema Archiv | 1993


    Environmental Durability of Aircraft Aluminum Alloy Skin Materials

    Eftekhari, A. / Chaudhuri, J. / Patni, K. et al. | SAE | 1993


    Quantitative thermal wave imaging of corrosion on aircraft

    Han, Xiaoyan / Favro, L.D. / Ahmed, T. et al. | Tema Archiv | 1997