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The Influence of Lithium Concentration at the Surface of Al-Li Aerospace Alloy Extrusions on Dye Penetrant Inspection

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New Technologies, Development and Application V (NT 2022)

Part of the book series: Lecture Notes in Networks and Systems ((LNNS,volume 472))

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Abstract

This paper depicts the current processing of aerospace aluminium alloy Al-Li extruded material, with emphasis on nonconformities caused by the permanent fluorescent background during dye penetrant inspection. The process for dye penetrant inspection is described in full details to provide a clear image about each individual processing step. The second part includes a series of tests performed on aluminium alloy Al-Li type material during dye penetrant inspection, as part of the root cause identification process. The last part of the paper illustrates an innovative hypothesis related to the cause behind the permanent fluorescent background during dye penetrant inspection. The innovative hypothesis related to the influence of lithium concentration at the surface of the Al-Li aerospace alloy extrusions is tested by relevant trials and results are presented as part of the conclusions.

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Author information

Authors and Affiliations

  1. Polytechnic University of Bucharest, 313 Splaiul Independenței, Bucharest, Romania

    Vlad Ciprian Cupșan

  2. Universal Alloy Corporation Europe, Dumbrăvița, Maramureș, Romania

    Vlad Ciprian Cupșan

  3. Lucian Blaga University of Sibiu, 10 Victoriei Street, Sibiu, Romania

    Aurel Mihail Titu

Authors
  1. Vlad Ciprian Cupșan
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  2. Aurel Mihail Titu
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Corresponding author

Correspondence to Vlad Ciprian Cupșan .

Editor information

Editors and Affiliations

  1. Academy of Sciences and Arts of Bosnia and Herzegovina, Sarajevo, Bosnia and Herzegovina

    Isak Karabegović

  2. Northampton Square, City University of London, London, UK

    Ahmed Kovačević

  3. Faculty of Traffic and Transport Sciences, University of Zagreb, Zagreb, Croatia

    Sadko Mandžuka

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Cupșan, V.C., Titu, A.M. (2022). The Influence of Lithium Concentration at the Surface of Al-Li Aerospace Alloy Extrusions on Dye Penetrant Inspection. In: Karabegović, I., Kovačević, A., Mandžuka, S. (eds) New Technologies, Development and Application V. NT 2022. Lecture Notes in Networks and Systems, vol 472. Springer, Cham. https://doi.org/10.1007/978-3-031-05230-9_10

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