Improvement of the Characterisation of Nonmetallic Inclusions Especially Focusing on High Purity Steels for Aeronautic Applications

Research output: ThesisMaster's Thesis

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Abstract

Due to the constantly increasing requirements for steels applied in the aerospace industry, a reliable characterisation of nonmetallic inclusions steadily gains importance. Out of the different described methods for inclusion analysis, the focus of this thesis lies on automated SEM/EDX investigations. On the basis of first analyses, an inclusion cluster consisting of 25 different inclusion classes especially adapted to the steel grade PH 13-8 Mo is developed which permits an inclusion categorisation over the whole process flow. Next to the comparison with a similar analysing method (P-SEM) and the variation of several influential parameters, the representativeness of this method and the applicability of the inclusion cluster on a different steel grade is tested. The results underline the potential of this analysing method.
Translated title of the contributionWeiterentwicklung der Einschlusscharakterisierung im Bezug auf höchstreine Stähle für die Luftfahrt
Original languageEnglish
QualificationDipl.-Ing.
Awarding Institution
  • Montanuniversität
Supervisors/Advisors
  • Linzbacher, Susanne, Co-Supervisor (internal)
  • Hasenhündl, Ronald, Co-Supervisor (external)
  • Krieger, Wilfried, Supervisor (internal)
Award date29 Jun 2007
Publication statusPublished - 2007

Bibliographical note

embargoed until null

Keywords

  • Nonmetallic inclusions SEM/EDX inclusion characterisation PH 13-8 Mo

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