Charakterisierung der Mikrostrukturentwicklung von "hot-die" geschmiedetem TNM - Titanaluminid

Translated title of the contribution: Characterisation of microstructure development in hot-die forged TNM - titanium aluminide

Martin Schloffer

Research output: ThesisDiploma Thesis


The aim of this diploma thesis was the microstructural characterisation of TiAl alloy TNM-B1 in the cast as well as in the thermomechanically processed state. Main focus of interest was directed towards the development of a heat treatment resulting in optimized microstructures with well-balanced mechanical properties. It was shown how grain size and phase distributions can be controlled by employing optimized heat parameters. For characterisation of the different microstructures, a data analysis allowing quantitative analysis and thorough interpretation of images obtained both by scanning electron microscopy as well as light-optical microscopy on colour-etched specimens was developed. The entire production process, starting from centrifugal casting followed by hot forging and ending with multi-step heat treatments has been investigated and the effect on phase distribution and grain size variation was analysed. The occurring mechanism during formation of the microstructure are described and supported by plausible models.
Translated title of the contributionCharacterisation of microstructure development in hot-die forged TNM - titanium aluminide
Original languageGerman
  • Clemens, Helmut, Supervisor (internal)
Award date25 Jun 2010
Publication statusPublished - 2010

Bibliographical note

embargoed until null


  • intermetallics titanium aluminide microstructure characterisation microstructural evaluation

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