Rainer Gerling

TL;DR: In this article, it is shown that powder metallurgy plays an important role in research and development of γ-TiAl-based alloys and that PM is an ancient technology which has been used for the processing for almost every metal or ceramic material.

TL;DR: In this paper, the correlation between the occurrence of β-phase and temperature was analyzed experimentally and compared to thermodynamic calculations, and results from in situ high-energy X-ray diffraction, texture measurements, heat treatments, scanning electron microscopy, and temperature dependent flow stress measurements were used to study the evolution of the βphase with temperature.

TL;DR: In this paper, a massive phase transformation was used for microstructural refinement of a coarse-grained fully lamellar ingot, which was characterized by hardness measurements and the variation of the c / a -ratio of the tetragonal γ-TiAl cell as obtained from X-ray diffraction.

TL;DR: In this article, a high Nb containing γ-TiAl based sheet material with 46.5 at.%Al and 9.1 at.%.Nb has been tested in order to analyse the influence of microstructure and texture on creep.

TL;DR: The first Alloy powders were produced by Argon gas atomization as discussed by the authors, where the powder fraction consisted of 2.5 × 2.2 × 9 Nb (at.%).