%0 journal article
%@ 0044-3093
%A Brossmann, U., Oehring, M., Lorenz, U., Appel, F., Clemens, H.

%D 2001
%J Zeitschrift fuer Metallkunde
%N 8
%P 1009-1014 
%R doi:10.1515/ijmr-2001-0181
%T Evolution of the Microstructure during Hot Working of Gamma-based TiAl alloys
%U https://doi.org/10.1515/ijmr-2001-0181
8 
%X Cast products of two-phase titanium aluminides suffer from microsegregation of the alloying elements, which arises from the peritectic solidification pathway. The resulting variation in composition and microstructure occurs on a length scale in the range of 1 mm and, thus, cannot be tolerated for the anticipated applications of the materials. A significant structural and chemical consolidation can be achieved by homogenization and hot-working procedures, however, the processing experience is limited. This problem is addressed in the present paper in that the evolution of the microstructure of two-phase alloys after different stages of wrought processing is characterized by structural and chemical microanalysis involving scanning electron microscopy and energy dispersive X-ray analysis. The investigations involve different two-phase alloys in order to assess the effects of ternary and higher alloying elements on the finally obtained microstructure.