%0 journal article
%@ 0921-5093
%A Wimler, D., Lindemann, J., Gammer, C., Spoerk-Erdely, P., Stark, A., Clemens, H., Mayer, S.

%D 2020
%J Materials Science and Engineering: A

%P 139798 
%R doi:10.1016/j.msea.2020.139798
%T Novel intermetallic-reinforced near-α Ti alloys manufactured by spark plasma sintering
%U https://doi.org/10.1016/j.msea.2020.139798
 
%X Spark plasma sintering at 1150 °C of powder blends with 10 m.% spherical γ-TiAl based powder (<20 μm) leads to a homogeneous dissolution of the TiAl particles in the matrix material and a refinement of the lamellar microstructure. Due to the formation of ordered intermetallic α2-Ti3Al precipitates, which are completely stable up to 670 °C in the newly evolved Ti-8.3Al-1.8Sn-3.7Zr-2.0Mo-0.9Nb-0.08Si alloy (m.%), the creep resistance at 600 °C has been increased significantly. In the B containing variant, it was found that finely distributed titanium borides TiB formed in the Ti6242 matrix and led to an even more pronounced refinement of the microstructure. For B additions of 1 m.%, however, the creep resistance at 600 °C is reduced compared to the other alloys, but the strength is increased up to 500 °C.