%0 journal article %@ 1438-1656 %A Appel, F., Oehring, M., Paul, J.D.H. %D 2006 %J Advanced Engineering Materials %N 5 %P 371-376 %R doi:10.1002/adem.200600013 %T Nano-Scale Design of TiAl Alloys Based on beta-phase Decomposition %U https://doi.org/10.1002/adem.200600013 5 %X Phase decomposition and ordering reactions in /B2-phase containing TiAl alloys were utilized to establish a novel, previously unreported, type of laminate microstructure. The characteristic constituent of this microstructure are laths with a nanometer-scale substructure that are comprised of several stable and metastable phases. Microstructural control can be achieved by conventional thermomechanical processing and leads to a structurally and chemically very homogeneous material with excellent mechanical properties. The physical metallurgy of this novel type of alloy has been assessed by transmission electron microscope investigations and mechanical testing.