TY - GEN A1 - Staron, Peter A1 - Beckmann, Felix A1 - Lippmann, Thomas A1 - Stark, Andreas A1 - Oehring, Michael A1 - Pyczak, Florian A1 - Salgado, Mario A1 - Hort, Norbert A1 - Eckerlebe, Horst A1 - Kainer, Karl Ulrich A1 - Müller, Martin A1 - Schreyer, Andreas T1 - In situ studies of light metals with synchrotron radiation and neutrons T2 - Materials Science Forum Y1 - 2011 SN - 1662-9752 IS - 690 SP - 192 EP - 197 ER - TY - GEN A1 - Stark, Andreas A1 - Oehring, Michael A1 - Pyczak, Florian A1 - Schreyer, Andreas T1 - In Situ Observation of Various Phase Transformation Paths in Nb-Rich TiAl Alloys during Quenching with Different Rates T2 - Advanced Engineering Materials Y1 - 2011 SN - 1527-2648 VL - 18 IS - 8 SP - 700 EP - 704 ER - TY - GEN A1 - Bolz, Sebastian A1 - Oehring, Michael A1 - Lindemann, Janny A1 - Pyczak, Florian A1 - Paul, Jonathan A1 - Stark, Andreas A1 - Lippmann, Thomas A1 - Roth-Fagaraseanu, Dan A1 - Schreyer, Andreas A1 - Weiß, Sabine A1 - Schrüfer, Susanne T1 - Microstructure and mechanical properties of a forged beta-solidifying gamma TiAl alloy in different heat treatment conditions T2 - Intermetallics Y1 - 2015 VL - 2015 IS - 58 SP - 71 EP - 83 ER - TY - CHAP A1 - Wang, Li A1 - Pyczak, Florian A1 - Gabrisch, Heike A1 - Lorenz, Uwe A1 - Münch, Mathias A1 - Schimansky, Frank-Peter A1 - Schreyer, Andreas A1 - Stark, Andreas T1 - Effects of Carbon Content, Annealing Condition and Internal Defects on the nucleation, growth and coarsening of P-type Carbides in High Niobium Containing TiAl Alloys T2 - Advanced structural and functional intermetallic-based alloys, November 30 - December 5, 2014, Boston, Massachusetts, USA Y1 - 2015 SN - 978-1-5108-0634-4 SP - 61 EP - 66 PB - Curran CY - Red Hook, NY ER - TY - GEN A1 - Wang, Li A1 - Gabrisch, Heike A1 - Lorenz, Uwe A1 - Schimansky, Frank-Peter A1 - Schreyer, Andreas A1 - Stark, Andreas A1 - Pyczak, Florian T1 - Nucleation and thermal stability of carbide precipitates in high Nb containing TiAl alloys T2 - Intermetallics Y1 - 2015 U6 - https://doi.org/10.1016/j.intermet.2015.07.001 SN - 0966-9795 VL - 66 SP - 111 EP - 119 ER - TY - GEN A1 - Laipple, Daniel A1 - Stark, Andreas A1 - Schimansky, Frank-Peter A1 - Schwebke, Bernd A1 - Pyczak, Florian A1 - Schreyer, Andreas T1 - Microstructure of Ti-45Al-5Nb and Ti-45Al-10Nb powders T2 - Key Engineering Materials Y1 - 2016 U6 - https://doi.org/10.4028/www.scientific.net/KEM.704.214 SN - 1662-9795 VL - 704 SP - 214 EP - 222 ER - TY - GEN A1 - Oehring, Michael A1 - Lindemann, Janny A1 - Pyczak, Florian A1 - Paul, Jonathan A1 - Stark, Andreas A1 - Lippmann, Thomas A1 - Schrüfer, Susanne A1 - Roth-Fagaraseanu, Dan A1 - Schreyer, Andreas A1 - Weiß, Sabine T1 - Microstructure and mechanical properties of a forged β-solidifying γ TiAl alloy in different heat treatment conditions T2 - Intermetallics N2 - In the cast condition g titanium aluminide alloys that solidify completely through the b phase are characterized by fine and homogeneous microstructures, weak textures and low segregation. For these reasons such alloys have a relatively good workability and can be closed-die forged without preceding ingot breakdown even if the alloys contain no large fractions of the b phase at the working temperature. The present work was devoted to a combined study of the constitution and microstructural morphologies that develop in various two-step heat treatments of a single-step forged b solidifying alloy. The study included high-energy X-ray diffraction for in situ investigations of the constitution at the heat treatment temperature. It was observed that the phase ransformations are quite sluggish in the material which results in fine microstructures and some conditions that significantly deviate from thermodynamic equilibrium. Further, tensile and creep testing was carried out on the different material conditions in order to identify the range in which the properties can be varied. It is found that this easily forgeable material exhibits comparable strength, ductility and creep strength as more conventional peritectically solidifying alloys. KW - TiAl KW - Titanium Aluminides KW - hot die forging KW - TNB-V4 Y1 - 2015 UR - http://www.sciencedirect.com/science/article/pii/S096697951400301X U6 - https://doi.org/10.1016/j.intermet.2014.11.008 SN - 0966-9795 VL - 2015 IS - 58 SP - 71 EP - 83 ER - TY - GEN A1 - Stark, Andreas A1 - Oehring, Michael A1 - Pyczak, Florian A1 - Lippmann, Thomas A1 - Lottermoser, Lars A1 - Schreyer, Andreas T1 - The transformation mechanism of β phase to ω-related phases in Nb-rich γ-TiAl alloys studied by in situ high-energy X-ray diffraction T2 - Materials Science Forum Y1 - 2014 SN - 1662-9752 IS - 772 SP - 85 EP - 89 ER - TY - CHAP A1 - Stark, Andreas A1 - Schwaighofer, Emanuel A1 - Mayer, Svea A1 - Clemens, Helmut A1 - Lippmann, Thomas A1 - Lottermoser, Lars A1 - Schreyer, Andreas A1 - Pyczak, Florian T1 - In situ high-energy XRD study of the hot-deformation behavior of a novel γ-TiAl alloy T2 - Intermetallic-based alloys - science, technology and applications, symposium held November 25-30, Boston, Massachusetts, U.S.A Y1 - 2013 U6 - https://doi.org/10.1557/opl.2012.1577 SP - 35 EP - 40 PB - Cambridge Univ. Press CY - Cambridge ER - TY - CHAP A1 - Rackel, Marcus W. A1 - Stark, Andreas A1 - Gabrisch, Heike A1 - Schimansky, Frank-Peter A1 - Schell, Norbert A1 - Schreyer, Andreas A1 - Pyczak, Florian T1 - In situ synchrotron radiation measurements of orthorhombic phase formation in an advanced TiAl alloy with modulated microstructure T2 - Advanced structural and functional intermetallic-based alloys, November 30 - December 5, 2014, Boston, Massachusetts, USA Y1 - 2015 SN - 978-1-5108-0634-4 SP - 120 EP - 126 PB - Curran CY - Red Hook, NY ER -