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 - TY - GEN A1 - Liang, Zhida A1 - Paul, Jonathan A1 - Stark, Andreas A1 - Bezold, Andreas A1 - Neumeier, Steffen A1 - Göken, Mathias A1 - Pyczak, Florian T1 - High-Temperature CoNi-Based Superalloys Strengthened by γ′-(Ni,Co)3(Cr,Al,Ti,X): The Effect of Refractory Elements T2 - Metallurgical and materials transactions. A, Physical metallurgy and materials science N2 - Recent research on Co-based and CoNi-based alloys revealed that the Co–Al–W-system provides interesting properties, however, the high content of W addition triggers high mass density of alloys which limits its industrial application. Therefore, new high temperature superalloys based on the Co–Ni–Al–Ti-system with high content Cr and strengthened by γ′-(Ni,Co)3(Cr,Al,Ti) precipitates, have been developed, and the effect of different refractory element additions was investigated. STEM-EDS and HEXRD were employed to determine the elemental partitioning behavior and the lattice misfit between the γ and γ′ phases. Ta and Nb strongly concentrate within the γ′ phase, whereas Mo weakly partitions to the γ phase. W distributes equally between the γ and γ′ phases. These new superalloys have an unexpectedly high positive misfit compared with some conventional Ni-based superalloys and Co-based superalloys. Nb and Ta additions increase the lattice misfit further, while Mo and W decrease the lattice misfit. The effect of refractory elements alloying on the yield stress at room temperature was evaluated by analyzing the contributions of different strengthening mechanisms. Alloying with Nb or Ta significantly improves precipitation strengthening by increasing the antiphase boundary energy. Mo has the highest solid solution strengthening effect in the γ phase, followed by W. Compared with some conventional Ni-based superalloys, the investigated new CoNi-based superalloys exhibited better mechanical properties at high temperature, which indicates that these compositionally complex alloys are possible candidates for high temperature applications. Y1 - 2022 U6 - https://doi.org/10.1007/s11661-022-06795-y SN - 1543-1940 VL - 54 (2023) IS - 5 SP - 1620 EP - 1634 ER - TY - GEN A1 - Pyczak, Florian A1 - Bauer, A. A1 - Göken, Mathias A1 - Neumeier, Steffen A1 - Lorenz, U. A1 - Oehring, Michael A1 - Schell, N. A1 - Schreyer, Andreas A1 - Stark, Andreas A1 - Szymanzik, F. T1 - Plastic Deformation Mechanisms in a Crept L12 hardened Co-Base Superalloy T2 - Materials Science and Engineering A Y1 - 2013 SN - 1873-4936 IS - 571 SP - 13 EP - 18 ER - TY - GEN A1 - Freund, Lisa P. A1 - Stark, Andreas A1 - Kirchmayer, Andreas A1 - Schell, Norbert A1 - Pyczak, Florian A1 - Göken, Mathias A1 - Neumeier, Steffen T1 - The Effect of a Grain Boundary Pinning B2 Phase on Polycrystalline Co-Based Superalloys with Reduced Density T2 - Metallurgical and Materials Transactions A Y1 - 2018 U6 - https://doi.org/10.1007/s11661-018-4757-2 SN - 1543-1940 SN - 1073-5623 VL - 49 IS - 9 SP - 4070 EP - 4078 ER - TY - GEN A1 - Stark, Andreas A1 - Rackel, Marcus W. A1 - Tchouaha Tankoua, Aristide A1 - Oehring, Michael A1 - Schell, Norbert A1 - Lottermoser, Lars A1 - Schreyer, Andreas A1 - Pyczak, Florian T1 - In situ High-Energy X-Ray Diffraction during Hot-Forming of a Multiphase TiAl Alloy T2 - Metals Y1 - 2015 SN - 2075-4701 VL - 5 IS - 4 SP - 2252 EP - 2265 ER - TY - GEN A1 - Rackel, Marcus W. A1 - Stark, Andreas A1 - Gabrisch, Heike A1 - Schell, Norbert A1 - Schreyer, Andreas A1 - Pyczak, Florian T1 - Orthorhombic phase formation in a Nb-rich γ-TiAl based alloy – an in situ synchrotron radiation investigation T2 - Acta Materialia Y1 - 2016 U6 - https://doi.org/10.1016/j.actamat.2016.09.030 SN - 1359-6454 VL - 121 SP - 343 EP - 351 ER - TY - CHAP A1 - Pyczak, Florian A1 - Rackel, Marcus W. A1 - Gabrisch, Heike A1 - Halici, Dalic A1 - Lorenz, Uwe A1 - Schreyer, Andreas A1 - Stark, Andreas T1 - In-situ monitoring of thermal treatments and hot deformation of a y-TiAl alloy by high energy X-ray diffraction T2 - Proceedings of the 1st International Conference on Advanced High-Temperature Materials Technology for Sustainable and Reliable Power Engineering (123HiMAT-2015), June 29 - July 3, 2015, Sapporo, Japan Y1 - 2015 SN - 978-4-9908874-0-7 SP - 323 EP - 326 PB - The 123rd Committee of Japan Society for the Promotion of Science, IAI CY - Tokyo ER - TY - GEN A1 - Oehring, Michael A1 - Stark, Andreas A1 - Paul, Jonathan David Heaton A1 - Lippmann, Thomas A1 - Pyczak, Florian T1 - Microstructural refinement of boron-containing β-solidifying γ-titanium aluminide alloys through heat treatments in the β phase field T2 - Intermetallics Y1 - 2012 SN - 0966-9795 IS - 32 SP - 12 EP - 20 ER - TY - GEN A1 - Schloffer, Martin A1 - Iqbal, Farasat A1 - Gabrisch, Heike A1 - Schwaighofer, Emanuel A1 - Schimansky, Frank-Peter A1 - Mayer, Svea A1 - Stark, Andreas A1 - Lippmann, Thomas A1 - Göken, Mathias A1 - Pyczak, Florian A1 - Clemens, Helmut T1 - Microstructure development and hardness of a powder metallurgical multi phase gamma-TiAl based alloy T2 - Intermetallics Y1 - 2012 U6 - https://doi.org/10.1016/j.intermet.2011.11.015 SN - 0966-9795 IS - 22 SP - 231 EP - 240 ER - TY - GEN A1 - Wang, Li A1 - Lorenz, Uwe A1 - Münch, Mathias A1 - Stark, Andreas A1 - Pyczak, Florian T1 - Influence of alloy composition and thermal history on carbide precipitation in γ-based TiAl alloys T2 - Intermetallics Y1 - 2017 SN - 0966-9795 VL - 89 SP - 32 EP - 39 ER - TY - GEN A1 - Wang, Li A1 - Zenk, Carolin A1 - Stark, Andreas A1 - Felfer, Peter A1 - Gabrisch, Heike A1 - Göken, Mathias A1 - Lorenz, Uwe A1 - Pyczak, Florian T1 - Morphology evolution of Ti3AlC carbide precipitates in high Nb containing TiAl alloys T2 - Acta Materialia Y1 - 2017 SN - 1359-6454 IS - 137 SP - 36 EP - 44 ER - TY - CHAP A1 - Hauschildt, Katja A1 - Stark, Andreas A1 - Lorenz, Uwe A1 - Schell, Norbert A1 - Fischer, Torben A1 - Blankenburg, Malte A1 - Müller, Martin A1 - Pyczak, Florian T1 - Diffusion brazing of γ-TiAl-alloys: Investigations of the joint by electron microscopy and high-energy X-ray diffraction 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.2012.1750 SP - 215 EP - 220 PB - Cambridge Univ. Press CY - Cambridge ER - TY - CHAP A1 - Stark, Andreas A1 - Oehring, Michael A1 - Pyczak, Florian ED - Palm, Martin ED - Bewlay, Bernard P. ED - Kumar, K. Sharvan ED - Yoshimi, Kyosuke T1 - Influence of Quenching Rates on the Transformation of Ternary Phases in Nb-rich γ-TiAl Alloys T2 - Intermetallic-based alloys for structural and functional applications, symposium held November 29 - December 3, Boston, Massachusetts, U.S.A Y1 - 2011 U6 - https://doi.org/doi:10.1557/opl.2011.30 SP - 107 EP - 112 PB - Cambridge Univ. Press CY - Cambridge ER - TY - GEN A1 - Tchouaha Tankoua, Aristide A1 - Stark, Andreas A1 - Rackel, Marcus W. A1 - Pyczak, Florian A1 - Hehl, Axel von T1 - In situ analysis of the forging process of a novel γ-TiAl alloy using synchrotron radiation T2 - Materialwissenschaft und Werkstofftechnik Y1 - 2016 U6 - https://doi.org/10.1002/mawe.201600635 SN - 1521-4052 VL - 47 IS - 11 SP - 1109 EP - 1120 ER - TY - GEN A1 - Lazurenko, Daria V. A1 - Laptev, Ilia S. A1 - Golkovsky, Mikhail G. A1 - Stark, Andreas A1 - Paul, Jonathan A1 - Bataev, Ivan A. A1 - Ruktuev, Alexey A. A1 - Song, Lin A1 - Gollwitzer, Christian A1 - Pyczak, Florian T1 - Influence of the Ti/Al/Nb ratio on the structure and properties on intermetallic layers obtained on titanium by non-vacuum electron beam cladding T2 - Materials Characterization Y1 - 2020 SN - 1044-5803 VL - 163 ER - TY - GEN A1 - Li, Yuzhi A1 - Pyczak, Florian A1 - Stark, Andreas A1 - Wang, Li A1 - Oehring, Michael A1 - Paul, Jonathan A1 - Lorenz, Uwe T1 - Temperature dependence of misfit in different Co–Al–W ternary alloys measured by synchrotron X-ray diffraction T2 - Journal of Alloys and Compounds Y1 - 2020 SN - 0925-8388 VL - 819 ER - TY - GEN A1 - Song, Lin A1 - Appel, Fritz A1 - Wang, Li A1 - Oehring, Michael A1 - Hu, Xingguo A1 - Stark, Andreas A1 - He, Junyang A1 - Lorenz, Uwe A1 - Zhang, Tiebang A1 - Lin, Junpin A1 - Pyczak, Florian T1 - New insights into high-temperature deformation and phase transformation mechanisms of lamellar structures in high Nb-containing TiAl alloys T2 - Acta Materialia Y1 - 2020 U6 - https://doi.org/10.1016/j.actamat.2020.01.021 SN - 1873-2453 SN - 1359-6454 VL - 186 SP - 575 EP - 586 ER - TY - GEN A1 - Lazurenko, Daria V. A1 - Petrov, Ivan Yu A1 - Mali, Vyacheslav I. A1 - Esikov, Maksim A. A1 - Kuzmin, R. I. A1 - Lozanov, V. V. A1 - Pyczak, Florian A1 - Stark, Andreas A1 - Dovzhenko, G. D. A1 - Bataev, Ivan A. A1 - Terentiev, D. S. A1 - Ruktuev, Alexey A. T1 - Ti-Al3Ti metal-intermetallic laminate (MIL) composite with a cubic titanium trialuminide stabilized with silver: Selection of fabrication regimes, structure, and properties T2 - Journal of Alloys and Compounds N2 - Ti-Al3Ti metal-intermetallic laminate (MIL) composites are known as promising structural materials due to the unique combination of their specific properties. However, their application is still limited due to the extremely high brittleness of the Al3Ti phase. In this study, we attempt to address this issue by changing the D022 crystal structure of Al3Ti to the more ductile L12 structure by alloying it with silver. To select the best fabrication regimes of Ti-Ti(Al1−xAgx)3 composites, in situ synchrotron X-ray diffraction analysis was performed to reveal the chemical reactions occurring upon heating the Ti-Al-Ag sample. The analysis showed that the highest amount of Ti(Al1−xAgx)3 phase with the L12 structure appears at 930 °C. This temperature was chosen for subsequent spark plasma sintering experiments. Scanning electron microscopy, energy dispersive X-ray analysis, and X-ray diffraction analysis revealed that the sintered sample consisted mainly of Ti, Ti(Al1−xAgx)3, and a minor fraction of the Ag-Al compound distributed in the central parts of the intermetallic layers and at the grain boundaries. Modification of the titanium trialuminide crystal structure positively affected the properties of the composite, providing a 60% increase in fracture toughness. The Ag-Al phase also contributed to toughening, causing an additional crack deflection effect. Y1 - 2022 U6 - https://doi.org/10.1016/j.jallcom.2022.165480 SN - 1873-4669 VL - 916 ER - TY - GEN A1 - Liu, Xu A1 - Song, Lin A1 - Liu, Tong A1 - Stark, Andreas A1 - Pyczak, Florian A1 - He, Zhanbing A1 - Lin, Junpin A1 - Zhang, Tiebang T1 - In- and ex-situ study of the deformation behavior of the βo(ωo) phase in a Ti4Al3Nb alloy during high-temperature compression T2 - Journal of Alloys and Compounds N2 - In-situ synchrotron-based high energy X-ray diffraction (HEXRD) and ex-situ Gleeble tests were conducted to investigate the deformation behavior of the βo(ωo) phase in a Ti4Al3Nb alloy. In samples compressed at 600 and 800 °C, the brittle ωo phase deforms mostly elastically, resulting in the failure of the Ti4Al3Nb alloy by premature fracture. In a sample deformed at 900 °C, the ωo phase mostly transforms into the βo phase under uniaxial loading. Moreover, the ductility of a Ti4Al3Nb alloy is largely enhanced at this temperature. In a sample deformed at 1000 °C, dynamic recrystallization (DRX) of the βo phase extensively takes place. Direction 1 (D1) and Direction 2 (D2) deviating from the loading direction with an angle of 65° ± 5° and 15° ± 5° are selected to analyze the lattice strain evolution of (110)βo lattice planes. At the late stage of macro strain hardening, deformed[removed]βo//D1 oriented grains bear a higher load due to the occurrence of DRX in[removed]βo//D2 oriented grains. Subsequently, DRX continues in[removed]βo//D1 oriented βo grains. The coordinated deformation of βo grains ensures the good deformability of a Ti4Al3Nb alloy at 1000 °C. Y1 - 2022 U6 - https://doi.org/10.1016/j.jallcom.2022.165626 SN - 0925-8388 VL - 918 ER - TY - GEN A1 - Liu, Xu A1 - Song, Lin A1 - Stark, Andreas A1 - Lorenz, Uwe A1 - He, Zhanbing A1 - Lin, Junpin A1 - Pyczak, Florian A1 - Zhang, Tiebang T1 - Deformation and phase transformation behaviors of a high Nb-containing TiAl alloy compressed at intermediate temperatures T2 - Journal of Materials Science and Technology N2 - In modern β-solidified TiAl alloys, the decomposition of α2 phase is frequently observed during heat treatment or high-temperature deformation of the alloys. In this study, high-temperature deformation and decomposition mechanisms of α2 phase in a Ti-45Al-8.5Nb-0.2B-0.2W-0.02Y alloy are investigated. In a sample deformed at 800 °C, the precipitation of βo(ωo) phase is observed within the equiaxed α2 phase. The nucleation of ωo particles within the βo matrix indicates the α2→βo→ωo transformation. In addition, numerous γ phase precipitates form within the βo(ω) areas. The α2 lamellae decompose into ultrafine (α2+γ) lamellae and coarsened γ lamellae via α2→α2+γ and α2→γ transformation, respectively. Moreover, the ωo phase nucleates within the ultrafine lamellae via α2→ωo transformation. However, in a sample deformed at 1000 °C, the nucleation of βo particles is sluggish, which is caused by the efficient release of the internal stress via dynamic recrystallization (DRX). These results indicate that complex phase transformations can be introduced by the decomposition of α2 phase in TiAl alloys with a high amount of β-stabilizing elements. Y1 - 2022 U6 - https://doi.org/10.1016/j.jmst.2021.06.041 SN - 0861-9786 VL - 102 SP - 89 EP - 96 ER - TY - GEN A1 - Gabrisch, Heike A1 - Stark, Andreas A1 - Schimansky, Frank-Peter A1 - Wang, Li A1 - Schell, Norbert A1 - Pyczak, Florian T1 - Carbides in Ti-45Al-5Nb alloys with different carbon contents T2 - Intermetallics Y1 - 2013 SN - 0966-9795 IS - 33 SP - 44 EP - 53 ER - TY - GEN A1 - Ivanov, Ivan V. A1 - Lazurenko, Daria V. A1 - Stark, Andreas A1 - Pyczak, Florian A1 - Thömmes, Alexander A1 - Bataev, Ivan A. T1 - Application of Different Diffraction Peak Profile Analysis Methods to Study the Structure Evolution of Cold-Rolled Hexagonal α-Titanium T2 - Metals and Materials International Y1 - 2020 U6 - https://doi.org/10.1007/s12540-019-00309-z SN - 2005-4149 SN - 1598-9623 VL - 26 IS - 1 SP - 83 EP - 93 ER - TY - GEN A1 - Wang, Li A1 - Song, Lin A1 - Stark, Andreas A1 - Liu, Yong A1 - Oehring, Michael A1 - Lorenz, Uwe A1 - Pyczak, Florian T1 - Identification of Laves phases in a Zr or Hf containing γ-γ′ Co-base superalloy T2 - Journal of Alloys and Compounds Y1 - 2019 SN - 0925-8388 VL - 805 SP - 880 EP - 886 ER - TY - GEN A1 - Lazurenko, Daria V. A1 - Stark, Andreas A1 - Esikov, Maksim A. A1 - Paul, Jonathan A1 - Bataev, Ivan A. A1 - Kashimbetova, Adelya A. A1 - Mali, Vyacheslav I. A1 - Lorenz, Uwe A1 - Pyczak, Florian T1 - Ceramic-Reinforced γ-TiAl-Based Composites: Synthesis, Structure, and Properties T2 - Materials Y1 - 2019 U6 - https://doi.org/10.3390/ma12040629 SN - 1996-1944 VL - 12 IS - 4 ER - TY - GEN A1 - Hauschildt, Katja A1 - Stark, Andreas A1 - Schell, Norbert A1 - Müller, Martin A1 - Pyczak, Florian T1 - The transient liquid phase bonding process of a γ-TiAl alloy with brazing solders containing Fe or Ni T2 - Intermetallics Y1 - 2019 SN - 0966-9795 VL - 106 SP - 48 EP - 58 ER - TY - GEN A1 - Wang, Li A1 - Oehring, Michael A1 - Li, Yuzhi A1 - Song, Lin A1 - Liu, Yon A1 - Stark, Andreas A1 - Lorenz, Uwe A1 - Pyczak, Florian T1 - Microstructure, phase stability and element partitioning of γ/γʹ Co-9Al-9W-2X alloys in different annealing conditions T2 - Journal of Alloys and Compounds Y1 - 2019 SN - 0925-8388 VL - 787 SP - 594 EP - 605 ER - TY - GEN A1 - Song, Lin A1 - Hu, Xingguo A1 - Wang, Li A1 - Stark, Andreas A1 - Lazurenko, Daria V. A1 - Lorenz, Uwe A1 - Lin, Junpin A1 - Pyczak, Florian A1 - Zhang, Tiebang T1 - Microstructure evolution and enhanced creep property of a high Nb containing TiAl alloy with carbon addition T2 - Journal of Alloys and Compounds Y1 - 2019 U6 - https://doi.org/10.1016/j.jallcom.2019.151649 SN - 0925-8388 VL - 807 ER - TY - GEN A1 - Lazurenko, Daria V. A1 - Bataev, Ivan A. A1 - Mali, Vyacheslav I. A1 - Jorge, J. R. A1 - Stark, Andreas A1 - Pyczak, Florian A1 - Ogneva, T. S. A1 - Maliutina, I. N. T1 - Synthesis of metal-intermetallic laminate (MIL) composites with modified Al3Ti structure and in situ synchrotron X-ray diffraction analysis of sintering process T2 - Materials and Design Y1 - 2018 U6 - https://doi.org/10.1016/j.matdes.2018.04.038 SN - 0264-1275 VL - 151 SP - 8 EP - 16 ER - TY - GEN A1 - Wang, Li A1 - Oehring, Michael A1 - Lorenz, Uwe A1 - Stark, Andreas A1 - Pyczak, Florian T1 - New insights into perovskite-Ti3AlC precipitate splitting in a Ti-45Al-5Nb-0.75C alloy by transmission electron microscopy T2 - Intermetallics Y1 - 2018 U6 - https://doi.org/10.1016/j.intermet.2018.06.006 SN - 0966-9795 VL - 100 SP - 70 EP - 76 ER - TY - GEN A1 - Freund, Lisa P. A1 - Stark, Andreas A1 - Pyczak, Florian A1 - Schell, Norbert A1 - Göken, Mathias A1 - Neumeier, Steffen T1 - The grain boundary pinning effect of the µ phase in an advanced polycrystalline γ/γʹ Co-base superalloy T2 - Journal of Alloys and Compounds Y1 - 2018 U6 - https://doi.org/10.1016/j.jallcom.2018.04.204 SN - 0925-8388 VL - 753 SP - 333 EP - 342 ER - TY - GEN A1 - Gussone, Joachim A1 - Rackel, Marcus W. A1 - Tumminello, Silvana A1 - Barriobero-Vila, Pere A1 - Kreps, Frederic A1 - Kelm, Klemens A1 - Stark, Andreas A1 - Schell, Norbert A1 - Pyczak, Florian A1 - Haubrich, Jan A1 - Requena, Guillermo T1 - Microstructure formation during laser powder bed fusion of Ti-22Al-25Nb with low and high pre-heating temperatures T2 - Materials and Design Y1 - 2023 U6 - https://doi.org/10.1016/j.matdes.2023.112154 SN - 0264-1275 VL - Vol. 232 ER - TY - GEN A1 - Liu, Xu A1 - Stark, Andreas A1 - Pyczak, Florian A1 - Zhang, Tiebang T1 - In-situ synchrotron high energy X-ray diffraction study on the internal strain evolution of D019-α2 phase during high-temperature compression and subsequent annealing in a TiAl alloy T2 - Journal of Materials Science and Technology Y1 - 2023 U6 - https://doi.org/10.1016/j.jmst.2023.04.027 SN - 1941-1162 SN - 1005-0302 VL - Vol. 163 SP - 212 EP - 222 ER - TY - GEN A1 - Gabrisch, Heike A1 - Janovská, Michaela A1 - Rackel, Marcus W. A1 - Pyczak, Florian A1 - Stark, Andreas T1 - Impact of microstructure on elastic properties in the alloy Ti-42Al-8.5 Nb T2 - Journal of Alloys and Compounds Y1 - 2023 U6 - https://doi.org/10.1016/j.jallcom.2022.167578 SN - 1873-4669 SN - 0925-8388 VL - Vol. 932 ER - TY - CHAP A1 - Gabrisch, Heike A1 - Lorenz, Uwe A1 - Oehring, Michael A1 - Paul, Jonathan A1 - Pyczak, Florian A1 - Rackel, Marcus W. A1 - Schimansky, Frank-Peter A1 - Stark, Andreas T1 - TiAlNb-alloy with a modulated B19 containing constituent produced by powder metallurgy 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.2012.1575 SP - 35 EP - 40 PB - Cambridge Univ. Press CY - Cambridge ER - TY - GEN A1 - Fröbel, Ulrich A1 - Stark, Andreas A1 - Paul, Jonathan A1 - Pyczak, Florian T1 - Assessment of the capability of Zr, Y, La, Gd, Dy, C, and Si to enhance the creep strength of gamma titanium aluminide alloys based on their effect on flow stress and thermal activation parameters T2 - Intermetallics Y1 - 2023 U6 - https://doi.org/10.1016/j.intermet.2023.108018 SN - 1879-0216 SN - 0966-9795 VL - Vol. 162 ER - TY - GEN A1 - Guo, Xiang A1 - Song, Lin A1 - Liu, Xu A1 - Stark, Andreas A1 - Pyczak, Florian A1 - Zhang, Tiebang T1 - In-situ synchrotron HEXRD study on the phase transformation mechanisms of the ω-related phases in a Ti4Al3Nb alloy T2 - Materials Characterization Y1 - 2023 U6 - https://doi.org/10.1016/j.matchar.2023.112901 SN - 1873-4189 SN - 1044-5803 VL - Vol. 200 ER - TY - GEN A1 - Gabrisch, Heike A1 - Lorenz, Uwe A1 - Pyczak, Florian A1 - Rackel, Marcus W. A1 - Stark, Andreas T1 - Morphology and stability of orthorhombic and hexagonal phases in a lamellar γ-Ti-42Al-8.5Nb alloy-A transmission electron microscopy study T2 - Acta Materialia Y1 - 2017 SN - 1359-6454 VL - 135 SP - 304 EP - 313 ER -