Creep behavior of a precipitation-strengthened A2-B2 refractory high entropy alloy

Yang, Liu; Pramanik, Aparajita; Sen, Sandipan; Dixit, Shubhashis; Muench, Marcel; Vikram, R. J.; Schliephake, Daniel; Eggeler, Yolita M.; Ankur, Chauhan; Heilmaier, Martin; Kauffmann, Alexander

doi:10.5281/zenodo.17896813

Creep behavior of a precipitation-strengthened A2-B2 refractory high entropy alloy

Yang, Liu; Pramanik, Aparajita; Sen, Sandipan; Dixit, Shubhashis; Muench, Marcel; Vikram, R. J.; Schliephake, Daniel; Eggeler, Yolita M.; Ankur, Chauhan; Heilmaier, Martin; Kauffmann, Alexander

Publisher: Zenodo
DOI: 10.5281/zenodo.17896813
Repository: zenodo.org
Language: en

Abstract

We gratefully acknowledge financial support by the Deutsche Forschungsgemeinschaft (DFG), grant no. HE 1872/34-2. This work was partly carried out with the support of the Karlsruhe Nano Micro Facility (KNMFi, grant no. 2025-034 032388), a Helmholtz Research Infrastructure at Karlsruhe Institute of Technology (KIT, grant no. 2025-034 032388). LY acknowledges financial support from the China Scholarship Council (CSC), grant no. 202207000023. RJV acknowledges the support by the Alexander von Humboldt Foundation. MM acknowledges financial support by the Landesgraduiertenförderung (LGF) by the local state of Baden-Württemberg (Germany). AP and AC acknowledge the Advanced Facility for Microscopy and Microanalysis (AFMM) and its staff at the IISc, Bengaluru, for providing access to the characterization facilities. AC gratefully acknowledges financial support from the Infosys Foundation, Bangalore.

Full text

1 Creep Mechanisms of a Two-Phase, A2-B2 Superalloy Supplementary Material Liu Yanga1, Aparajita Pramanikb1, Sandipan Sena*, Shubhashis Dixita, Marcel Muencha, R․ J․ Vikrama, Daniel Schliephakea, Yolita M. Eggelerc, Ankur Chauhanb***, Martin Heilmaiera and Alexander Kauffmannd** a Institute for Applied Materials (IAM-WK), Karlsruhe Institute of Technology (KIT), EngelbertArnold-Str. 4, 76131 Karlsruhe, Germany b Extreme Environments Materials Group (EEMG), Department of Materials Engineering, Indian Institute of Science (IISc), Bangalore, 560012, India c Laboratory for Electron Microscopy (LEM), Karlsruhe Institute of Technology (KIT), Engesserstr. 7 , 76131 Karlsruhe, Germany d Institute for Materials (IM), Ruhr University Bochum (RUB), Universitätsstr. 150, 44801 Bochum, Germany 1 equal contribution to the paper corresponding authors *mail: sandip[email protected]u (S. Sen) **mail: [email protected] (A. Kauffmann) ***mail: [email protected] (A. Chauhan) phone: +49 (0)234 32 18430 Figure S1. Inverse pole figure maps of (a) homogenized and furnace-cooled material, and samples crept at 1030 °C under an applied stress of (b) 100 MPa; (c) 125 MPa; and (d) 150 MPa. 2 Figure S2. (a) Grain boundary character map overlayed with IQ map of a smaller region of the sample crept at 100 MPa at 1030 °C and point to origin misoritentaion distribution across a representative; (b) high engle grain boundary (HAGB); (c) low angle grain boundary (LAGB); and (d) subgrain boundary formed during creep deformation (SGB).