TY - JOUR A1 - Petrushin, N. A1 - Hvatzkiy, K. A1 - Gerasimov, V. A1 - Link, T. A1 - Epishin, A. A1 - Nolze, Gert A1 - Gerstein, G. T1 - A single-crystal co-base superalloy strengthened by gamma' precipitates: structure and mechanical properties N2 - An experimental Co-base superalloy was designed from the Ni-base system by exchange of Ni and Co concentrations. The alloy consist of a Co-matrix (γ phase) strengthened by cuboidal precipitates Co3(Al,X) (γ' phase). The γ'-solvus temperature is 1?005?°C. [001] single crystals of this alloy were solidified and tested for tension at different temperatures up to 1?000?°C. It was found that the Co-base alloy has a much lower yield stress than a corresponding Ni-base alloy, but a much higher ductility. The partitioning behaviour of the alloying elements in the Co-base alloy and the deformation mechanisms were investigated by scanning and transmission electron microscopy. KW - Microstructure KW - Precipitation KW - Stress PY - 2015 U6 - https://doi.org/10.1002/adem.201500088 SN - 1438-1656 VL - 17 IS - 6 SP - 755 EP - 760 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-34474 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -