K7 Seminar; Dr. Aleksander Kostka, Max- Planck-Institut für Eisenforschung GmbH, Düsseldorf, Nemčija; “σ-phase precipitation in an off-equiatomic Cr26Mn20Fe20Co20Ni14 compositionally complex alloy.”, Thursday, November 28, 2019, at 10.00 in Kolar’s lecture hall