Evolution of microstructure and crystallographic texture in severely cold rolled high entropy equiatomic CoCrFeMnNi alloy during annealing

An equiatomic FCC CoCrFeMnNi high entropy\ud alloy (HEA) was heavily cold rolled \ud up to 9\ud 0\ud % reduction \ud in \ud thickness followed by isochronal annealing for 1 hour at temperatures \ud ranging between \ud 70\ud 0ºC to 1\ud 1\ud 00ºC. A strong brass texture was observed in the cold\ud -\ud roll\ud ed \ud condition indicating the low stacking fault energy of the material. A fine stable microstructure \ud was observed during annealing at low temperatures. The recrystallization texture was \ud characterized by the presence of deformation texture components, in pa\ud rticula\ud r, the α\ud -fiber \ud (ND//<110>), S ({123} <634>) and \ud the typical brass recrystallization texture component ({236} \ud <385>). Annealing twins were shown to have important effect on the formation of annealing \ud texture