dynamic strain aging Activation energy 1 Co-Ni-based superalloy 1 Co-ni-based superalloy 1 Cobalt alloys 1 Dynamic strain aging 1 Elevated temperature 1 FeC alloy 1 Lows-temperatures 1 Ni-based superalloys 1 Nickel alloys 1 Portevin-Le Chatelier effects 1 Portevin-Le Châtelier (PLC) effect 1 Powder metallurgy 1 Strain rate 1 Strain-rate sensitivity 1 Strain-rates 1 Substitutional atoms 1 Superalloys 1 Temperature 1 Tensile testing 1 diffusion 1 dislocations 1 strain rate sensitivity 1