Modelling of work hardening and stress saturation in FCC metals

摘要: Abstract A work hardening theory has been developed based on a microstructural concept comprising three elements; the cell/subgrain size, δ, dislocation density inside cells, ρi, and cell boundary or sub misorientation, ρb ϕ. The is statistical approach to storage of dislocations. This predicts that slip length, L, scales with inverse square root stored density, ρ−1/2, also, substructure evolution which consistent scaling (similitude) at zero degree Kelvin, stress τ