Transmission electron microscopic investigations were made of specimens which had been annealed in air or vacuum at 600C, and strained to a total elongation of 0.5% at room temperature. A macroscopically non-uniform spatial distribution of dislocations was observed. The dislocation density appeared to be higher near to the surface of deformed samples, and this was attributed to a higher work hardening rate near to the scale/matrix interface. The dislocation density was also non-uniform along a plane that was parallel to the interface. The variations in the dislocation density seemed to be random in this case.

TEM Studies of Dislocation Sub-Structure in 316 Austenitic Stainless Steel Strained after Annealing in Various Environments W.Zieliński, A.A.Abduluyahed, K.J.Kurzydłowski: Materials Science and Engineering A, 1998, 249, 91-6