The surface nanocrystallization technology of stainless steel such as surface mechanical attrition treatment

  shot peering

cross shear rolling and laser surface melting and the bulk nanostructured technology such as mechanical alloy  method

inert  gas  condensation  in-situ  compression

electrochemical  deposition

crystallized  from  amorphous  solid  and  se- vere plastic deformation method is presented. The corrosion resistance of nanocrystallined stainless steel is affected directly by  nanocrystalline  structure  and  the  features  including  uniform  structure

free-dislocation  and  intemal  stress  are  precondi-  tions to get excellent corrosion resistance.