How Do You Refine Austenitic Stainless Steel Grains?
Artificial Neural Network Model for Grain Refining in Stainless Steels INTRODUCTION Austenitic stainless steels, despite their excellent corrosion resistance, have low yield strength. One of the most effective ways to increase yield strength without impairing good ductility is by grain refinement. Austenitic stainless steels do not exhibit any transformation during hot deformation, so grain refinement can be achieved only by recrystallization. Using these processes, grain refinement is limited to about 10 microns [1,2]. Therefore, austenitic stainless steels are commonly subjected to cold deformation in order to increase their strength. However, austenitic stainless steels become magnetic after the sufficient cold deformation due to the formation of strain-induced martensite. These steels are renowned for their non-magnetic properties which is the first tangible characteristics when these steels are compared with ferritic and martensitic stainless steels. Therefore, these steels cannot
