Recrystallisation Characteristics of Cold Rolled Austenitic Stainless Steel during Repeated Annealing

Abstract:

The aim of the present study was to understand recrystallisation behaviour of a cold rolled AISI 316L austenitic stainless steel when annealed repetitively for short durations. The results were compared with isothermal annealing process. The evolving microstructure was examined by electron microscope. Electron backscattered diffraction was performed in a FEI NANO SEM 430 Field Emission Gun scanning electron microscope using an EDAX/TSL high-speed Digiview camera for Kikuchi pattern acquisition. Also progress of recrystallisation was assessed by hardness measurements at different annealing conditions. The study revealed distinct differences in the progress of recrystallisation of repeated and isothermally annealed specimens. Also the formation of ultrafine grained microstructure by repeated annealing process was noted.

• Periodical: Materials Science Forum (Volume 753)
• Pages: 157-162
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.753.157
• Online since: March 2013
• Authors: B. Ravi Kumar, Sailaja Sharma
• Keywords: Austenitic Stainless Steel, Grain Refinement, Recrystallization, Thermo-Mechanical Processing

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