Dynamic Recrystallization of Stainless Steel 316L: A Comparison of Experimental Results to Computer Simulation
Deformations introduced into low to medium stacking fault energy materials at or above the recrystallization temperature causes simultaneous formation and annihilation of defects. Annihilation of defects by nucleating strain free grains is called dynamic recrystallization (DRX). Stainless steel 316L was tested in tension, and DRX was found to occur at 900 C with a strain rate of 0.01s^-1. The change in microstructure from 5%-20% total strain was analyzed using electron backscatter diffraction. The misorientation between grains where strain free nucleations occured was calculated and used to determine if the boundary character was general or special (a CSL boundary). Good agreement was found between experimental results and results from Monte Carlo simulations; nucleations occurred more extensively on general boundaries than on special boundaries in both cases.
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