Dynamic Recrystallization Behavior of a Fe-Cr-Ni Super-Austenitic Stainless Steel

作者：Asli A Hoseini^*; Zarci Hanzaki A

来源：Journal of Materials Science & Technology, 2009, 25(5): 603-606.

• Sanicro 28
• Dynamic recrystallization
• Super-austenitic
• Necklace structure

The super-austenitic stainless steels are extensively utilized in the seamless tubes production for oil extraction industries. Due to the importance of thermo-mechanical processing in the production of these tubes, the dynamic recrystallization (DRX) characteristics of a Cr-Ni super austenitic stainless steel (1 4563) were investigated in the present study. This was performed using the hot compression testing method in the temperature range of 950-1150 degrees C and the strain rate of 10(-3)-10(-1) s(-1). The initiation and evolution of DRX were examined through microstructural analysis The results indicated that the recrystallized grain formed a necklace type structure at the prior austenite grain boundaries at higher strain rates In addition, DRX nucleation occurs by bulging and successive strain induced boundary migration (SIBM)

• 出版日期2009-9