|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Deformation and Damage Mechanisms in High Temperature Ni, Co and Fe-based Superalloys
||The Effect of Forging Parameters on Large Unrecrystallized Powder Features in RR1000 Nickel Base Superalloy
||Soran Birosca, Mark Hardy
|On-Site Speaker (Planned)
During initial processing of RR1000 nickel based superalloy, large unrecrystallized features can develop within the microstructure. Here, these large features were characterised to understand their behaviour during forging and after super-solvus heat treatment. In the current study, cylindrical specimens were forged at various temperatures and strain rates. EBSD was used in order to track the development of induvial features prior and after a super-solvus heat treatments. The results showed that with increasing peak flow stress the size of the features decreased during forging and promoted further dynamic recovery. The samples that forged at lower peak flow stresses developed more sub grain boundaries and recrystallised more readily upon super-solvus heat treatment.
||Planned: Supplemental Proceedings volume