|About this Abstract
||2019 TMS Annual Meeting & Exhibition
||Gamma (FCC)/Gamma-Prime (L12) Co-Based Superalloys III
||Wrought Co-base Superalloys – Mechanical Properties and Deformation Mechanisms
||Steffen Neumeier, Mathias Göken
|On-Site Speaker (Planned)
Multinary γ'-precipitation strengthened Co-base superalloys have been developed that have a large processing window and excellent mechanical properties at high temperatures. Their creep strength is higher than that of commercially available Ni-base wrought alloy Udimet720Li. In this work, the mechanical properties as well as the underlying strengthening and deformation mechanisms of different polycrystalline Co-base superalloys are presented and discussed. The investigation of the deformed microstructure in the transmission electron microscope revealed that the formation of superlattice stacking faults and microtwinning are the prevailing deformation mechanism and that segregation of elements within the γ' phase plays a key role.
||Planned: Supplemental Proceedings volume