|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Deformation and Damage Mechanisms in High Temperature Ni, Co and Fe-based Superalloys
||Influence of Thermomechanical Processing and Hot Deformation on Microstructural Evolution towards Building a Comprehensive Model for Dynamic Recrystallization Kinetics in Alloy IN625
||Benjamin Adam, Graham Tewksbury, William Wood, Brandon Templin, Jon Tirpak
|On-Site Speaker (Planned)
The solid-solution strengthened Ni-based alloy Inconel 625 is a widely used in the heavy manufacturing industry, aerospace and naval applications and offers the necessary mechanical performance, but its high-temperature strength can present unique challenges during hot forming. Presently, forging shops operate at higher temperatures to avoid die failure, which leads to excessive grain growth following dynamic recrystallization and dissolution of secondary phases. This necessitates an understanding of how different combinations of strain, strain rate and temperature influence the onset of flow stress behaviour of this alloy, mimicking actual industrial conditions. The physical simulation tool Gleeble 3500 was utilised to generate this data, while microstructural analysis through light optical and electron microscopy using EDX and EBSD techniques delivered grain size information, its evolution and statistics. Results obtained are input into computational recrystallization JMAK type models that allow for optimization of the forging process towards a tool for comprehensive integrated production control.
||Planned: Supplemental Proceedings volume