About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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Characterization of Minerals, Metals and Materials
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Presentation Title |
Microstructural Evolution of γ'-Ni3Al Precipitates Affecting Mechanical Properties of Nickel-based Superalloys |
Author(s) |
Rasim Eris, M. Vedat Akdeniz, Amdulla O. Mekhrabov |
On-Site Speaker (Planned) |
Rasim Eris |
Abstract Scope |
Nickel-based superalloys are exceptional materials due to their novel two phase (γ-γ') microstructures. In this study, the effects of ternary alloying X element additions and heat treatment procedures on the microstructural evolution of γ'-Ni3Al precipitates and mechanical properties of Ni80Al15X5 alloy systems (i.e. X = Cr, Co, Nb or Ti) will be presented. Furthermore, the results of the experimental studies will be supported by modelling and theoretical first-principles calculations via charge density difference (CDD), electron localization function (ELF) and density of states (DOS) simulations which demonstrate site preferences and bonding characteristics of alloying X element atoms with their next neighbour atoms. |
Proceedings Inclusion? |
Planned: |