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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Microstructural Templates Consisting of Isostructural Ordered Precipitate / Disordered Matrix Combinations: Microstructural Evolution and Properties
Presentation Title The Microstructural Design and Thermomechanical Processing of Compositionally Complex Alloys
Author(s) Mark A. Wischhusen, Samuel Inman, Jie Qi, Joseph Poon, John Scully, Jishnu Bhattacharyya, Alireza Zargaran, Sean Agnew
On-Site Speaker (Planned) Mark A. Wischhusen
Abstract Scope High entropy and compositionally complex alloys provide a large amount of flexibility in terms of component elements, but the single-phase alloys that largely populate this space are often limited in the strengthening mechanisms they have access to. Beyond solid solution strengthening and grain refinement, multi-phase alloys can be further tailored to optimize engineering properties. Alloys which have an FCC matrix phase, especially, may be optimized for strength and corrosion resistance while retaining a reasonable amount of ductility. By combining inspiration from existing multiphase alloys with corrosion resistance sensibilities, microstructure-based strain hardening models, and thermomechanical processing informed by phase stability predictions from ThermoCalc, a novel steel or other lightweight alloy strengthened by an ordered second phase may be designed which has exceptional performance in marine environments.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Iron and Steel, Characterization

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bcc-Superalloys Microstructure Templates: Tungsten to Titanium to Iron
Comparison of γ' and B2 Precipitates and Their Influence on the Mechanical Behavior of FeNiCoAl-based High-entropy Alloys
Core/Triple Shell Precipitates in Al-Er-Sc-Zr-(V,Nb,Ta) Alloys
Deformable Intermetallic Nanorods Leads to an Excellent Strength-ductility Combination in a High Entropy Alloy
Design of Precipitation Strengthened Metastable High Entropy Alloys
Free Energy Landscape, Transformation Pathway and Alloy Parameters Leading to Various Isostructural Ordered Precipitate Microstructures
High Temperature Deformation Pathways in Ordered L12- and Immm-based Compounds
Investigation of Nucleation Mechanisms Associated with the Formation of Coprecipitates in Ni-based Superalloys
Microstructural Engineering in NiCoCr Medium Entropy Alloys
Novel Nickel-based Alloys for High Temperature Structural Applications
On the Detailed Morphological and Chemical Evolution of Phases during Laser Powder Bed Fusion and Common Post-processing Heat Treatments of IN718
Optimizing Composition and Microstructure in Compositionally Complex Alloys Possessing bcc and B2 Mixtures
Precipitate Strengthening and Stabilization Mechanisms in Cast and Additively Manufactured Al-Cu-Mn-Zr Alloys
Precipitation of Ordered B2 Precipitates in BCC Al2.7CrMnTiV High-entropy Alloys
Seeing the Shearing of Short-range Order with Dislocations in the High-entropy Alloy
The Microstructural Design and Thermomechanical Processing of Compositionally Complex Alloys
The Origin and Stability of Nanostructural Hierarchy in Nickel-base Superalloys
The Role of Precipitate Size Distribution and Morphology on Ni Superalloy Deformation Micromechanisms
Tuning the Degree of Chemical Ordering in the Solid Solution of a Complex Concentrated Alloy and Its Impact on Mechanical Properties
Understanding the Role of Chemistry on Planar Fault Energies in A3B Compositions

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