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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
Sponsorship TMS Materials Processing and Manufacturing Division
TMS: Phase Transformations Committee
Organizer(s) Rajarshi Banerjee, University of North Texas
Eric A. Lass, University of Tennessee-Knoxville
Bharat Gwalani, Pacific Northwest National Laboratory
Jonah Klemm-Toole, Colorado School of Mines
Jessica A. Krogstad, University of Illinois at Urbana-Champaign
Ashley E. Paz Y Puente, University of Cincinnati
Keith E. Knipling, Naval Research Laboratory
Matthew A. Steiner, University of Cincinnati
Scope The microstructural templates based on a homogeneous distribution of ordered precipitates (for example L12, DO22, or B2) within a solid solution face-centered cubic (FCC) or body-centered cubic (BCC) matrix, are two of the most prevalent templates used in designing multiple alloy systems. Such systems include nickel-base and cobalt-base superalloys, austenitic and ferritic steels, aluminum-base alloys, and more recently high entropy alloys, or complex concentrated alloys. The ordered precipitates in these alloys can be potent strengtheners, both at ambient and at elevated temperatures. This symposium brings together the various communities working on isostructural ordered/disordered precipitate/matrix alloy systems. Areas of interest include: the mechanism of precipitation of the ordered phase within the FCC or BCC solid solution matrix, distribution of the alloying elements between matrix and precipitate, other related phase transformations, and the influence of these on the overall microstructural evolution and mechanical properties of these alloys. Both experimental and computational work on these topics are welcome.
Abstracts Due 07/19/2021
Proceedings Plan Planned:
PRESENTATIONS APPROVED FOR THIS SYMPOSIUM INCLUDE

A unified view on the morphology and crystal structure of carbides in iron-carbon alloys.
Anomalous hardening behavior in dispersoid-modified AlMgZn alloys
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
In Search of New Alloys: The L12 Ordered Precipitates in fcc Matrix
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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