ProgramMaster Logo
Conference Tools for 2017 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Solid State Precipitation
Presentation Title Analysis of Crystal Structures with Icosahedral Local Order in Al-Fe-V-Si Alloys After Solidification at Intermediate Cooling Rates
Author(s) Joseph Jankowski, Michael J. Kaufman, Amy Clarke, Stephen Midson, Krish Krishnamurthy
On-Site Speaker (Planned) Joseph Jankowski
Abstract Scope A two-phase powder of the h-AlFeVSi (P6/mmm a=2.522 nm c=1.256 nm) and α-AlFeVSi (Im-3 a=1.251 nm) icosahedral quasicrystalline approximants was prepared from a copper mold chill casting of RS8009 by dissolution of the aluminum matrix. The α-phase is a desirable strengthening phase in RS8009 while the h-phase is present as a coarse intermetallic. The crystal structure of the h-phase was solved from high resolution synchrotron powder diffraction using the charge flipping algorithm Superflip. Differences in local icosahedral order in the two phases will be presented. Additionally, the crystal structure solution from powder diffraction for the h-phase will be briefly compared to the previous model determined from TEM to highlight the advantages of high resolution powder diffraction.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Experimental and Modelling Study on Precipitation during Tempering of Martensitic Alloys
Analysis of Crystal Structures with Icosahedral Local Order in Al-Fe-V-Si Alloys After Solidification at Intermediate Cooling Rates
Atom Probe Characterization of Phase Separation during Age Hardening of a U-6wt.%Nb Alloy
Atomic Theory of Spinodal Decomposition
Carbide Precipitation during Heating in Martensitic Steels
Clustering and Precipitation in Al-Cu-Li Alloys: Influence of Minor Solute Additions on the Competition between Kinetic Paths
Effect of Ca Additions on the Ageing Behavior of Mg-15Gd-0.5Zr Alloy
Effect of Metalloid Addition on Anomalous Primary Crystallization of Al-RE Metallic Glasses
Effects of Clustering and Trace Elements on Precipitation Hardening of Al-Mg-Si Alloys
Formation of Complex Intermetallic Phases from Supersaturated Co Solid Solution in a Co-3.9Nb Alloy
Hydride Precipitates in Zirconium Alloys: Evolution of Dissolution and Precipitation Temperatures during Thermal Cycling Correlated to Microstructure Features
Investigating the Formation Path of Delta Hydrides in Zirconium Fuel Rod Claddings by Multi-Phase Field Modeling
Kinetics of Discontinues Precipitation upon Age-hardening of Deformed and Recrystallized Invar-Sn Alloys
L-183: Analysis of Beta´ Cu4Ti Precipitation in Cu-Ti Alloys by Conventional and Diffusion-couple Methods
L-184: Carbide Precipitation in a Low-alloy Ferritic Steel
L-185: Nanocomposites Ti/B/TiO2 by Mechanical Alloy Synthesis
Morphology and Phase Stability of Pt Nanostructures in Dense Transition Alumina Formed by Solid-state Precipitation
Precipitate Structures in Mg Alloys Containing Nd and Y
Precipitation Behavior in Ni-Ti-Zr Shape Memory Alloys
Predicting Orientation Relationships: A Simple Algorithm for Generating Near-coincidence Site Lattices in General Bravais Lattice Systems
Prediction of Size, Temperature and Composition-dependent Precipitate/Matrix Interfacial Energies
Self-organization by Strain Accommodation in the Formation of Long-range Stacking Order Structure in Mg-RE-TM Alloys
Spinodal Decomposition and Ordering Transformation in U6Nb Alloy
The Effects of ECAP on the Precipitation Behavior of Al 2024
The Role of Electron Microscopy in the Understanding of Precipitation in Light Alloys
Understanding the Precipitation and Orientation Relationships in Transition Metal Carbides and Nitrides

Questions about ProgramMaster? Contact programming@programmaster.org