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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Phase Transformation Across Multiscale Material Interfaces
Presentation Title Atomic-scale Characterization of Solute Segregation in Interfaces in Light Alloys
Author(s) Jian-Feng Nie
On-Site Speaker (Planned) Jian-Feng Nie
Abstract Scope Interfaces play a critical role in phase transformations and plastic deformation and ultimately in controlling mechanical properties of many structural materials. Defects in such interfaces, especially segregated solute atoms, are often small in scale and their detection and characterization are beyond the capability of conventional electron microscopy. Consequently, gaining fundamental insights into such defects has proved elusive. Advances in aberration-corrected scanning transmission electron microscopy (STEM), especially the techniques of high-angle annular dark-field imaging, energy-dispersive X-ray spectroscopy and electron energy-loss spectroscopy, provide an opportunity to reveal the distribution and identity of solutes at the atomic scale. This presentation will review recent progress on the characterization of segregated solute atoms in interfaces of selected light alloys (magnesium and aluminium alloys) that are of scientific and commercial significance. Implications of such observations on intelligent design for achieving unprecedented properties will be discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Analysis of the Stability of Interfaces Fabricated Using Solid State Welds
Atom Probe Tomography Study of Interface Diffusion Assisted Self-healing Behaviour of Cr2Al(Si)C MAX Phase Coatings
Atomic-scale Characterization of Solute Segregation in Interfaces in Light Alloys
Effect of Lattice-level Covalent Character on Phase and Interfacial Stability in Mg-alloys
Efficient and Systematic Study of Phase Transformations Using Dual-anneal Diffusion Multiples
Exploiting Non-conventional Pathways for Transformations and Microstructural Evolution in Metastable Beta Ti Alloys
Grain Boundary Microstates under Irradiation: Which Came First?
Interdiffusion and Kinetics Study of Ti-Al Intermetallic by Brazing
Microstructural Characterization of Linear Friction Welded Interfaces in Ti-based Alloys
Modeling of Complexion Transitions at One- and Two-dimensional Defects
Modeling Transitions at Interfaces
Morphological Evolution and Mechanical Behavior of Co-sputtered Cu-Mo Thin Films
Nanoscale Interfacial Phase Structures in Roll-bonded Metallic Glass Composite Materials
Prevention of Coarsening Induced Phase Transformations in Al-Cu Alloys: Role of Interfaces
Roles of Transformation Interface for Controlling Microstructure and Properties of High Strength Steels
Structure and Mechanical Response of Highly Defective Grain Boundaries
Structure and Properties of BCC Mg Synthesized Using Interface Strain Engineering
The Effect of Diffusion on the Microstructure and Properties of a NiAl-based Anchor Phase Coating for CMSX-4
Transient-liquid-phase-bonding and Mechanical Properties of Ni-based-superalloy-H230 for Heat Exchangers in Supercritical CO2 Power Cycles

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