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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Phase Transformations and Microstructural Evolution
Presentation Title Fabrication of Gamma Prime Strengthened Ni-Cr-Al-Ti Microtubes via Gas-phase Deposition and the Kirkendall Effect
Author(s) Haozhi Zhang, Ashley Paz y Puente
On-Site Speaker (Planned) Haozhi Zhang
Abstract Scope Metallic Ni-based superalloy lattice structures have garnered significant interest recently since they provide low density, high surface area and improved heating/cooling efficiency compared to their traditional bulk counterparts. Here Ni-Cr-Al-Ti wires, which fundamentally represent the struts of a lattice structure, have been fabricated using a gas-phase deposition technique called pack cementation. By taking advantage of the short diffusion distances and radial symmetry in lattice structures, this method can also be used to harness the Kirkendall effect to create hollow struts leading to a secondary level of porosity. In this talk, the influence of various alloying additions on the Kirkendall pore formation and evolution will be discussed. The final composition of the hollowed wires can be further optimized by de-alloying via reversing the pack cementation process to get the target composition and the desired gamma prime strengthened microstructure.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Martensitic Transformation Kinetics Law Sensitive to Stress State Implemented in Crystal Plasticity for Modeling of Strain and Stress Driven Austenite to Martensite Transformation
Analysis by Dilatometry and Nanoindentation in an Experimental Medium-carbon Steel during the Martensite Isothermal Tempering
Atomic Structures and Processes in Al-Cu alloys
Atomistic modeling based on the Quasiparticle Approach of the Fcc-bcc Phase Transformations
Barrier-free Nucleation at Grain-boundary Triple Junctions during Solid-state Phase Transformations
Beyond Modified Mean Field: A Case for a Stochastic Grain Growth Model in the Short Time Limit
Comparison of Phase Transformations in Binary Ti-Mo and Zr-Nb Alloys
Concurrent Modeling of Martensitic Transformation and Crack Growth in Shape Memory Ceramics
Controlling Microstructure of Nanotwinned Cu by Tuning the Electroplating Temperatures and Chemical Additives
Coupled Grain Structure and Carbide Evolution during Rapid Thermal Cycling of an Fe-Cr-C Steel
Crystallographic Characteristics of γ'-Fe4N Formation Upon Nitriding of α-Fe
Defect Assisted Growth of Fine Scale Alpha in Titanium Alloys
Dislocation or Twinning Formation in Inorganic Semiconductors from Light Irradiation
Divergent Pearlite Growth in Fe-Mn-C Steel
Effect of Heat Treatments on Microstructures and Mechanical Properties of Ti-5553 Alloy
Effect of Precipitates on Martensitic Transformation in NiTiHf Shape Memory Alloys
Effect of Zirconium Addition to Wrought Al-Mg-Si Alloys on Microstructure
Exploring Phase Transformations in the Au-Zn-Al System
Fabrication of Gamma Prime Strengthened Ni-Cr-Al-Ti Microtubes via Gas-phase Deposition and the Kirkendall Effect
Formation and Stability of Ni-Y Clusters in Mg85Y9Ni6 Alloys
Formation of Retained Delta-ferrite and Martensite in the Coarse Grained Heat-affected Zone of P91 Heat-resistant Steel
In-situ X-ray Diffraction Measurement during Deformation of Austenite above the Ae3 Temperature
Interaction between Phase Transformations and Dislocation Evolution: Phase Field Approaches
Interphase Boundary Anisotropy Effects on the Microstructure Evolution in Three Phase β(In) – In2Bi – γ(Sn) Eutectic System
Iron-rich Microstructures in Post-Detonation Nuclear Debris
Lattice Boltzmann Phase-field Modelling of Solidification Process for the Ni-Nb Binary-alloy
Linear Complexion Formation and their Effect on the Strength of Metallic Alloys
Macroscopic Energy Barrier and Rate-independent Hysteresis in Martensitic Transformations
Martensitic Transformation in a Rapidly-quenched Interstitial-free Steel using a Gleeble 3800 Thermo-mechanical Simulator
Mesoscale Models for Investigating Solid-state Phase Transformations in Metal Hydrides for Hydrogen Storage
Microstructural and Mechanical Characterization of Cast Austenitic Stainless Steel Alloyed with Si
Molecular Dynamic Study the Role of the Kinetic Factor during Nucleation of Stoichiometric Compounds from Liquid
Morphological and Structural Instability of Iron-rich Precipitates in Cu-Fe-Co Alloys
Morphological Evolution Mechanisms in Phase-separating Polycrystalline Alloy Films Exposed to a Vapor Phase
Multiphase Modeling of Artificial Aging in a Multicomponent Aluminum Alloy based on the Subcritical Growth Theory
Neutron Diffraction-based Assessment of Eutectoid Phase Transformation Kinetics in U-10Mo Alloys with Minor Ternary Alloying Additions of Cr, Co, and Ni
Nitride Precipitation Induced by Nitrogen-solute Clustering in Ferrous Alloys
Novel Alloy Design Strategies for High Strength Car Body Parts Manufactured by Superplastic Forming
O-33 (Invited): HyMARC Multiscale Modeling Approaches for Investigating Thermodynamic and Kinetic Phase Behaviors of Metal Hydrides
O-35: Bainite Formation during Zinc Galvanizing on Steel
O-36: Carbon and Microstructure Effects on the Magnetic Properties of Fe-CN Soft Magnetic Materials (Minnealloy)
O-37: Carbonation Behavior of Calcium Aluminate Cements with Additions of Silica
O-38: Dealloyed High-strength Metallic Coatings
O-39: Dilatometric Analysis of the Martensite Decomposition by Stages during Continuous Heating
O-40: Enhanced Chalcopyrite Bioleaching by Combined Catalysis of Activated Carbon and Visible Light
O-42: Hierarchical Microstructure Enhanced Comprehensive Mechanical Properties in Ti-Alloys
O-43: High-pressure Synthesis of HCP Nickel from a Metallic Glass
O-45: JMA Model Application to Elucidate the Kinetic Parameters in a Silicon Steel during Continuous Heating
O-46: Microstructural Evolution during Solidification of Ternary Eutectic Al-Cu-Mg
O-48: The Interaction of Point Defects with Stress Fields Generated by Persistent Slip Bands in f.c.c. Nickel
Oscillated Cooling Method as an Alternative Crystal Growth Route to Control the Microstructure during Peritectic Solidification
Pearlite in Multicomponent Steels: Phenomenological Steady-state Modeling
Phase-Field Simulation of Grain Growth in Porous Materials
Phase-field Simulation of Microstructure Evolution during Solidification in Metal Additive Manufacturing
Precipitation Kinetics and Evaluation of the Interfacial Mobility of Precipitates in an AlSi7Cu0.5Mg0.3 Cast Alloy
Predictably Tuning Transformation Temperatures in Thin Epitaxial Films
Rapid Solidification of Austenitic Stainless Steels by Splat Quenching
Structural Phase Transformation in Single Crystal Titanium during Dynamic Loading
The Effect of Interface Compatibility and Grain Constraint in ZrO2-based Shape-memory Ceramics
The Effects of Quenching Medium and Cooling Rates on the Phase Transformation of γ’-Fe4N to Achieve Iron Nitride Martensite
The Impact of the Cooling Rate on Controlling the Grain Boundary Morphology and the Mechanical Properties of Nickel-based Superalloys
The Validity of Additivity Rule for Pearlite Transformation in Eutectoid Steels
Thermodynamic and Kinetic Study of the fcc-B2 Phase Transformation and Consecutive Microstructural Evolution in the Ag-Cu-Pd System
Young Leaders International Scholar – JIM: Co-based Heusler Alloys with Reentrant Martensitic Transformation Behavior: Fundamentals and Application Possibilities
(Al,Zn)3Zr Dispersoid-assisted η′ Precipitation in a Model Al-Zn-Mg-Cu-Zr Alloy
(S)TEM Investigation of a Passivating Alumina Layer Formed During Air Annealing of CVD-Grown Hf(1-x)AlxB2 Coatings

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