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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium 2016 Technical Division Student Poster Competition
Presentation Title SPU-13 : Generalized Stacking Fault Energies of Multicomponent Alloys
Author(s) Jonas Kaufman, Josh Sanz, Greg Pomrehn, Aurora Pribram-Jones, Reza Mahjoub, Kevin Laws, Michael Ferry, Lori Bassman
On-Site Speaker (Planned) Jonas Kaufman
Abstract Scope Ductility is a desirable property for metallic alloys that is difficult to model directly. However stacking fault energy is an indicator of ductility in fcc alloys, as it dictates dislocation mobility. A generalized stacking fault energy (GSFE) curve contains not only stable stacking fault energies, but also energy barriers to stacking fault formation. These unstable energies, while experimentally inaccessible, are thought to be important in determining deformation behavior. This study examines a direct method for calculating GSFE in multicomponent alloys using special quasirandom structures along with density functional calculations. The method was validated against literature results for several pure elements and binaries. GSFE curves for quaternary high entropy brass/bronze and precious metal systems have been calculated and compared to experimentally observed ductility and twinning behavior. The results of the direct GSFE method were also compared to estimates of stable stacking fault energies using a more computationally efficient method.
Proceedings Inclusion? Definite: None Selected


SPG-10: Comparison on Electrochemical Migration Behavior of Fine-pitch Ag Interconnects Prepared by Screen Printing and Lithography Methods
SPG-11: High-Performance Anode Material Using Hierarchical Micro-Lamella-Structured 3D Porous Copper Current Collector for Advanced Lithium-Ion Batteries
SPG-12: Interfacial Reaction in Cu/Pb-free Solders during Solid-state Aging Process
SPG-13: Interfacial Reactions at the Joints of Bi2Te3-based Thermoelectric Devices
SPG-14: Liquidus Projection of the Bi-In-Te Thermoelectric Material System
SPG-15: Mechanical, Ferroelastic and Piezoelectric Behavior of Highly Textured PZT Films
SPG-16: Morphology and Microstructure of Ag Alloy Wire for Electronic Packaging under Electromigration
SPG-17: Oxide-coated Fe Powders for SMC Applications
SPG-18: Ultrathin Tantalum Based Power Capacitors with Low Leakage and High Operating Frequency
SPG-19: Why Does Electromigration Occur? – A Combinatorial Study Using Ab Initio Calculations and Synchrotron Radiation Diffractometry
SPG-1: Isothermal Reduction Behavior of CF(calcium ferrite) with Addition of Al2O3
SPG-20: Why Does Li-rich Layered Oxide Cathode Material Degrade in Lithium Ion Batteries?
SPG-21: A Study On Recrystallization and Grain Growth in Pure Magnesium
SPG-22: Application of Computational Thermodynamics & Kinetics to Rare Earth Reduction in Magnesium Alloys
SPG-23: Coupled Infrared Thermography and Digital Image Correlation for Advanced Characterization of Material Behavior during Hot Stamping
SPG-24: Dissimilar Metal Casting
SPG-25: Effect of Milling Time on Morphology and Properties of a New Mechanical Alloyed Fe-base ODS Alloy Powder
SPG-26: Effect of NbB2 Nanoparticles on the Portevin-Le Chatelier Phenomenon in Al-Mg Alloys
SPG-27: Influence of Processing on the Microstructure and Tensile Behavior of HPDC Mg AM Series Alloys
SPG-28: On the Microstructure and Properties of Supersaturated Al-Zn-Mg Alloy Fabricated by Friction Stir Processing
SPG-29: Thermodynamic & Kinetic Model Application to Strengthening Mechanisms of Aluminum Alloys for Additive Manufacturing
SPG-2: Low Energy Method to Separate Magnetite Generated By Reduction of Bauxite Residue
SPG-30: A Study of the Microstructural Evolution of Powder Aluminum Alloys after Thermal Processing
SPG-32: Dissolution Behavior of Ni Substrate and Ni3Sn4 Phase in Molten Lead-free Solders
SPG-33: Experimental Design Analysis of Stir Casting of Enhanced Aluminum Filler Reinforced with NbB2 Nanoparticles
SPG-35: Joining 1018 Steel to 304L Stainless Steel by Friction and Fusion Welding
SPG-36: Mechanical Characterization of Free Form Cold Spray Al 1100 Deposits
SPG-37: Nano-Strength Testing of Additive Manufactured Parts Using Atomic Force Microscopy
SPG-38: On the Atomistic Mechanism of Solid State Bonding Between Aluminum by Severe Thermal Plastic Deformation: A Molecular Dynamics Study
SPG-39: Phase Equilibria of the Sn-Fe-Ni Ternary System at 270oC
SPG-3: Non-isothermal Crystallization Behavior of CF with Addition of SiO2
SPG-40: Predicting the Stagnant Zone of Material Flow during Friction Stir Welding by Using a Novel Computational Fluid Dynamics Model
SPG-41: Printing of Graphene-coated Copper Nano-ink on Flexible Substrate Using Light Sintering Method
SPG-42: Choice of Intermetallic Compounds for Structural Applications in Near Submicron Joints
SPG-43: Cross Polarization for Enhanced Digital Image Correlation Fidelity
SPG-44: Cross Slip at a Screw Dislocation Pile-up: A Concurrent Atomistic-continuum Study
SPG-45: Differential Responses of Head and Neck Cancer Cell Lines Induced by N2/He Micro-plasma Exposure
SPG-46: Effect of Annealing Temperature on Tensile Properties and Hole Expansion Behavior of Fe-Mn-Al-C Dual Phase Light-weight Steel
SPG-47: Effect of Chemistry and Microstructure on the Toughness of C- Mo Steel
SPG-48: Effect of Friction Stir Processing on Microstructure and Mechanical Properties of Cast Eglin Steel (ES-1)
SPG-49: Effect Of Increasing Temperature On Cracking Behavior of Titanium Alloys During Hot Salt Stress Corrosion Cracking (HSSCC)
SPG-4: On the Effect of Mo on Austenite-ferrite Transformation Kinetics
SPG-50: Effects of Friction Stir Processing on Toughness of WE43 Thin Sheets
SPG-51: Friction Stir Welding of Thick Aluminum 7449 Alloys
SPG-52: Investigations on the Combustion Behavior of Ti-6Al-4V Alloy Exposed to Atmospheric Re-entry Environments
SPG-53: Nanomechanical Study of Mechanical Properties
SPG-54: New Developments in the Rolling Contact Fatigue of M50 Bearing Steel
SPG-55: Purification of Metallurgical-Grade Silicon Prepared from Rice Husk Ash Using Tin as Impurity Getter
SPG-56: Synchrotron Study on the Thermal Stability of Retained Austenite in High-carbon Chromium Steels
SPG-57: Strength Prediction in NiCo Alloys - The Role of Composition and Nanotwins
SPG-5: Solvent Extraction of Lanthanum (III) Using PC-88A Extractant Diluted in Kerosene
SPG-6: Synthesis of Nanocrystalline Tungsten Carbide (WC) via Carburization of WO42- on an Activated Carbon Matrix
SPG-7: Synthesis of Stable and Metastable Phases in the Ni-Si System by Mechanical Alloying
SPG-8: A Novel Effect of Ag3Sn: Effective Suppression of Thermomigration-induced Cu Dissolution in Micro-scale Pb-free Interconnects
SPG-9: An Eco-friendly Red Phosphor with Very High Intensity
SPU-10: Selective Dissolution of Al-Cu-Mg Alloys for Porous Metals Applications
SPU-11: Biomimetic Narce Composite Synthesis
SPU-12 : Effect of Heat Treatment and Chemical Composition on the High Temperature Hydrogen Attack (HTHA) Resistance of C-1/2 Mo Steels
SPU-13 : Generalized Stacking Fault Energies of Multicomponent Alloys
SPU-14 : High Strength Air-entrained Concrete with Partial Replacement of Fly Ash and Nanostructured Silica
SPU-15 : Micro-Tensile Testing on Proton Beam-Irradiated 304 SS
SPU-1: Characterization of Inclusions in High Strength Interstitial Free (IF) Steel
SPU-2: Separation and Recovery of Rare Earth Elements Using Ion Exchange
SPU-3: Synthesis of Aluminum Multiwalled Carbon Nanotubes by Mechanical Alloying and Sintering
SPU-4: Crosslinked Poly(Ethylene Glycol) Solid Polymer Electrolytes for Lithium-Metal Batteries
SPU-5: First Principles Study of Lattice Disordering in CuNiMnAl and CuNiMnSn Heusler Alloys
SPU-6: Nanofabrication and Characterization of Quasi-Crystal Metasurfaces Using Shadow-Sphere Lithography
SPU-7: Processing, Microstructure, and Oxidation Behavior of Iron Foam
SPU-8: Study of Thermomechanical Properties of an Al-Zn Matrix Reinforced with Dodecaboride Particles
SPU-9: Microstructural Evolution and Aging Behavior In a Ni-21Ti-25Hf-4Al Alloy

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