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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium High Performance Steels
Presentation Title Very Strong High-entropy Steel Strengthened by Multiphase of Multiscale
Author(s) Yi-Hsuan Sun, Zen-Hao Lai, Jui-Fan Tu, Yu-Jen Tseng, Hung-Wei Yen
On-Site Speaker (Planned) Yi-Hsuan Sun
Abstract Scope High-entropy steel is Fe-based alloy designed with entropy-driven compositional complexity. In this work, a novel high-entropy lightweight steel has been developed by managing microstructural complexity under compositional complexity. In this steel, a microstructure composed of austenite and D03 intermetallic compounds is obtained by duplex annealing after cold rolling. Besides, a further aging induces precipitation of nanometer-sized κ-carbides in austenite, which bring about strength increase by 700 MPa. Interestingly, the total elongation of the steel is about 15%, which is attributed to twinning-induced plasticity. Influence of κ-carbides on stacking fault energy and deformation twin was discussed in this work. Moreover, interaction between deformation twin and κ-carbide is further investigated by TEM. The present research provides an idea in alloy and microstructural design of high-entropy lightweight steel with 1.5 GPa-level yield strength, 1.7 GPa-level ultimate tensile strength and good ductility.
Proceedings Inclusion? Planned:
Keywords Iron and Steel, High-Entropy Alloys, Mechanical Properties

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Modified Model for Predicting Retained Austenite Using Informed Compositional Modeling
A New Approach for Optimizing Heat Treatment Parameters in Q&P Steel
Advanced Microstructural Characterization of Long-term Thermal Ageing Effects in Ferritic-Martensitic Steels
Advancing AF96: Next Generation Strong/Tough Steels
Analysing the Corrosion of T91 in Liquid Lead-bismuth-Eutectic
Atomistic Modeling of a Nano-precipitate Strengthened Alloy
B2 Precipitation Strengthened Medium Mn Steel Processed by Intercitical Annealing and Aging
Bridging the Precipitation Behaviour and Mechanical Properties of Cu-Ti Modified Quenched and Tempered Steel
Carbide Precipitation Strengthening Behaviour in an Additively Manufactured High-speed Steel with Unprecedented Strength
Characterization of Ductility and Microstructure Evolution in HSLA Microalloyed Steel during Continuous Casting
Contradicting Role of Martensitic Transformation on Ductility and Toughness in a Medium Mn Steel
Contribution of Two Different Microstructural Morphologies on the Mechanical Responses in Medium-Mn Steels
Deformation and Damage Evolution of AHSS in Uniaxial Tension and Plane Strain Bending
Designing the Precipitation Sequence in Triple Nano-precipitate Strengthened Austenitic Steel
Effect of Nitrogen on the Hardening Mechanisms in the Highly Deformed Steel Rex734
Exceptional Fatigue Performance of Si and V Alloyed Nitriding Steels
Extreme Strengthening of Ausformed M54 through Ambient Temperature Rolling
Grain Growth and Precipitation Dissolution Modelling in the HAZ during Welding of Nb-Ti Steels
High-fidelity Crystal Plasticity Finite Element Modeling of Multi-phase Medium-Mn TWIP-TRIP Steel: Considerations In Microstructure Reconstruction and Meshing for Capturing the Influences of Phase Constituents
High Strength and Toughness Combination in Severe Plastically Deformed Martensitic and Austenitic Steels
Improved Toughness of Warm-rolled Medium-Mn Steels Through Nano-sandwich Microstructure
Improving the Low-temperature Toughness of Ni-Cr-Mo Low-Alloy Steel Castings via Short Intercritical Heat Treatments
In Situ & Post Mortem Investigations of Carbide-free Bainitic Transformations during Continuous Cooling
Influence of N and Mn on Performance of Advanced Austenitic Stainless Steels
Intercritical Annealing of DP Steels Investigated by In Situ High Energy X-ray Diffraction Experiments
Investigating the Roles of Microstructure on High-temperature Creep Responses of Steels
J-86: Dissimilar Metal Friction Weld Development for Enhanced Capability for Power Generation Components
J-87: Effect of Si on the Liquid Metal Embrittlement Susceptibility of Advanced High Strength Steels
J-88: Effects of Cr on Corrosion Behaviors of Hadfield Steel in a Neutral Aqueous Environment
J-89: Enhancing Tensile Property and Hydrogen Embrittlement Resistance of a Medium Mn Steel by Warm Rolling
J-90: High-speed Deformation Behavior of a Heterogeneous-nano Structured Austenitic Stainless Steel
J-91: Low-temperature Impact Properties of X70 Line Pipe Steel Depending on Location and Orientation
J-92: Microstructural Characterization of EUROFER97/3-type Steels Before Neutron Irradiation
Low-density, Medium-Mn Steels: Influence of Al Content on Microstructure Related Properties
Metastability of Martensite and Bainitic Ferrite as Carbon Super-saturated Structures
Microstructure Evolution and Zinc Infiltration in an Advanced High-strength-Steel during Liquid-metal Embrittlement
Modeling the Tensile Behavior of Martensitic Low-alloy Steels Accounting of Microstructural Heterogeneities
Nano-engineering of High Performance Steels
Neighborhood Effects on Mechanically Induced Martensitic Transformation in QP Steels
New Tensile Specimens Optimized to Characterize the Localized PRW Weld Areas of ODS Steels
Nucleation during Static Recrystallization of Austenite - A Combined Experimental and Modeling Approach
Numerical Investigations of Interface-controlled Phase Transformations during Intercritical Annealing of DP Steels
On the Development of High-strength High-damping Steels: A CALPHAD Assisted Alloy Design Study
Phase Boundary Segregation Induced Strengthening in Ultrafine-grained Duplex Medium-Mn Steels
Post-partitioning Treatment to Improve Strength-ductility Combination in a Quench and Partitioning Steel
Precipitate and Texture Evolution in a Thick-gauge Niobium-microalloyed Line Pipe Steel
Residual Stresses Near Inclusion Caused by Martensite Transformation
Semi In-situ Observation of Micro-crack Formation in Dual-phase Steels
Tempering of Low Carbon Martensite, Experimental Results and Model Development
Tensile Properties and Microstructures Development of Quenching and Partitioning (Q&P) Steels during Galvannealing Process
The Effect of Varying Carbon Equivalents on Temper Embrittlement Mechanisms in Nickel-Chromium-Molybdenum Steels
The Relationship between Hydrogen Embrittlement Behavior and Pre-strain Level of Medium-Mn Steel
Ultra-high Strength Steel for Defense Applications
Very Strong High-entropy Steel Strengthened by Multiphase of Multiscale

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