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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium High Temperature Creep Properties of Advanced Structural Materials
Presentation Title Creep Behaviors of High-entropy Alloys
Author(s) Lia Amalia, Di Xie, Shuying Chen, Weidong Li, Dongyue Li, Yong Zhang, Chelsey Hargather, Yanfei Gao, Peter Liaw
On-Site Speaker (Planned) Peter Liaw
Abstract Scope To ensure reliability and safety, creep resistance is an important property for high-temperature applications. Although the room-temperature behavior of high-entropy alloys has been studied extensively, the creep behavior has only been cursorily studied. Using data from the studies that have been performed, we are able to paint a picture of the creep behavior of high-entropy alloys. Creep can be characterized by conducting tests to reveal its uniaxial tension or compression behavior, stress-relaxation behavior, strain-rate-jump behavior, and nanoindentation creep behavior. From these tests, key deformation quantities could be obtained, such as the stress exponent (n), activation volume (V), and activation energy (Q). Furthermore, several non-neglectable factors affect the creep behavior of HEAs, including high entropy, lattice distortion, sluggish diffusion, stacking fault energy, alloying elements, and grain size, many of which are readily studied with computational techniques. The creep behavior of medium- and high-entropy alloys will be compared to commercial alloys.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, High-Temperature Materials, Mechanical Properties

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Microstructure Sensitive Model to Account for the Non-isothermal Creep Behavior of Ni-based Single Crystal Superalloys
CALPHAD Alloy Design for Diffusion-mediated Plasticity-Induced Phase Transformations for Creep Resistant Multicomponent Principal Elemental Alloy
Creep and Creep-ratcheting Behaviour of Selective Laser Melted (SLM) Additively Manufactured (AM) Inconel 718
Creep and Tensile Properties of Five Novel, Computationally Designed Ni-based SX Superalloys
Creep Behavior at Elevated Temperatures of Several Polycristalline Ni-based Superalloys Strengthened by MC-carbides
Creep Behaviors of High-entropy Alloys
Creep Ratcheting of a HP+NbW (MA) Steam Methane Reformer Tube Alloy
Creep Simulations of Refractory High Entropy Alloys
Crystal Plasticity Creep Modeling in Cobalt Based Superalloys
Effect of Alloying Additions on Twinning in Ni-based Superalloys
Effect of the Casting Process on the Microstructure and Creep Properties of a Cast Ni-Based Alloy
F-1: A Study on Microstructure and Mechanical Properties of Fe-Cr-Ni-Al-V Alloys
F-2: Effects of Controlling Ti and Al on Microstructure and Mechanical Properties of Fe-Cr-Co-Al-Ti Ferritic Alloys
F-3: Strengthening Against Creep at Elevated Temperature of HEA Alloys of the CoNiFeMnCr Type Using MC-carbides
Induction of Alternative Shearing Pathways during Creep Deformation of Nickel Based Superalloys via Local Phase Transformation Strengthening
Mechanisms of Creep in Additively Manufactured NiCoCr and ODS-NiCoCr Multi-principal Element Alloys
Role of Cr Content on Creep-rupture Performance in Alumina-forming Austenitic Alloys
The Elevated Temperature Creep, Fatigue, and Fracture Behavior of Nickel-based Superalloys Manufactured by Direct Metal Laser Sintering
Thermal Creep Models Derived from a Comprehensive Multiple Heat 9Cr Tempered Martensitic Steels Database
Threshold Creep Behaviour of Ni-based Superalloy IN740H

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