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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium High Temperature Creep Properties of Advanced Structural Materials
Presentation Title Crystal Plasticity Creep Modeling in Cobalt Based Superalloys
Author(s) Shahriyar Keshavarz, Carelyn Campbell, Andrew Reid
On-Site Speaker (Planned) Shahriyar Keshavarz
Abstract Scope The current work centers on analyzing and predicting the creep responses of cobalt-based superalloys utilizing crystal plasticity finite element methods. The model captures the effects of composition and morphology including the average size, volume fraction, and shape of the precipitates. A homogenized composition-dependent activation energy-based crystal plasticity model is developed assimilating the detailed attributes of morphology. The model can significantly expedite the computational process due to the parameterized representation of the leading features while retaining accuracy. The glide and climb dislocation mechanisms are considered the key components of the constitutive model through which the thermo-mechanical behavior of cobalt-based superalloys is addressed for an extensive temperature spectrum. The method is validated for diverse compositions, temperatures, and load intensities via experimental data.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Copper / Nickel / Cobalt, Modeling and Simulation

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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