ProgramMaster Logo
Conference Tools for 2024 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2024 TMS Annual Meeting & Exhibition
Symposium Environmentally Assisted Cracking: Theory and Practice
Presentation Title Oxidation Mechanism Transitions in Tungsten Driven by Scale Cracking
Author(s) Samuel A. Humphry-Baker, Dora Nagy, Yusha Lin, James Davidson, Sercan Cetinkaya, Vanessa Peterson, Edward Obbard, Kevin Laws, Patrick Burr
On-Site Speaker (Planned) Samuel A. Humphry-Baker
Abstract Scope Tungsten based materials may be exposed to high temperature air or steam in fusion reactor accident scenarios. This would cause extensive oxidation and the attendant release of hazardous transmutation products into the environment. For tungsten, crack formation causes a transition from protective, parabolic oxidation kinetics towards unprotective, linear kinetics. Cracking is driven by the density mismatch between the oxide and substrate. In this presentation we demonstrate the implications of this phenomenon for metallic tungsten and tungsten borides, which are candidates for the first wall and neutron shielding. We report measurements of the cracking-related transition in oxidation kinetics using in-situ neutron diffraction studies coupled with ex-situ thermogravimetric analysis. We show our development of oxidation mechanism maps, which allow mechanistic predictions to be made as a function of time and temperature. Plans to optimise the materials for enhanced oxidation resistance will be described.
Proceedings Inclusion? Planned:
Keywords Environmental Effects, High-Temperature Materials, Nuclear Materials

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Characterizing Stress-assisted Grain Boundary Diffusion of Zinc During Liquid Metal Embrittlement of AHSS
Consequences of Micro-alloying Elements and Microstructure on the Hydrogen Embrittlement Sensitivity of Carbon Steels
Corrosion Behavior of Hot-wire Laser DED Stainless Steel 316L Using Four Print Directions
Cracking of Additively Manufactured 316L SS in LWR-relevant Condition
Developing a Crystal-based Tribocorrosion Modeling Framework for Aluminum: An Integrated Experimental and Computational Study
Directionally Isolated Sensitization Responses in 5XXX Series Aluminum Alloy Plate Microstructures
Effect of Chloride Concentration on the Atmospheric Environment-assisted Cracking Behavior of Sensitized AA5083-H131
Effect of Crack-initiating Feature on the Environment-assisted Cracking Behavior of Sensitized AA5456-H116 in Marine Environments
Effect of Hydrogen on the Deformation Mechanism and Grain Boundary Decohesion of an Austenitic FeCrNi Alloy
Effect of Liquid Metal Exposure on Structural Alloy Ductility
Elucidation of Corrosion and Freeze/Thaw Mechanisms in Light Alloys by In situ X-ray Micro and Nanotomography
Enhanced Understanding of the Protocol for Characterizing Environment Assisted Cracking and Justification for a Modified Testing Standard
Evaluation of Environmentally Assisted Cracking on Wire Arc Additively Manufactured (WAAM) AISI 316LSi.
Exploring the Nature of Passivation Film in Chloride Salt Solution Under Tensile Loading in a Non-equiatomic Metastable High Entropy Alloy
Freeze-thaw Induced Damage Evolution in AA7075-T651
Fundamental Design of Alloys Resistant to H-embrittlement: Simulation Insights on Nanoscale H-defects Interactions
High-resolution Characterization of High-temperature Water Corrosion Under Compression vs Tension
Hydrogen and Nitrogen Contents Effects on Mechanical Behavior of Austenitic Stainless Steel
Hydrogen Content and Charpy Toughness of Pipeline Steels With Different Hydrogen Charging Processes
Hydrogen Embrittlement in Ni-Alloys
Hydrogen Embrittlement of Nickel-based Superalloys: Some Impacts of γ’-Ni3Al Precipitate States on Hardening Mechanisms and Damage Processes.
Impact of Helium Bubbles on Fracture Stress From Phase Field Simulations
Insights of Hydrogen Embrittlement for Austenitic Stainless Steels and Their Welds
Insights of Organic Compounds as Permeation Barriers for Hydrogen Embrittlement Prevention in Steel
Kim-Kim-Suzuki (KKS) Phase Field Model for Hydrogen-assisted Cracking
Long-term Performance of High-Cr, Nickel-based Alloys and Weldments in LWR Environment
Micromechanisms Behind Liquid Metal Embrittlement in Galvanized TWIP Steel
Microstructural Aspects of the Deterioration of Creep Life for Austenitic Steels in CO2 Environment
Multi-physics Phase Field Modelling of Corrosion and Hydrogen Embrittlement
Multiscale Modeling of Fatigue Crack Growth and Environmental Effects
Multiscale Study of the Impact of Hydrogen-grain Boundaries Interaction on Plasticity Mechanisms in Pure Nickel
On Hydride Nucleation and Growth in α+β Ti Alloys
Oxidation Mechanism Transitions in Tungsten Driven by Scale Cracking
Phase-field Model Incorporating Large Inelastic Strain With Application to the Oxidation of High-temperature Coating Systems
Phase File Modelling of Environmentally Assisted Cracking of Bioabsorbable Mg Alloys for Biomedical Applications
Physics-based Modeling of Corrosion Crack Dynamics and Fracture Using Meshless Peridynamics Framework
Plastic Deformation and Fracture Within the Defactant Concept
Precursor Damage Evolution and Stress Corrosion Crack Initiation of Ni-base Alloy 600 and Alloy 690 in PWR Primary Water
Prediction of Hydrogen Uptake Kinetics in Cathodically Polarized Metals
Probing the Mechanism Underlying the Interplay Between the Microscale Plastic Flow and the Atomic-scale H Diffusion Through Concurrent Atomistic-continuum Simulations
Recent Learning on Improving IASCC/SCC Resistance of Austenitic Stainless Steel in High Temperature Water
Recent Progress on Environmentally Assisted Cracking in Molten Salts: Fission Products and Other Nuisances
The Need for Understanding of the Differences Between Environment Assisted Fracture in Conventional Full Immersion Environments and Atmospheric Environments and how Newly Developed Crack Tip In-situ Techniques may Provide Insights
Towards Next Generation, Low Cost, Hydrogen Resilient Austenitic Steels: Relating Composition, Microstructure and Deformation Modes Across Length Scales
Using In Situ Crack Tip pH Measurements to Understand the Corrosion Fatigue Susceptibility in 2xxx (Al-Cu) and 7xxx (Al-Zn) Al Alloys

Questions about ProgramMaster? Contact programming@programmaster.org