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Meeting Materials Science & Technology 2020
Symposium Environmentally Assisted Cracking: Theory and Practice
Presentation Title Analyzing High-angle Grain Boundary Network Connectivity Using Graph Theory
Author(s) Syeda Noor E Sumaiya, Matthew A. Steiner
On-Site Speaker (Planned) Syeda Noor E Sumaiya
Abstract Scope Special boundaries with low interfacial energies, such as annealing twins in FCC metals, typically possess enhanced corrosion resistance and can inhibit stress corrosion cracking when incorporated into a microstructure in ways that break up the connectivity of more susceptible interfaces. Such grain boundary engineered microstructures are typically analyzed using parameters than can be readily extracted from EBSD data, notably the fraction of coincident site lattice (CSL) boundaries, or the ratio of triple junctions categorized by how many CSL boundaries they are coordinated with. Other techniques such as fractal analysis have been utilized in a limited number of cases, but none of these methods provides the type of local or directional specificity necessary to address gradated or heterogeneous microstructures. We will present preliminary results using graph theory based boundary connectivity measurements that are better suited to handle non-uniform microstructures and can be automated to run on standard EBSD data.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Analyzing High-angle Grain Boundary Network Connectivity Using Graph Theory
Assessing the Influence of Hydrogen on The Deformation Behavior of a Precipitation-hardened Nickel-based Alloy
Atomistic Simulations of the Transport and Trapping of Hydrogen in Zirconium
Corrosion Fatigue Testing of AA7085-T7451 in Complex Atmospheric Environments of Varied Humidity with Surface Salt Loading
Cracking Mechanism of Carbon Steel in Presence of H2S/CO2 and H2S Scavenger, a Theory Based on Electrochemistry, Raman, and Tensile Testing
Directional Sensitization Responses in 5XXX Series Aluminum Alloy Microstructures
Elucidating the Loading Rate Dependence of Hydrogen Environment-assisted Cracking Behavior in Ti, Fe, Al, and Ni-based Structural Alloys
Hydrostatic Instability as the Underlying Mechanism of Hydrogen Embrittlement
Introductory Comments: Environmentally Assisted Cracking: Theory and Practice
Microstructure and Beta Phase Distribution Effects on Environmental Fracture Susceptibility in Al-Mg Alloys
Pit-to-Crack Transition in Stress Corrosion Cracking of Type 304 Stainless Steels Under Marine Exposure Conditions
The Relationship between Post-build Stress-relief Heat Treatment and the Hydrogen Embrittlement Susceptibility of Additively Manufactured IN625
The Role of SCC in Corrosion Fatigue Kinetics of AA5456-H116
Understanding Pitting Corrosion in a High-performance Aluminum Alloy by 4D X-ray Microtomography

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