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Meeting Materials Science & Technology 2020
Symposium Environmentally Assisted Cracking: Theory and Practice
Presentation Title Pit-to-Crack Transition in Stress Corrosion Cracking of Type 304 Stainless Steels Under Marine Exposure Conditions
Author(s) Alana Parey
On-Site Speaker (Planned) Alana Parey
Abstract Scope Stress corrosion cracking (SCC) poses a threat to austenitic stainless steels when exposed to chloride containing environments during the storage of nuclear waste. The temperature of the canisters decreases over time, during which dust and deliquescent salts lead to the formation of a chloride-rich brine surface environment. Previous laboratory studies often focus on either pit initiation and growth or on crack growth kinetics from a fatigue fractured pre-crack, however, these studies often focus on either pit initiation and growth or on crack growth from a precrack. This study aims to identify the mechanism for the pit-to-crack transition in SCC for type 304 stainless steel in atmospheric marine environments. Experiments will focus on seawater brine conditions that produce microcracking in the absence of externally applied stresses, which is due to residual stresses present on the surface resulting from surface finishing. Testing of these conditions will follow intermittent ripple loading techniques.
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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