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Meeting MS&T23: Materials Science & Technology
Symposium Progressive Solutions to Improve Corrosion Resistance of Nuclear Waste Storage Materials
Presentation Title Chloride-induced Stress Corrosion Crack in Spent Nuclear Fuel Canisters: Understanding and Mitigating
Author(s) Haozheng Qu, Janelle P. Wharry
On-Site Speaker (Planned) Haozheng Qu
Abstract Scope This talk captures the state-of-the-research of fundamental understanding and repair techniques of chloride-induced stress corrosion cracking (CISCC) in nuclear waste storage canisters. In the U.S. only, more than 86,000 metric tons of nuclear waste are stored in over 3,300 stainless steel canisters and CISCC threat of the weld regions is a mounting concern in the nuclear industry. Here, we review the recent advancement in the fundamental understanding of CISCC mechanism discovered with the state-of-art characterization techniques. The crystallographic and micromechanical perspectives of transgranular CISCC will be assessed, including the strain mismatch across grain pairs along crack path, correlation between hardness and CISCC susceptibility, phase transformation etc. We will evaluate recent development and application of cold spray coating as a solid-state repair and mitigation method for canister CISCC. The state of knowledge for cold spray will be discussed in the context of fundamental mechanism and practical implication of CISCC resistance improvement.


An Integrated Data-driven and Physics-driven Approach Towards Discovering Optimal Nuclear Waste Immobilization Glass
Chloride-induced Stress Corrosion Crack in Spent Nuclear Fuel Canisters: Understanding and Mitigating
Evaluating the Sensitivities of an Environmental Cracking LEFM-based Model for Use in Realistic Lifetime Predictions of Nuclear Waste Storage Casks
Gel Layer Structures and Properties of Silicate Glasses: Understanding the Corrosion of Glasses for Nuclear Waste Disposal
SiON Protective Coatings for U-shaped Stainless Steel
Structural Descriptors Controlling Sulfur Solubility in Borosilicate Glasses
Topological Model of the Dissolution Kinetics of Borosilicate Glasses

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