Purdue University Graduate School
Purdue MSE PhD Thesis.pdf (11.56 MB)

Understanding Mechanistic Effect of Chloride-Induced Stress Corrosion Cracking Mechanism Through Multi-scale Characterization

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posted on 2023-04-17, 20:58 authored by Haozheng QuHaozheng Qu


Stress corrosion cracking (SCC) is a longstanding critical materials challenge in austenitic stainless steels (AuSS). Recently, there has been mounting concern regarding the potential for Chloride-induced stress corrosion cracking (CISCC) along arc weld seams on austenitic stainless-steel canisters used as spent nuclear fuel (SNF) dry storage containers, due to the residual stress from the welding process and exposure to chloride-rich coastal air at storage sites. To ensure the safety of the SNF storage, fundamental understanding and mitigation methods of CISCC are critical in both engineering design and maintenance of the storage canisters before and after their deployment. With the recent development of high-resolution characterization and analysis techniques, a more robust and comprehensive understanding of the fundamental TGCISCC mechanism starts to be more accessible. In this thesis, comprehensive state-of-the-art techniques, including SEM, EBSD, HREBSD, FIB, ATEM, TKD, potential dynamic measurement, XRD, and nanoindentation will be used to further understand the mechanistic mechanism of TGCISCC in AuSS from macroscopic scale down to atomistic scale. 


U.S. DOE Office of Nuclear Energy


Degree Type

  • Doctor of Philosophy


  • Materials Engineering

Campus location

  • West Lafayette

Advisor/Supervisor/Committee Chair

Janelle P. Wharry

Additional Committee Member 2

Nikhilesh Chawla

Additional Committee Member 3

Gary Cheng

Additional Committee Member 4

Maria Okuniewski

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