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EFFECTS OF LASER SHOCK PEENING ON SCC BEHAVIOR OF ALLOY 600

Description: In this study, the effects of laser shock peening (LSP) on stress corrosion cracking (SCC) behavior of Alloy 600 in tetrathionate solution were investigated. The degree of sensitization was quantified using double loop electrochemical potentiokinetic reactivation (DLEPR) tests. The sensitized Alloy 600 was demonstrated to be susceptible to intergranular SCC in tetrathionate solution. Following LSP, residual stresses and the amount of plastic strain introduced in Alloy 600 were characterized. The effects of LSP on SCC susceptibility of Alloy 600 in tetrathionate solution were evaluated by slow strain rate tests and constant load tests. Results indicate a significant increase in resistance to crack initiation and decreased susceptibility to SCC after LSP.
Date: August 1, 2013
Creator: Telang, Abhishek; Gill, Amrinder; S.R.Mannava; Vasudevan, Vijay K.; Qian, Dong & Teysseyre, Sebastien P.
Partner: UNT Libraries Government Documents Department