Electrochemical Aspects of Stress Corrosion Cracking

Testing environmentally assisted cracking of reactor materials using pneumatic servo-controlled fracture mechanics device

“…Fracture surfaces at the interface between fatigue pre-crack and EAC crack tested at 1.3 Â 10 À7 mm s À1 displacement rate. (a) 10 Â 10 Â 55 mm 3 …”

“…Although the phenomenon of stress corrosion cracking (SCC) has long been recognized as a major cause for the failure of components and structures [1][2][3][4][5], the basic mechanisms of this process are not yet understood fully [6][7][8]. The development of standardized and practicable methods of testing is therefore a key element in a strategy to understand the kinetics of failure and to possibly mitigate and reduce the likelihood of unexpected failure caused by SCC [9,10].…”

Mechanistic and fractographic aspects of stress-corrosion cracking (SCC)

“…The surface-mobility mechanism (SMM) for SCC, proposed by Galvele and coworkers [8,[93][94][95][96], is based on surface-diffusion of atoms from an elastically stressed, atomically sharp crack tip to an adjacent vacant lattice site behind the crack tip. Equivalently, in Galvele's words, 'crack growth occurs by the capture of vacancies by the stressed lattice at the crack tip' (Fig.…”

Prediction of Corrosion of Advanced Materials and Fabricated Components

“…A table of parameters for the cases of steels in 8M NaOH at 373 K and aluminum base alloys in 1 M NaCl, pH=1.1, at 298 K can be found, for example, in Galvele (1995).…”