For this reason, a large number of models has been developed for intergranular and transcrystalline stress corrosion cracking, placing emphasis either on the
electrochemical, electromechanical or the physical mechanism [8–13]. From among
numerous models of intergranular SCC in copper, the most popular is continuous anodic
dissolution process [1,8–10], but transcrystalline cracking is consistent with the discontinuous cleavage-like mechanism