Abstract
Stress corrosion cracking of SUS310S steel single crystals with ‹100›, ‹110› and ‹111› growth directions has been potentiostatically examined on crystallography of the fractured surface in 35% MgCl2 solution at 80°C. The useful results have been surmarized as follows:
(1) Anodic current density in polarization curve exponentially increased with potential without the occurrence of apparent active, passive and pitting regions.
(2) Time to fracture exponentially decreased with the increase of potential above corrosion potential.
(3) Macroscopically determined crystallographic orientations by trace analysis were located within 10° of latitude from {100} to {110}.
(4) Microscopically determined crystallographic orientations by inclination method were also located within 10° of latitude from {100} to {110}.
