Abstract
The continuous observations of cracking in stress corrosion have been conducted on the α/β brass.
It was shown that the cracks were originated at the phase-boundary or the β-phase, though were not observed in β-grains.
It was considered that the edge dislocations might be piled up between slip planes owing to the increment of interaction, as the effect of increase of zinc content, among the dislocations and the solute atoms, or at the phase boundary as an obstacle against edge dislocations according to the following relation:
σknbG≈BT
The stress corrosion strain curves followed in the general creep rules.
