1. Stress Corrosion Cracking Research Guide
This page depicts the environmental chamber created to
surround the actuator arm

2. The load chain and CT specimens were
designed to meet ASTM E647
Crack growth was measured using the direct
current potential drop (DCPD) method to
circumvent temperature and corrosion
affecting the strain gauges
U-bend samples were also tested to
examine the effects of residual stress rather
than applied stress
U-bend surface SCC over 17 days
U-bend test sample
Compact Tension sample

3. Stress Corrosion Cracking Research Results
This graph shows varying SCC
rates dependent on
environmental and material
factors. Increased temperature
had a large effect on SCC
acceleration
This graph shows SCC
pitting rates dependent
on environmental and
material factors. There
was an upper threshold
to pitting initiation due
to ion consumption from
neighboring pits