Abstract
The effect of strain rate (SR) on the stress corrosion crack propagation rate (CPR), for strain rates covering a wide range of values (10 −6 s −1<20 s −1) was studied for numerous systems. The increase in the SR value was found to produce a monotonic increase in the CPR values. It was also observed that the accelerating effect of the SR was always higher for intergranular stress corrosion cracking (IGSCC) than for transgranular stress corrosion cracking (TGSCC). Typical slopes measured for log CPR vs log SR plots were α=0.5 to 0.7 for IGSCC and α=0.2 to 0.3 for TGSCC.
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