Abstract
Stress corrosion cracking (SCC) produced by surface scratches has great effect on the safety and reliability of nuclear power plant. To understand the effects of the angle of surface scratches on SCC behavior of nickel-based alloy, the stress and strain field nearby the surface scratches of nickel based alloy is simulated using ABAQUS. Results show that the high stress and strain region increases as the angle increases, which leads to an increase in SCC growth rate. The high stress and strain region offset toward the scratch angle, which indicates that the crack is more likely to crack and extend along the direction of scratch angle.
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