Abstract
This study examines the stress corrosion cracking (SCC) behavior of the Fe39Mn20Co20Cr15Si5Al1 (at.%) high entropy alloy in a salt solution at room temperature. The research employs slow strain-rate tensile tests and advanced analytical techniques, such as electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM), to understand the SCC behavior. Results show that the alloy has a high susceptibility to SCC. The TEM analysis supports a slip-step dissolution model for SCC. The EBSD results suggest that cracks form at boundaries between martensite and austenite phases and propagate through interphase and inter-variant boundaries. Reducing such boundaries may mitigate the alloy's SCC susceptibility.
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