|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Environmentally Assisted Cracking: Theory and Practice
||Stress corrosion cracking study of Fe39Mn20Co20Cr15Si5Al1 (at.%) compositionally complex alloy in 3.5 wt.% NaCl salt solution
||Pranshul Varshney, Nilesh Kumar
|On-Site Speaker (Planned)
The combined effect of stress and corrosive environment may cause premature failure in engineering materials due to stress corrosion cracking (SCC) phenomenon. Compositionally complex alloys (CCAs) possess promising mechanical properties but their SCC behavior is not known. In this work, slow strain rate tensile (SSRT) test at strain rates of 10-6 to 10-4 s-1 using smooth dog-bone shaped tensile specimens was conducted on transformation induced plasticity Fe39Mn20Co20Cr15Si5Al1 (at.%) CCA in 3.5 wt.% NaCl solution at room temperature to study SCC characteristics. Advanced analytical tools including x-ray photoelectron spectroscopy and transmission electron microscopy were used to characterize microstructure of the alloy before and after SCC. The preliminary results showed non-monotonic variation in ductility with decrease in strain rates. Further analysis of SSRT data obtained at different strain rates and post-deformation microstructure including identification of corrosion product(s) and passivation film is in progress and will be discussed during presentation.
||High-Entropy Alloys, Environmental Effects, Characterization