Abstract
Dynamic response of a non-equiatomic high-entropy alloy, Cr9Mn9Fe64Co9Ni9, to shock compression is investigated via plate impact along with in situ free surface velocity measurements. Postmortem samples are characterized with transmission electron microscopy and electron backscatter diffraction. After shock compression, microstructure characterizations reveal shock-induced stacking faults, the Lomer–Cottrell dislocation locks, nanotwins, and the face-centered cubic (FCC) to hexagonal close-packed (HCP) and FCC to body-centered cubic (BCC) transitions. The HCP and BCC phases follow Shoji–Nishiyama and Kurdyumov–Sachs orientation relations with the FCC matrix, respectively. Large-scale molecular dynamics simulations are conducted to illustrate the phase transition mechanisms. The BCC phase can form via the FCC–HCP–BCC path.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
