Abstract
In this study, electrical pulses were used as a treatment to investigate the role played by dislocations in the deformation mechanism of the Al0.1CrFeCoNi high-entropy alloy (HEA) at different stages of deformation. The results demonstrated that the HEA was completely deformed through dislocation slip during compression, and no twins were evident. Under the action of Electric pulse treatment (EPT), the specimen expanded thermally owing to Joule heating. Additionally, the pulse current accelerated the movement of the dislocations and led to dislocation annihilation, softening the material without changing the grain shape. However, further application of EPT with the same parameters failed to produce significant changes in the dislocation density, a phenomenon that has rarely been reported before. Our results provide strong theoretical and technical support for the rapid annealing of metallic materials during processing and the use of HEA in electrical structural components, such as wear-resistant coatings or parts resistant to galvanic corrosion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.