Abstract
Various structures including dislocations, nanotwins, and nanograins were induced in solid solution austenitic steels by dynamic plastic deformation, followed by aging treatment to investigate their precipitation and hardening. Microstructural characterization showed that gamma prime nanoparticles are uniformly distributed in the coarse grains with high-density dislocations, but located on the twin boundaries of nanotwinned grains. Nevertheless, eta nanoprecipitates occur on the boundaries of nanograins. Surprisingly, considerable precipitation hardening of the eta nanoprecipitates was obtained in the nanograins, comparable to precipitation hardening of gamma prime nanoprecipitates in the coarse grains, which is significantly different from the deleterious effect of eta phase on strength in coarse-grained materials.
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.
