Abstract
The development of dislocation substructure has been studied in dual-phase steels using transmission electron microscopy. This substructure has been correlated with the fracture behavior of these steels. The high ductility and impact strength of the dual-phase steels seem dependent on their initial dislocation substructure, in which an important role is played by a/2 screw dislocations, which, when present in a crisscross configuration, can react, forming mobile a edge dislocations on their intersections. The presence and generation of the mobile a edge dislocations are considered here as a condition of the quasi-brittle behavior of these steels, and the nucleation of brittle cracks is discussed in terms of interactions between these dislocations.
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.
