Abstract
The paper reports the results of the study of highly effective relaxation mechanisms of plastic deformation in Cu-Al single crystals and their effect on mechanical properties and tendency toward strain localization. The experiments concern a wide range of aluminium content (0–16 at. % Al) in copper based single crystals, tested in tension. These were oriented in the centre of stereographic triangle. Slip markings, changes of crystal shape, strain hardening rate and strain rate sensitivity provided independent information permitting to identify the mechanism of relaxation and to determine its kinetic features. It was found that selfinduced entry of critical slip system causes sudden decrease of hardening rate, changes the strain rate sensitivity and leads to strain localization. The effect occurs regardless the crystal composition but its extent is dependent on Al content. The model of the relaxation mechanism has been proposed.
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.
