Abstract
The effect of grain size on the adiabatic shear behaviour of AZ31 Mg alloy under high-strain-rate deformation was investigated in the present study. Samples with three types of grain sizes were prepared, and the hat-shaped samples were subjected to the high-strain-rate deformation. The high-strain-rate deformation was conducted at 1600 s–1 by using a split Hopkinson pressure bar at 200°C. The microstructure before and after deformation was observed by optical microscopy and electron backscatter diffraction. The results indicated that the adiabatic shear sensitivity increased with the increase in the grain size. The calculation results indicated that the dynamic recrystallisation grains in the adiabatic shear band were formed by rotational dynamic recrystallisation.
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.
