Abstract
A pulsed magnetic field (PMF) was introduced into the solidification of pure magnesium and the effect of structure refinement is investigated. The results show that remarkable microstructural refinement is achieved when the pulsed magnetic field is applied. The morphology is characterized as the columnar grains at the periphery and equiaxed grains at the core. The average grain size in the center of ingot is refined to 260m at the optimal processing parameter (5Hz, 200V). The pulsed magnetic field increases melt convection during solidification, as a result, the stress fractures the dendrites inwards from the mould wall, and the fractured dendrites act as nuclei, so the big columnar grains are prohibited.
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.
