Abstract
The structures and room temperature tensile properties of two magnesium alloys processed by the liquid dynamic compaction (LDC) rapid solidification technique were investigated. The two compositions selected for this study were Mg-8.4wt.%Al-0.2wt.%Zr and Mg-5.6wt.%Zn-0.3wt.%Zr. The magnesium alloys were spray-deposited as discs about 15 cm in diameter by 30 mm in thickness against a water-cooled copper substrate. The as-deposited grain sizes ranged from 30 to 60 μm in diameter, associated with a solidification rate of about 10 3 Ks −1, and consisted of equiaxed grains. Densification of the as-deposited LDC compacts was successfully achieved by both hot extrusion and hot isostatic pressing (HIP). The mechanical properties of the extruded or hot pressed, heat treated LDC products were determined at room temperature. The improvements in strength and elongation values of the extruded and heat treated LDC MgAlZr alloy over those of the equivalent ingot product were attributed to the microstructural refinements achieved by LDC and extrusion processing. The as-extruded LDC MgZnZr alloy exhibited high elongation values at reasonable strength levels.
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.
