Materials and Processing Designs for High-Performance Magnesium Alloys

Abstract

Materials and processing designs for advanced magnesium alloys with fine microstructures and superior properties were established by the combination of the repeated plastic working and the Mg2Si synthesis in solid-state. The grain size was less than 1 μm via RPW process due to its severe plastic working on raw powder. The hot extruded magnesium alloys produced in industries showed high ultimate tensile strength, e.g. 420~450MPa, when employing Mg-Zn-Al-Ca-RE (Rare Earth) alloy coarse powder, having 0.5~2 mm diameter, as input materials.

Surface Modification of Magnesium Alloy by Mg2Si Coating Technology

“…In the previous works, magnesium silicide (Mg 2 Si) bulky metals fabricated by PM process indicated a superior corrosion resistance to the conventional stainless steels in SST. They also showed remarkably high hardness of 400 Hv and high Young's modulus of 120 GPa compared to other magnesium alloys (5) . In this study, the surface modification by using MgSi thin film deposited via sputtering process has been developed to improve corrosion and wear resistance of the magnesium alloys.…”