The initial stage of surface modification of magnesium alloys by high intensity pulse ions beam

Abstract

The initial stage of high intensity pulsed ion beam irradiated magnesium alloys was studied by MD simulation. Specimens containing Mg 17 Al 12 precipitation were modeled to investigate the evolution of magnesium alloys during several picoseconds after a high-energy ion impacting. It was found that the Mg 17 Al 12 precipitation has little effects on the kinetic energy evolution in the heat zone, but considerable effects on strength of kinetic energy peak moving to the deep matrix and on the surface morphology of the magnesium alloy at thermal equilibrium state. The thickness of the heat zone is independent on the temperature of surface region.

AZ91 Magnesium Alloy CMT Cladding Layer Processed Using Friction Stir Processing: Effect of Traverse Speed on Microstructure and Mechanical Properties

“…Magnesium alloys, due to their aforementioned advantages, have been shown to be highly valuable in several industries such as automotive [6][7][8], aerospace [9], biomedical [10,11], and national defense [12]. Nevertheless, the comparatively low modulus of elasticity, inadequate wear resistance, and elevated corrosion rate of magnesium alloys make their surfaces prone to wear, scratches, and other forms of damage when in use [13]. Cold metal transfer (CMT)-based surfacing technology presents a viable way to repair the damaged structural components made of magnesium alloy.…”