Effect of heat treatment on electromagnetic shielding effectiveness of ZK60 magnesium alloy

Enhanced Electromagnetic Interference Shielding of Mg–Zn–Zr Alloy by Ce Addition

“…5c) indicated that the Mg-Zn-Ce phase was a orthorhombic structure, which was consistent with the report by Jeong et al [17]. The Mg-Zn-Ce phase has the similar composition to (MgZn) 12 Ce phase reported by Kevorkov and Pekguleryuz [15]. (MgZn) 12 Ce phase was considered as a continuous substitutional solid solution of Mg 12 Ce phase by exchanging Mg by Zn while keeping a constant Ce concentration [15].…”

“…The Mg-Zn-Ce phase has the similar composition to (MgZn) 12 Ce phase reported by Kevorkov and Pekguleryuz [15]. (MgZn) 12 Ce phase was considered as a continuous substitutional solid solution of Mg 12 Ce phase by exchanging Mg by Zn while keeping a constant Ce concentration [15]. Mg 12 Ce, Mg 41 Ce 5 and Mg 17 Ce 2 phases, observed in Mg-Zn-Zr-Ce alloys in other studies [15,18,19], were not found in the present work.…”

“…Our previous investigation showed that the SE of magnesium alloys could be improved by the precipitation of secondphase particles after heat treatment [12,13]. Ce is a typical rare earth element, the solid solubility of which in magnesium solid solution is extremely low, i.e., the maximum value is about 0.5 wt% (0.09 at.%) at 592°C [14,15].…”

The effects of vacuum annealing temperatures on the microstructure, mechanical properties and electrical resistivity of Mg–3Al–1Zn alloy ribbons

“…Ordinary solidification of Al in magnesium is 11.5 wt %, which is much higher than that of any original AZ31B contents, and it may be that no more Al atoms can precipitate. A regional point scan using EDS shows that the nanoparticles are of about Zn magnesium alloys, the Zn weight percentage is higher than the matrix [9]. The Mg 0.97 Zn 0.03 phase has a relatively low melting point and will decompose at 623 K. The phenomenon of the Mg 3 YZn 6 phase on mechanical property enhancement has been reported on Mg-Zn-Y-Zr alloys, and its transition temperature is about 720 K. From Fig.…”

“…Hexagonal metals present a more complex case due to their low symmetry, which restricts the number of slip systems, and their strong plastic anisotropy. As for other use of vacuum treatment of magnesium, such as AZ31, AZ61, ZK60, ZE41 and AZ80 are mainly on the encouraging the corrosion resistance and vacuum diffusion bonding [9,10,11,12].…”