Direct Preparation of Nano-Quasicrystals via a Water-Cooled Wedge-Shaped Copper Mould

الملخص EN

We have successfully synthesized multicomponent Mg-based nano-quasicrystals (nano-QCs) through a simple route by using a water-cooled wedge-shaped copper mould.

Nanoscale QCs are prepared directly on tip of wedge-shaped castings.

The further study shows that nano-QCs in the Mg71Zn26Y2Cu1 alloy show well microhardness of greater than HV450.

Electrochemical properties of three kinds of quasicrystal alloys are investigated in simulated seawater.

The Mg71Zn26Y2Cu1 nano-QC alloy presents the best corrosion resistance in this study for the formation of well-distributed nano-QC phases (1~5 nm) and polygonal Mg2(Cu,Y) nanophases (40~50 nm).