High-strength Mg–Zn–Y alloys produced by powder metallurgy

Superplastic Behavior in MgZnY Alloy with Dispersed Quasicrystal Phase Particles

“…The SAED pattern has quasiperiodic icosahedral two-fold symmetry; therefore, a quasicrystal phase particle (Mg 3 Zn 6 Y 1 ), which is marked by white arrows, with a size of several hundred nanometers is shown to exist in the extruded alloy. The quasicrystal phase has also been observed in MgÀZnÀY alloy systems formed by the wrought process, [6][7][8]10,11] and the quasicrystal icosahedral phase is formed in the matrix when the Zn/Y ratio is 2-8. [17] The Zn/Y ratio here is 8 and is within this range.…”

Microstructural changes in an extruded Mg Zn Y alloy reinforced by quasicrystalline I-phase by small additions of calcium, manganese and cerium-rich mischmetal

“…Among these phases, the quasicrystalline I-phase with its quasiperiodic lattice structure has attracted a lot of attention because of its unique properties as high hardness, thermal stability, high corrosion resistance, low friction coefficient and strong bonding with the magnesium matrix [8][9][10][11][12][13][14]. Despite of the good properties of these new Mg alloys, an additional increase of strength is required to replace Al alloys in structural applications.…”

High Strength Mg-5Sn Alloy Prepared by Rapidly Solidified Powder Metallurgy

“…As a unique material preparation technology, the RS powder metallurgy (P/M) technology can obtain matrix of super fine grain and dispersing nano-sized precipitated phases and improve sharply the mechanical properties. The emergence of RS P/M technology opens a new road for the research and development of super-high strength magnesium alloys [8][9]. The RS P/M method have been investigated for magnesium alloys, resulting in remarkable improvement in strength [10][11][12][13][14].…”