Structure formation regularities of magnesium alloys alloyed with REM (Nd, Dy, Ho, Er)

The study is devoted to investigating the influence of 49 at.% Ti, 49 at.% Al, 2 at.% REM (Nd, Dy, Ho, Er) master alloys on the phase and structural composition, as well as the mechanical properties, of the Mg95 magnesium alloy. Using X-ray diffraction analysis, scanning electron microscopy, and tensile testing, it was established that alloying with 49 at.% Ti, 49 at.% Al, 2 at.% REM (Nd, Dy, Ho, Er) results in changes to lattice parameters, grain orientation, and mechanical properties. The highest strength (80 ± 4 MPa) and elongation (17.7 ± 1.0%) were achieved for the Mg95 magnesium alloy upon the addition of TiAlEr. The results demonstrate the potential of using rare-earth metals for the modification of magnesium alloys.