Effect of Yttrium Addition on Mechanical and Microstructural Properties of Magnesium Alloy Systems
Magnesium is the lightest metal with a density of 1.738 g/cm3. It is essential to utilize magnesium by alloying
with rare earth elements such as yttrium to take advantage of its lightness. Magnesium (Mg) that has HCP crystal structure
shows tremendous anisotropy which can be eliminated by alloying Mg with different elements or modifying the production
parameters. Another problem caused by the crystal structure of magnesium is low formability which can also be overcome
by alloying. In this study, the effect of yttrium as an alloying element on magnesium alloy systems was studied. It was
observed that Mg-Y intermetallic compounds piled up at grain boundaries hindered the grain coarsening. The aim of this
study is to develop lightweight and mechanically improved magnesium alloys.
Keywords: Magnesium, magnesium alloy, microstructure, tensile test, hardness test, yttrium.