13:30 〜 13:55
[14C-SIS1-01] Special Invited: Ignitability of Magnesium Alloy Powder by Gas Atomization Method and Microstructural Changes of the Alloy
キーワード：magnesium alloy powder, gas atomization, combustion, oxide film, microstructure
The magnesium alloys are the lightest metallic materials for practical use, has high specific stiffness, and attracting attention as a material that is non-toxic to the biological environment. Furthermore, depending on their respective composition, they may exhibit good thermal conductivity, damping capacity and special mechanical properties. Therefore, further applications in the automotive and aerospace fields are expected. However, the segregation and coarsening of the microstructure caused by the simple addition of alloying elements has various problems with properties deterioration.
One of the microstructure refinement methods that can solve these problems is powder metallurgy. Magnesium alloy powder can be produced by a gas atomization method, and if it contains calcium, it can be stably handled without burning. It results from a protective layer containing alloying elements. Additionally, the microstructure of the sintered or additively manufactured material is uniform and fine, demonstrating the advantages of powder.
One of the microstructure refinement methods that can solve these problems is powder metallurgy. Magnesium alloy powder can be produced by a gas atomization method, and if it contains calcium, it can be stably handled without burning. It results from a protective layer containing alloying elements. Additionally, the microstructure of the sintered or additively manufactured material is uniform and fine, demonstrating the advantages of powder.