CAMCS
Nanostructured Magnesium
Nanocrystalline Magnesium Alloys
Magnesium-based alloys are among the lightest of all structural metals. They have excellent strength (or stiffness)-to-weight ratio and are cost-effective in engineering applications. Microstructural modifications can be achieved by improvements in the techniques used to process the alloy. This has led to extensive studies of property enhancements, particularly elevated strength, induced by tailoring the microstructure. For example, a Mg70Al20Ca10 alloy with a tensile yield strength of 600 MPa and a Mg86Al9Ca5 with a compressive fracture strength as high as 727 MPa have been prepared by extrusion consolidation of gas-atomized powders. The high strength was derived from the ultrafine and nanocrystalline grain structures achieved in the consolidated alloys.
- Determine the potential of nanostructured magnesium alloys for structural applications.
- Examine the issues of formability and corrosion resistance of nanostructured magnesium alloys and their composites.