Inhomogeneous Deformation Observed Using High-Precision Markers Drawn by Electron Beam Lithography in a Magnesium Alloy with LPSO Phase
Inhomogeneous deformation in a magnesium alloy with long-period stacking order (LPSO) phase has been investigated using high-precision markers drawn by electron beam lithography. Mg alloys containing Zn and rare earth elements such as Y have a characteristic microstructure including the LPSO phase and the usual hcp matrix phase. The mechanical performance of this alloy is remarkably enhanced by warm-extrusion. The microstructure developed by such extrusion consists of elongated grains with fine-lamellae of LPSO phase and fine-grained matrix of hcp phase. In order to clarify the details of inhomogeneous deformation which should relate with the superior mechanical properties in this alloy, high-precision marking method using electron beam lithography has been employed. By using the method, local displacement due to tensile deformation in the Mg alloy was directly measured.
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
T. Morikawa et al., "Inhomogeneous Deformation Observed Using High-Precision Markers Drawn by Electron Beam Lithography in a Magnesium Alloy with LPSO Phase", Materials Science Forum, Vols. 638-642, pp. 1574-1578, 2010