3D characterization 3D microstructure 7003 alloy AlMgSi alloy Cast Al-Si alloys DSC ECAP EN AW-6082 LPSO-phase Mg-Nd-Zn alloys TEM TIG fillers X-ray diffraction alloying aluminium alloy aluminum nanocomposites aluminum welding connectivity corrosion resistance damage deformation behaviour digital image correlation dislocations dynamic recrystallization electrical conductivity in situ synchrotron radiation diffraction in-situ tensile deformation magnesium alloys materials modelling mechanical properties