Fig. 2: Mechanical properties and microstructural features.
From: Inhibiting weld cracking in high-strength aluminium alloys
a The average nanoindentation hardness recorded for each region across the weld where the BM, HAZ, WM and FQZ represent base metal, heat affected zone, weld metal and fine equiaxed zone, respectively. b The estimated strengthening contributions arising from the precipitate (ĪĻppt), grain size (ĪĻgb), solute (ĪĻss) and dislocation (ĪĻdis) strengthening, respectively. Ļ0 represents the baseline strength of pure aluminum. c (From left to right) distributions of precipitates in the grain interiors, distributions of grain sizes, scanning points used for chemical analysis by electron probe micro analysis (EPMA) and density of geometrically necessary dislocations (ĻGND).
