Figure 1. Secondary electron image and elemental metal fraction maps (by wt. %) of the same region of the MgLiAl alloy; white pixels are regions excluded from the analysis due to the influence of topography.
Lithium content in a lightweight MgLiAl structural alloy was mapped by the composition by difference method using the EDAX Octane Elite and Gatan OnPoint™ detectors.
Energy dispersive X-ray spectroscopy and quantitative backscattered electron imaging were used to generate spatially resolved quantitative elemental maps of magnesium, aluminum, and, for the very first time, lithium revealing single-digit mass percentages of lithium.
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