  Compositionally complex alloy systems containing more than five principal
elements allow exploring a wide range of compositions, processing, and
structural variables with the hope for identifying unique properties. Such
opportunities also apply to designing materials for improved corrosion
resistance, regulated by a self-healing passive film. Such a rich landscape in
reactivity and protectivity demands the search for high-throughput experimental
testing workflows to uncover key metrics, indicative of superior properties. In
this communication, one such methodology is demonstrated for evaluating
passivation performance of a combinatorial library of
Al0.7-x-yCoxCryFe0.15Ni0.15 thin film alloys in deaerated 0.1 mol/L H2SO4(aq),
using a scanning droplet cell.
