AI reveals how coating thickness changes the link between surface roughness and pitting resistance
Materials ScienceChemistry
THE AI ANGLE
Uncovering interactions between coating thickness and roughnessResearchers used machine learning on 90 steam-coated aluminum samples to predict pitting corrosion resistance. The model showed that the interaction between surface roughness and film thickness flips from positive to negative near 2,200 nanometers. Engineers must evaluate physical features together across growth regimes rather than assessing roughness in isolation.
THE TEACHING ANGLE
Students can debate whether surface roughness reflects protective coverage or defect pathways as a coating grows thicker.Read the original at phys.org Generate teaching or study materials
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