Template:NUCAPT:Nugget/13

From Northwestern University Center for Atom-Probe Tomography
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Carbide-cu-2.jpg

Heterogeneous nucleation of copper precipitates on a large carbide precipitate in a blast resistant steel. The black dots represent carbon atoms and the red surfaces are 10 at% copper isoconcentration surfaces. Knowledge of the interactions of the different kinds of precipitates in this alloy is important for determining the effects of internal structure on the mechanical properties. Note the heavily distorted nature of the precipitates that nucleated on the carbide, which indicates their nucleation mode. The box dimensions are 66 nm x 68 nm x 149 nm.