Influence of ruthenium in a model Co-Al-W superalloy

Daniel Sauza, Peter Bocchini, Ding-Wen Chung, David Dunand & David Seidman
The effect of 2 at.% Ru addition on a base Co-8.8Al-7.3W at.% superalloy, consisting of a gamma-(fcc) matrix with gamma’-(L12 structure) precipitates is studied using atom-probe tomography. Ru is found to partition to the gamma' precipitate after aging at 900C for 16h.
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