The effect of Ru on precipitation of topologically close packed phases in Re – containing Ni base superalloys: Quantitative FIB-SEM investigation and 3D image modeling

A new approach to clarify the ruthenium effect on the precipitation of topologically close packed (TCP) phases is described in the paper. It is based on focused ion beam – scanning electron microscopy (FIB – SEM) dual beam methodology as well as three-dimensional imaging. The high-temperature capabilities of nickel base superalloys can be improved by alloying with refractory elements. With excessive refractory element content or excessive...