Analysis of Precipitate Redistribution in Inconel 617 Using Integrated Electron Backscatter Diffraction and Energy Dispersive Spectroscopy
Inconel 617 (IN617), a candidate alloy for applications in the Next Generation Nuclear Plant, derives its oxidation resistance and strength at temperatures above 900°C from both solid solution strengthening and the precipitation of carbides . Cr-rich carbides (usually M23C6) reside primarily on grain boundaries, while Mo-rich carbides (usually M6C) tend to be within grains [1-4]. Both intragranular and intergranular carbides play an important role in the creep behavior of the alloy . During creep, intragranular carbides can dissolve and re-precipitate at grain boundaries, especially on boundaries in tension . While the precipitate distribution before and after creep deformation has been investigated, the role of grain boundary character has not been included in the analysis.
Frary, Megan; Schlegel, Scott M.; Hopkins, Sharla; Young, E.; Cole, James; and Lillo, Thomas. (2009). "Analysis of Precipitate Redistribution in Inconel 617 Using Integrated Electron Backscatter Diffraction and Energy Dispersive Spectroscopy". Microscopy and Microanalysis, 15(S2), 24-25.