Images from Thayer M.S. student Garrett Rayner (Baker lab). Preferential etching of the matrix reveals a complex precipitate structure in a high-temperature stainless steel (Fe-20Cr-20Ni-2Nb-5Al at%). Etching was performed electrolytically using a nitric acid/methanol solution. Images acquired in BSE or reversed-bias SE mode.
Dartmouth Electron Microscope FacilityDate: Tue 06-Sep-2011 Time: 09:51

Instrument: FEI XL-30 FEG ESEM -- Microscopist: Garrett Rayner.
C5-1.jpg BSE signalC5-2 Contrast.jpg reverse bias SE signal
C5-3.jpg SE signalC5-5.jpg BSE signal

Dartmouth Electron Microscope Facility