Optimizing image contrast of second phases in metal alloys

0301 basic medicine 0303 health sciences 03 medical and health sciences
DOI: 10.1016/j.ultramic.2021.113346 Publication Date: 2021-06-24T13:24:05Z
ABSTRACT
Novel imaging strategies in the scanning electron microscope aimed at significantly improved image contrast of second phases in metal alloys are described. These include the use of low accelerating voltages, small working distances, and a novel detection system. Contrast is assessed as a function of voltage and optimized imaging conditions which result in much improved image quality are presented. These strategies are applied to two precipitation hardened Ni-base alloys, a cast single crystal and a hot isostatically pressed sample.
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