Novel Electron Detection and Imaging Strategies in the SEM for Enhanced Quantification of Second Phases

Enhanced systems for the detection of electron signals in state-of-the-art SEMs offer multiple detectors below and “in the lens” to acquire elemental contrast BSE information, allowing researchers to investigate complex, multi-precipitate alloys. Some examples of these strategies are the use of low accelerating voltages, use of in-lens detectors, and shorter working distances. State-of-the-art SEMS not only offer in-lens detectors capable of capturing SE and BSE signals but allow the researcher to sort electrons according to their energies and/or emission angles. The enhanced characterization of these samples presented in this talk will demonstrate the superior capabilities offered by use of novel detection schemes coupled with novel imaging strategies.

In this webinar, attendees will learn about:

• How the use of new detection and imaging strategies help identify secondary phase particles in precipitation hardened Ni-based superalloys, cast as a single crystal and also as a hot isostatically pressed specimen
• State-of-the-art SEM and detectors for low voltage SE/BSE imaging
• Ohio State University’s Center for the Accelerated Maturation of Materials microscopy methods to easily identify precipitates in novel metal alloys
• Crucial role of precipitates in processing and performance of superalloy components

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