Design, implementation, and application of original methods for the microstructural characterization of powder metallurgy tool steels

Beschreibung

This work proposes and implements novel microstructural characterization methods that serve as tools to both describe and understand the carbide morphological traits of powder metallurgy high-alloyed tool steels. To that end, the presented approaches are built around physical descriptors that effortlessly motivate the discussion of the underlying stochastic mechanisms that are responsible for microstructure formation. Using the developed techniques, this dissertation explores the effect of the process variables during hot isostatic pressing, the most widespread manufacturing route for PM tool steels, on the carbide size, shape, and arrangement of the commercially available high-speed steel PM HS 3-3-4. In this process, new process-structure links were revealed that bring us one step closer to fully understanding this particular corner of Materials Science and Engineering

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Santiago Manuel Benito

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Stereologie Gefügekunde Pulvermetallurgie Quantitative Mikroskopie Mikrostruktur

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