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Full-Text Articles in Metallurgy
Microstructural Characterization And Analysis Of Laser-Powder Bed Fusion Grcop-84 By Metallurgical And Neutron Scattering Methods, Robert Minneci
Microstructural Characterization And Analysis Of Laser-Powder Bed Fusion Grcop-84 By Metallurgical And Neutron Scattering Methods, Robert Minneci
Doctoral Dissertations
GRCop-84 or Cu-8Cr-4Nb (atomic %) is a structural high-heat-flux Cu alloy that is dispersion strengthened by C15 Laves Cr2Nb [Niobium Chromide] that has seen significant development with laser additive manufacturing (AM), specifically laser-powder bed fusion (L-PBF) in recent years. A review of the development, properties, and performance of GRCop alloys has been conducted and provides pertinent background. The body of research provides fundamental understanding regarding microstructure evolution and phase interaction of GRCop-84 through characterization by neutron and X-ray scattering and metallographic techniques. This research is intended to bridge fundamental research of L-PBF, Cu alloys, structural thermal conductors, and …
Temperature-Dependent Structures And Atomic Mixing Behaviors In High-Entropy Alloys, Louis J. Santodonato
Temperature-Dependent Structures And Atomic Mixing Behaviors In High-Entropy Alloys, Louis J. Santodonato
Doctoral Dissertations
The goal of the present dissertation is to advance the fundamental understanding of the atomic mixing behavior in a new class of alloys, known as high-entropy alloys (HEAs), and provide new methods to develop HEAs for practical applications. The HEA design strategy is based upon the influence of configurational entropy of mixing, which serves as a driving force for the formation of disordered solid-solution structures in certain alloys. In particular, alloys containing multiple elements have a tendency to form stable, disordered structures, sometimes with exceptional engineering properties. Despite the tendency toward structural disorder, HEAs usually have some degree of structural …