Processing dense hetero-nanostructured metallic materials by spark plasma sintering
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Achieving high strength and high ductility in a high-entropy alloy by a combination of a heterogeneous grain structure and oxide-dispersion strengthening
2021, Materials Science and Engineering: ACitation Excerpt :The fine microstructure of the bulk alloy inherited the small grain size of the ball-milled powder owing to the fast heating rate and short holding time, which kinetically inhibited grain growth during SPS at high temperature. In addition, the oxide nanoparticles may also hinder grain-boundary migration, and thus also help to prevent grain coarsening at high temperature [20,29]. It should be noted that the nano-sized oxide particles were not detected by XRD because of their small sizes (Fig. 2b).
In-situ formed heterogeneous grain structure in spark-plasma-sintered CoCrFeMnNi high-entropy alloy overcomes the strength-ductility trade-off
2020, Materials Science and Engineering: AFabrication and characterization of nano-Y<inf>2</inf>O<inf>3</inf>, Al<inf>2</inf>O<inf>3</inf>, La<inf>2</inf>O<inf>3</inf> dispersed mechanically alloyed and liquid phase sintered W[sbnd]Ni for structural application
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