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Microstructural Progression of Shear-Induced Mixing in a CuNi Alloy
Shear deformation has been highlighted in multiple research efforts for its ability to impart mechanical properties improvements and unique microstructures. When used to process and densify powdered material, these shear-based consolidation techniques are commonly referred to as friction consolidation (FC). In this paper, we have examined the microstructural evolution from compacted Cu and Ni powders to a consolidated Cu0.5Ni0.5 alloy. We have shown various stages of porosity reduction and preferential deformation being accommodated by the more ductile material early in the process, leading to formation of a tortuous microstructural zone. Porosity reduction was extensive, decreasing from ~65% in the unprocessed powder to ~1% in the fully consolidated alloy. The final consolidated alloy showed roughly a 2X hardness improvement over the unalloyed, compacted material. Unique aspects of this work include demonstration of the ability to use FC processing to produce a submicron and equiaxed grain size in samples within a 0.5 to 2 minute processing time.
The role of intrinsic stacking fault in facilitating the pressure-induced phase transition in CoCrFeMnNi high entropy alloys
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Cryogenic-temperature-induced phase transformation in a CuZr-based bulk metallic glass composite under tensile stress
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In-situ evidence for impurity-induced formation of eutectic colonies in an interdendritic liquid
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Enhanced electric-field-induced strains in (K,Na)NbO3 piezoelectrics from heterogeneous structures
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The thermodynamics of gas absorption and guest-induced flexibility in zeolite Y
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Differential cross section measurements of the 6.13 MeV gamma ray from proton-induced reaction of fluorine
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Shock-induced reactions in metal nitride – Boron nanostructured composites
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Induced seismicity in the Changning salt mining zone, China, could be driven by the pore-pressure diffusion
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Microstructural engineering of high-power redox flow battery electrodes via non-solvent induced phase separation
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HOXA9-induced chemerin signals through CMKLR1/AMPK/TXNIP/NLRP3 pathway to induce pyroptosis of trophoblasts and aggravate preeclampsia
Up-regulated chemerin correlates with the risk and the severity of preeclampsia. In this study, we examined impacts and underlying mechanisms by which chemerin regulates pyroptosis and trophoblast inflammation.