Unraveling solid–liquid phase transition and microstructural coarsening of semi-solid Al0.8Co0.5Cr1.5CuFeNi HEA with dual globules for thixoforming application

Semi-Solid Forging Process of Aluminum Alloy Connecting Rods for the Hydrogen Internal Combustion Engine

“…In addition, the grain size became larger, and its spheroidization degree deteriorated. Although a large number of the liquid phases was produced under the action of high ST and long DT, the liquid-phase distribution was not uniform, resulting in the large solid grains gradually formed by the coarse solid grains that contacted each other [35,57]. Namely, the merging and growth phenomenon of solid grains took place in this condition.…”

“…Subsequently, components with refined microstructures and superior performance can be fabricated through techniques such as extrusion, forging, rolling, or die casting [32,33]. The SSFM process can also operate through stages, including the first cooling or solidifying the semisolid blank into a solid blank and then reheating and forming the solid blank with suitable dimensions according to the production demands [34][35][36]. The SSFM process combines the advantages of liquid casting forming and solid plastic forming, as it has excellent flow mobility in the material and high physical properties in the product, which is regarded as one of the most potential green forming technologies [37][38][39].…”