About this Research Topic
Based on the development of grain refinement of metallic materials, the united scientific fundamentals and engineering practice will be summarized. The similarities and discrepancies of the current grain refining mechanism/theories of metallic materials will be clarified. The intrinsic physical-chemical requirements of effective grain refiners for cast metallic products will be revealed. The solid deformation-induced grain refinement will be reviewed. Finally, the engineering application of grain refinement will be explored in the metallic materials. It would enrich theoretical development of fine-grained structural tunning of metallic components, and provide fundaments for engineering applications as well.
This Research Topic will focus on frontiers in theories, modelling, and application associated with grain refinement of metallic materials (such as Al, Mg, Fe, Ti, Cu, Sn, Pb, Zn and medium/high entropy alloys). The article collection is intended to address the latest advances in fundamental innovation and engineering application. Original Research, Review, and Mini Review articles are welcome for submission, but having special themes of interests as follows:
• Dynamic nucleation of grain refinement, i.e. ultrasonic, electromagnetic, pulse current, and shearing treatments of metal melts.
• Melt inoculation of grain refinement, i.e. predicting, designing and producing new grain refiners (or master alloys) and related processing routes.
• Deformation processing of grain refinement, i.e. equal-channel angular pressing (ECAP), high pressure torsion (HPT), accumulative roll bonding (ARB), rotary swaging, twist extrusion, and etc.
• Technological innovation and corresponding application for refining engineering alloys.
• Characterization methods for revealing experimental results and theoretical mechanisms.
• Scientific and engineering development of grain refinement in various metallic materials.
Keywords: Grain refinement, Metallic materials, Fine-grained microstructures, Microstructural design, Solidification, Plastic deformation, Mechanical properties, Engineering application
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.