主题词：Metallurgical Processes and Thermodynamics; Human auditory perception and evaluation; Extraction and Separation Processes; Aluminum Alloy Microstructure Properties; Metal Extraction and Bioleaching; Aluminum Alloys Composites Properties; Diverse Scientific and Economic Studies; Educational Robotics and Engineering; Advanced materials and composites; Iron and Steelmaking Processes; Metallurgy and Material Forming; Microstructure and mechanical properties; Microstructure and Mechanical Properties of Steels; Additive Manufacturing Materials and Processes; Intermetallics and Advanced Alloy Properties; Biotechnology and Related Fields; Metal and Thin Film Mechanics; Additive Manufacturing and 3D Printing Technologies; Metal Alloys Wear and Properties; Minerals Flotation and Separation Techniques; Bauxite Residue and Utilization; High Entropy Alloys Studies; Academic Writing and Publishing; High-Temperature Coating Behaviors; Recycling and Waste Management Techniques