- Metallic Materials 17
- Materials Science, general 11
- Tribology, Corrosion and Coatings 10
- Mineral Resources 8
- Materials Engineering 7
- Characterization and Evaluation of Materials 5
- Artificial Intelligence 4
- Computational Intelligence 4
- Ceramics, Glass, Composites, Natural Materials 2
- Control, Robotics, Mechatronics 2
- Data Structures and Information Theory 2
- Electronics and Microelectronics, Instrumentation 2
- Energy Storage 2
- Mathematical Logic and Foundations 2
- Optical and Electronic Materials 2
- Power Electronics, Electrical Machines and Networks 2
- Renewable and Green Energy 2
- Solid Mechanics 2
- Solid State Physics 2
- Surfaces and Interfaces, Thin Films 2