A5032983418- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Advanced Welding Techniques Analysis
- Advanced ceramic materials synthesis
- High-Temperature Coating Behaviors
- Microstructure and mechanical properties
- Aluminum Alloy Microstructure Properties
- Iron and Steelmaking Processes
- Metal and Thin Film Mechanics
- Metal Extraction and Bioleaching
- Hybrid Renewable Energy Systems
- High Entropy Alloys Studies
- Metallurgical Processes and Thermodynamics
- Welding Techniques and Residual Stresses
- Hydrogen Storage and Materials
- Metal Forming Simulation Techniques
- Metallurgy and Material Forming
- Nuclear Materials and Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Intermetallics and Advanced Alloy Properties
- MXene and MAX Phase Materials
- Titanium Alloys Microstructure and Properties
- Metal Alloys Wear and Properties
- Additive Manufacturing Materials and Processes
- Corrosion Behavior and Inhibition
Innovation Engineering (Italy)
2015-2024
University of Salento
2015-2024
University of Oulu
2024
Massachusetts Institute of Technology
2000-2008
Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
2005
Ospedali Riuniti di Ancona
2000-2002
University of Palermo
1988
The transition to more environmentally friendly steel production methods has intensified research into hydrogen-based direct reduction (HyDR) of iron oxide pellets. aim this study is systematically investigate the kinetics process, evolution porosity and resulting microstructural changes on behavior high-quality pellets during HyDR ore at different temperatures. A modified mathematical model developed based shrinkage kernel model, taking account both mass heat transport in a hydrogen...
High grade pellets with basicity index close to 0.5 were directly reduced in pure hydrogen atmosphere. The reduction experiments performed the temperature range 800–1000 °C at pressure of 8 bar. internal structure was analysed through micro tomography observations unreduced and conditions. After reduction, showed a variation porosity up more than 15% remarkable change pore dimensions aspect. Given pores aspect variations, tortuosity strongly varied. This is believed have large influence on...
The present study deals with the analyses of direct reduction kinetics during hydrogen industrial iron oxide pellets. Various types pellets different percentage total content and metal oxides are examined. They reduced at temperatures pressure (700–1100 °C 1–6 bar) in atmosphere. behavior is described terms time to reduction, rate constant. All obtained results analyzed through employment a commercial multiobjective optimization tool precisely define weight that each single parameter has on...
In this paper, HSC software is used to estimate the effects of composition and processing conditions on reduction behavior iron oxide pellets, i.e., hematite (Fe2O3), magnetite (Fe3O4), wustite (FeO), pure (Fe), carbide (Fe3C), in a wide temperature range from room (RT) 1000°C presence H2 CO mixtures. The reducibility ores, particular Fe2O3, Fe3O4, FeO, Fe discussed. choice reducing agents explained, with proving be more effective agent at high temperatures thermodynamic point view. However,...
This paper presents a comprehensive study on the production and reduction of high-quality iron ore pellets characterized by basicity index nearing 0.5 diameters ranging from 1 to 2 cm. The process was carried out in hydrogen atmosphere at temperatures spanning 800–1000 °C pressure 8 bar. Initial findings revealed substantial variations pellet density compressive strength, attributed their mean dimensions. To delve into microstructural transformations occurring during reduction, meticulous...