A5087884243- Metallurgical Processes and Thermodynamics
- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Metal Extraction and Bioleaching
- Iron and Steelmaking Processes
- Metallurgy and Material Forming
- Extraction and Separation Processes
- Welding Techniques and Residual Stresses
- Hydrogen embrittlement and corrosion behaviors in metals
- Aluminum Alloy Microstructure Properties
- Corrosion Behavior and Inhibition
- Recycling and utilization of industrial and municipal waste in materials production
- High-Temperature Coating Behaviors
- Microstructure and mechanical properties
- Minerals Flotation and Separation Techniques
- High-Velocity Impact and Material Behavior
- Cellular and Composite Structures
- Concrete and Cement Materials Research
- High Temperature Alloys and Creep
- Advanced Surface Polishing Techniques
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Recycling and Waste Management Techniques
- Metal Forming Simulation Techniques
- Advanced Welding Techniques Analysis
Politecnico di Milano
2016-2025
John Wiley & Sons (Germany)
2022
The amount of CO 2 emissions, water and electricity consumption, soil exploitation the main steel production routes (integrated cycle, scrap recycling, direct reduction) are analyzed applying three possible future scenarios: use carbon capture storage (CCS); green hydrogen in substitution natural gas; biomethane. Using actual process data theoretical assumptions, emissions consumptions whole cycle (from iron ore extraction to final product) computed, taking into account also auxiliary...
In the last few decades steelmaking industry has been focusing on lightweight steel development and Fe–Mn–Al–C system put under spotlight. fact, this quaternary alloy shown to be able lower common density by more than 20 wt.%. addition, these steels may also suitable for cryogenic applications, corrosion high-temperature oxidation resistance wear resistance. Austenite plays an important role in because of its possible evolutions. Each configuration derived from γ reaction own specific...
More than 100 million tons of red mud were produced annually in the world over short time range from 2011 to 2018. Red represents one metallurgical by-products more difficult dispose due high alkalinity (pH 10–13) and storage techniques issues. Up now, economically viable commercial processes for recovery reuse these waste not available. Due content iron oxide (30–60% wt.) ranks as a potential raw material production through direct route. In this work, novel process at laboratory scale...
The evolution of microstructures, textures, and residual stresses scale cold-drawn (CD) 18%Cr ferritic stainless steels (FSS) round bars under isothermal static recrystallization annealing are investigated. As for determination the new grains' formation, size, growth, orientation, as well nucleation grains, alongside revealing fractions studied by a mixed experimental theoretical work. kinetics calculated according to Johnson-Mehl-Avrami-Kolmogorov theory. Electron backscatter diffraction...
This paper is focused on the description of integrated route for steel production. The main plants involved in such a have been treated and process steps described: sintering iron ores, coal treatment to obtain coke, pig production by blast furnace its conversion basic oxygen furnace. During these processes, pollution source pointed out. Finally, synthetic presentation used reduction ores natural gas has performed.
ABSTRACT This study presents a successful solution implemented at steelmaking plant of the company United Steel in Kuwait. The primary challenge addressed this involves generation excessive dololime fines (particles less than 10 mm) and insufficient lime between 5 15 plant. size disparity operational challenges within process. An innovative strategy is to overcome optimize material utilization. replacing injection with electric arc furnace. original practice employs combination use lumps....
The objective of this study is the preliminary investigation feasibility using a low-temperature molten hydroxide direct carbon fuel cell as an additional energy source for steel production by electric arc furnace. For purpose, four carbonaceous materials related to industry (electrographite, coke, torrefied biochar and hydrochar) were selected characterized predict their electrical behavior before actual introduction fuels. Special attention was paid both morphological effect (bulk/pellet...
The consequences on the Italian steel sector following conversion of sole integrated plant and establishment a direct reduction/electric arc furnace (DR/EAF) grid in period 2022–2050 were analyzed. Imported natural gas (pathway 0), green hydrogen 1) biomethane 2) studied as possible reducing gases to be exploited DR introduced methane substitute EAFs. results showed that environmental targets for sustainable development scenario could achieved both 2030 2050. In particular, main reduction...
The demand of green and recycling technology has become, nowadays, a crucial issue for the scientific community. In this work, preliminary approach safe reliable "black slag" use is discussed on chemical microstructural characterization basis. Different EAF slag types, coming from several steelmaking plants, are analyzed. aimed to explain diffusion, dissolution releasing mechanisms polluting elements that affect black slags avoid their recycle as alternative filler materials. Furthermore,...
Super Duplex Stainless Steels (SDSSs) are composed of α-ferrite and γ-austenite grains, the simultaneous presence which forms an optimal microstructure to achieve best combination mechanical corrosion resistance properties. Moreover, international quality standards strict about phase fraction ratio. The purpose this work is achievement a better description ratio evolution taking place during annealing at 1080 °C in super duplex stainless steels F53–S32750 F55–S32760. experimental results...