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Casting

We focus on ingot casting, continuous casting, remelting and solidification in general. The field is like the rocket science of metallurgy, the cross-disciplinary field where physics and chemistry interplay at high temperatures where fluid mechanics, heat transport, thermodynamics, kinetics, process metallurgy and physical metallurgy intersect.

Steel "strands" being continuously cast. The glowing samples are solid on the outside and molten on the inside.
Steel being continuously cast.

In our unit, we have an advanced group working with numerical modelling, long expertise with experimental studies, measurement techniques and plant trials. By operating on the scale from abstract theory to application with an overview of the process and its fundamental subsystems, we cover a wide range of Technology Readiness Levels and have a track-record of innovation and developemnt of ideas into industrial applications. Through external collaborations, we seek complementary infrastructure for experimental characterisation, pilot scale facilities and industrial problems with a fundamental cause.

Macrogrph of the grain structure of pure aluminium after casting.  The resulting structure is a classic example of the phenomena that occur during solidification of molten metal.
Grain structure of a cast ingot of pure aluminium. Understanding such structures is an important part of the education and research in the area of casting at KTH.

The future holds many openings to expand the use computational fluid dynamics coupled with chemical reactions during casting. Many high temperature material data is still lacking. This is, in part due to the difficulty of such measurements and/or the very high experimental costs. Here collaborations to use available equipment and shared infrastructure within the scientific community opens up these challenges to be tackled and solved. The pace of alloy development also increases the demand on process flexibility and rapid prototyping to find a usable operating window. Lab scale and bench scale tests that can be up-scaled to pilot or full scale are of high relevance to meet these demands. Furthermore, the digitalisation within the industry is now becoming a reality. Sensor technology, measurement techniques and quality of data needs to be standardised to reach the full potential of this revolution. That is our passion at KTH.

Contact

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Belongs to: Materials Science and Engineering
Last changed: Apr 25, 2024
Casting
Optimization of the ingot casting process by minimising macrosegregation and porosity
Avoiding cracking during casting of a duplex stainless steel
Development and Application of an Operator Vision Assistance System for Enhanced Direct Process Control in Foundries
HIYIELD - Highly Efficient Technologies for Increased Yields in Steelmaking Processes and Reduced Environmental Impact
Clean metallurgy
FerroSilva - fossil-free virgin steel from iron ore and biogenic reduction gas
Optimisation of the oxygen use in EAF steelmaking by direct process monitoring of the chemical melt reactions
Computational fluid dynamics
Variable nozzle height in AOD converter, stage 2
Control of nitrogen content in the production of stainless steel
Raw Ideas for Materials Projects
Energy and furnace technology
A multiscale and multifunction Cascade Catalytic Fast Pyrolysis of lignocellulose for the production of gasoline- diesel range fuel for transportation section
Sustainable technology for the staged recovery of an agricultural water from high moisture fermentation products
Recycling plastic wastes to valuable chemicals of monoaromatics and metals through catalytic-pyrolysis
Optimized biofuel-production via two-step upgrading via catalytic pyrolysis and hydrotreatment
Electrified-Catalytic Reforming using 3D printed catalysts for Biomethane production from biomass pyrolysis
Gradient control in thin film solar cells
Flexible Ladle Preheating Procedures using Plasma Heated Refractory
Control of Metallurgical Processes with indirect measurements and Machine Learning
Optimization and Performance Improving in Metal Industry by Digital Technologies
BLast furnace stack density Estimation through on-line Muons ABsorption measurements
INEVITABLE
High-temperature experimental kinetics
Powder metallurgy
Digitalisation of Atomisation
Direct reduction of alloy metals
Advanced design, monitoring , development and validation of novel HIgh PERformance MATerials and components