Mathematics and Materials Science for Steel Production and Manufacturing

Risultati finali

PhD thesis on Sensitisation during stainless steel production

PhD thesis

Chemical composition and material properties of novel material

Definition of chemical composition and determination of material properties of novel material

PhD thesis on Modelling martensite formation and austenite retention

PhD thesis

Publication on modelling direct quenched and interrupted quenched martensite-austenite
Quality analysis of HF induction welds for tubes

Quality analysis by physical simulation of HF induction welds for tubes

Publication on the modelling of sensitization

Software for solving the optimal control problem and the fluid-structure interaction
Software tool, Optimal heating strategies

Software tool for the computation of optimal heating strategies

Recruitment completed
Simulation for a gas-stirred ladle

Validated simulation model for a gas-stirred ladle and for the alloying of selected elements

Software tool, Optimization of HF-welding

Software tool for the computation of optimal control parameters for HF-welding

Computation of optimal gas inflow
Software tool, Optimization of induction hardening

Software tool for computation of optimal process parameters

Combined simulation for removal of inclusions during ladle treatment

Combined simulation model for the removal of alloying element based inclusions during ladle treatment

Software tool, Simulation of HF-welding

Software tool for the coupled simulation of the HF-welding process

Software tool, Simulation of flame cutting

Software tool for the simulation of the flame cutting process

Simulation tool for induction hardening

Simulation tool for multifrequency induction hardening

Website launched
Advertisement of vacancies
Public outreach activities

Participation of all ESRs in at least one public outreach activity

Scientific conferences

Presentation of all ESRs at a scientific conference

Pubblicazioni

Effect of niobium and phase transformation temperature on the microstructure and texture of a novel 0.40% C thermomechanically processed steel

Autori: Vahid Javaheri, Nasseh Khodaie, Antti Kaijalainen, David Porter
Pubblicato in: Materials Characterization, Numero 142, 2018, Pagina/e 295-308, ISSN 1044-5803
Editore: Elsevier BV
DOI: 10.1016/j.matchar.2018.05.056

Slurry erosion of steel – Review of tests, mechanisms and materials

Autori: Vahid Javaheri, David Porter, Veli-Tapani Kuokkala
Pubblicato in: Wear, Numero 408-409, 2018, Pagina/e 248-273, ISSN 0043-1648
Editore: Elsevier BV
DOI: 10.1016/j.wear.2018.05.010

Computational Design of a Novel Medium-Carbon, Low-Alloy Steel Microalloyed with Niobium

Autori: Vahid Javaheri, Tuomo Nyyssönen, Bjørnar Grande, David Porter
Pubblicato in: Journal of Materials Engineering and Performance, Numero 27/6, 2018, Pagina/e 2978-2992, ISSN 1059-9495
Editore: ASM International
DOI: 10.1007/s11665-018-3376-9

Effects of cryogenic treatment on microstructure and wear resistance of Fe-0.35C-6.3Cr martensitic steel

Autori: Masoud Sehri, Hamid Ghayour, Kamran Amini, Masaab Naseri, Habib Rastegari, Vahid Javaeri
Pubblicato in: Acta Metallurgica Slovaca, Numero 24/2, 2018, Pagina/e 134, ISSN 1335-1532
Editore: Technicka Univerzita Kosice
DOI: 10.12776/ams.v24i2.1037

Revisiting the single-phase flow model for liquid steel ladle stirred by gas

Autori: Najib Alia, Volker John, Seppo Ollila
Pubblicato in: Applied Mathematical Modelling, Numero 67, 2019, Pagina/e 549-556, ISSN 0307-904X
Editore: Elsevier BV
DOI: 10.1016/j.apm.2018.11.005

Influence of Microsegregation on the Onset of the Martensitic Transformation

Autori: Shashank Ramesh Babu, Dmitry Ivanov, David Porter
Pubblicato in: ISIJ International, Numero 59/1, 2019, Pagina/e 169-175, ISSN 0915-1559
Editore: Nippon Tekko Kyokai/Iron and Steel Institute of Japan
DOI: 10.2355/isijinternational.isijint-2018-424

Physical and CFD Modeling of the Effect of Top Layer Properties on the Formation of Open‐Eye in Gas‐Stirred Ladles With Single and Dual‐Plugs

Autori: Eshwar Kumar Ramasetti, Ville‐Valtteri Visuri, Petri Sulasalmi, Tuomas Palovaara, Avishek Kumar Gupta, Timo Fabritius
Pubblicato in: steel research international, Numero 90/8, 2019, Pagina/e 1900088, ISSN 1611-3683
Editore: Verlag Stahleisen GmbH
DOI: 10.1002/srin.201900088

Numerical Modeling of Open-Eye Formation and Mixing Time in Argon Stirred Industrial Ladle

Autori: Eshwar Kumar Ramasetti, Ville-Valtteri Visuri, Petri Sulasalmi, Timo Fabritius, Tommi Saatio, Mingming Li, Lei Shao
Pubblicato in: Metals, Numero 9/8, 2019, Pagina/e 829, ISSN 2075-4701
Editore: MDPI
DOI: 10.3390/met9080829

Modeling of the Effect of the Gas Flow Rate on the Fluid Flow and Open‐Eye Formation in a Water Model of a Steelmaking Ladle

Autori: Eshwar Kumar Ramasetti, Ville‐Valtteri Visuri, Petri Sulasalmi, Riku Mattila, Timo Fabritius
Pubblicato in: steel research international, Numero 90/2, 2018, Pagina/e 1800365, ISSN 1611-3683
Editore: Verlag Stahleisen GmbH
DOI: 10.1002/srin.201800365

Insight to the Microstructure Characterization of a HP Austenitic Heat Resistant Steel after Long-term Service Exposure

Autori: Mahyar Mohammadnejad, Vahid Javaheri, Morteza Shamanian, Shahram Rizaneh, Jerzy A Szpunar
Pubblicato in: Acta Metallurgica Slovaca, Numero 24/4, 2018, Pagina/e 296, ISSN 1335-1532
Editore: Technicka Univerzita Kosice
DOI: 10.12776/ams.v24i4.1160

Numerical Modelling of the Influence of Argon Flow Rate and Slag Layer Height on Open-Eye Formation in a 150 Ton Steelmaking Ladle

Autori: Ramasetti, Visuri, Sulasalmi, Fabritius, Savolainen, Li
Pubblicato in: Metals, Numero 9/10, 2019, Pagina/e 1048, ISSN 2075-4701
Editore: MDPI
DOI: 10.3390/met9101048

Quantitative Prediction of Sensitization in Austenitic Stainless Steel Accounting for Multicomponent Thermodynamic and Mass Balance Effects

Autori: Satish Kolli, Thomas Ohligschläger, David Porter
Pubblicato in: ISIJ International, Numero 59/7, 2019, Pagina/e 1330-1336, ISSN 0915-1559
Editore: Nippon Tekko Kyokai/Iron and Steel Institute of Japan
DOI: 10.2355/isijinternational.isijint-2018-715

Sensitization and Self-healing in Austenitic Stainless Steel: Quantitative Prediction Considering Carbide Nucleation and Growth

Autori: Satish Kolli, Thomas Ohligschläger, Jukka Kömi, David Porter
Pubblicato in: ISIJ International, 2019, ISSN 0915-1559
Editore: Nippon Tekko Kyokai/Iron and Steel Institute of Japan
DOI: 10.2355/isijinternational.isijint-2019-264

Study of Intergranular Corrosion in Austenitic Stainless Steels Using Electrochemical Impedance Spectroscopy

Autori: Satish Kolli and Adriana Ferancova and David Porter and Jukka Kömi
Pubblicato in: International Journal of Materials and Metallurgical Engineering, Numero 4, 2019, Pagina/e 165--168, ISSN 1307-6892
Editore: World Academy of Science, Engineering and Technology

Insight into the induction hardening behavior of a new 0.40% C microalloyed steel: Effects of initial microstructure and thermal cycles

Autori: Vahid Javaheri, Satish Kolli, Bjørnar Grande, David Porter
Pubblicato in: Materials Characterization, Numero 149, 2019, Pagina/e 165-183, ISSN 1044-5803
Editore: Elsevier BV
DOI: 10.1016/j.matchar.2019.01.029

Comparison between experimental data and a cellular automata simulation of martensite formation during cooling

Autori: A Kaijalainen, O Seppälä, V Javaheri, A Pohjonen, D Porter, J Kömi
Pubblicato in: Journal of Physics: Conference Series, Numero 1270, 2019, Pagina/e 012035, ISSN 1742-6588
Editore: Institute of Physics
DOI: 10.1088/1742-6596/1270/1/012035

The Effect of Hot-Mounting on the Microstructure of an As-Quenched Auto-Tempered Low-Carbon Martensitic Steel

Autori: Shashank Ramesh Babu, Matias Jaskari, Antti Järvenpää, David Porter
Pubblicato in: Metals, Numero 9/5, 2019, Pagina/e 550, ISSN 2075-4701
Editore: MPDI Publications
DOI: 10.3390/met9050550

Vibrations of a laboratory-scale gas-stirred ladle with two eccentric nozzles and multiple sensors

Autori: Najib Alia, Mika Pylvänäinen, Ville-Valtteri Visuri, Volker John, Seppo Ollila
Pubblicato in: Journal of Iron and Steel Research International, Numero 26/10, 2019, Pagina/e 1031-1040, ISSN 1006-706X
Editore: Ganglie Yanjiu Xuebao
DOI: 10.1007/s42243-019-00241-x

Physically based modeling, characterization and design of an induction hardening process for a new slurry pipeline steel

Autori: Vahid Javaheri, Aarne Pohjonen, John Inge Asperheim, Dmitry Ivanov, David Porter
Pubblicato in: Materials & Design, Numero 182, 2019, Pagina/e 108047, ISSN 0264-1275
Editore: Elsevier BV
DOI: 10.1016/j.matdes.2019.108047

ParMooN—A modernized program package based on mapped finite elements

Autori: Ulrich Wilbrandt, Clemens Bartsch, Naveed Ahmed, Najib Alia, Felix Anker, Laura Blank, Alfonso Caiazzo, Sashikumaar Ganesan, Swetlana Giere, Gunar Matthies, Raviteja Meesala, Abdus Shamim, Jagannath Venkatesan, Volker John
Pubblicato in: Computers & Mathematics with Applications, Numero 74/1, 2017, Pagina/e 74-88, ISSN 0898-1221
Editore: Pergamon Press Ltd.
DOI: 10.1016/j.camwa.2016.12.020

Weak entropy solutions to a model in induction hardening, existence and weak-strong uniqueness

Autori: Hömberg, Dietmar; Lasarzik, Robert
Pubblicato in: Crossref, Numero 1, 2021, ISSN 0218-2025
Editore: World Scientific Publishing Co
DOI: 10.1142/s021820252150041x

Modelling and simulation of flame cutting for steel plates with solid phases and melting

Autori: Manuel J. Arenas; Dietmar Hömberg; Dietmar Hömberg; Robert Lasarzik; Pertti Mikkonen; Thomas Petzold
Pubblicato in: Journal of Mathematics in Industry, Numero 4, 2020, ISSN 2190-5983
Editore: Springer Verlag
DOI: 10.1186/s13362-020-00086-0

A CFD and Experimental Investigation of Slag Eye in Gas Stirred Ladle

Autori: Eshwar Kumar Ramasetti, Ville-Valtteri Visuri, Petri Sulasalmi, Timo Fabritius
Pubblicato in: Proceedings of the 5th International Conference of Fluid Flow, Heat and Mass Transfer (FFHMT'18), 2018, Pagina/e 148-1 -- 148-10, ISBN 978-1-927877-44-9
Editore: Avestia Publishing
DOI: 10.11159/ffhmt18.148

On the Role of Nb on the Texture and Microstructure of a Novel As-Rolled Medium Carbon Wear Resistant Slurry Pipeline Steel

Autori: Vahid Javaheri, Tun Tun Nyo, David Porter
Pubblicato in: 9th International Symposium on High-Temperature Metallurgical Processing, 2018, Pagina/e 365-379, ISBN 978-3-319-72138-5
Editore: Springer International Publishing
DOI: 10.1007/978-3-319-72138-5_37

Experimental and Numerical Investigation of Slag Thickness Effect on the Formation of Slag Eye in a Water Model of a Steel Making Ladle

Autori: E.K. Ramasetti, V.-V. Visuri, P. Sulasalmi and T. Fabritius
Pubblicato in: Proceedings of the 21st Australasian Fluid Mechanics Conference, 2018, ISBN 978-0-646-59784-3
Editore: Australasian Fluid Mechanics Society

Numerical study of multiphase flows in a ladle for different closure models

Autori: Ramasetti, Eshwar Kumar and Visuri, Ville-Valtteri and Sulasalmi, Petri and Kärnä, Aki and Fabritius, Timo
Pubblicato in: Proceedings of the 11th Pacific Symposium on Flow Visualization and Image Processing, 2017
Editore: Pacific Symposium on Flow Visualization and Image Processing

Continuous cooling sensitization and its evaluation in austenitic stainless steel EN 1.4310

Autori: Kolli, S. (S.K.); Ohligschläger, T. (T.); Porter, D A
Pubblicato in: 9th European Stainless Steel Conference – Science & Market AND 5th European Duplex Stainless Steel Conference & Exhibition, Numero 1, 2017, Pagina/e 1-6
Editore: Associazione Italiana di Metallurgia

Development of crystallographic texture under plane and shear strain in ultrahigh-strength strip steels

Autori: A. Kaijalainen, V. Javaheri, D. Lindell, D.A. Porter
Pubblicato in: IOP Conference Series: Materials Science and Engineering, Numero 375, 2018, Pagina/e 012026, ISSN 1757-899X
Editore: IOP Publishing
DOI: 10.1088/1757-899X/375/1/012026

Risultati finali

Pubblicazioni

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