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2018

Review on interaction between slag, steel and inclusions in secondary steelmaking

Holappa, L., Nurmi, S. & Jokilaakso, A., 2018, Proceedings of the 7th International Congress on Science and Technology of Steelmaking: The Challenge of Industry 4.0. AIM-Associazione Italiana di Metallurgia

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Open Access
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170 Downloads (Pure)
2017

Energy Efficiency and Sustainability in Steel Production

Holappa, L. E. K., 2017, Minerals, Metals and Materials Series. Wang, S., Free, ML., Alam, S., Zhang, M. & Taylor, PR. (eds.). Springer Int Publishing AG, p. 401-410 10 p. (Minerals Metals & Materials Series).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)
2016

Slag formation – Thermodynamic and kinetic aspects and mechanisms

Holappa, L. & Kaçar, Y., 2016, Advances in Molten Slags, Fluxes, and Salts: Proceedings of the 10th International Conference on Molten Slags, Fluxes and Salts 2016. Springer International Publishing AG, p. 1017-1024 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)
2015

Can we use slags to intensify deoxidation and to fine-tune inclusions in steels

Holappa, L., Nurmi, S. & Louhenkilpi, S., 2015, 6th International Congress on the Science and Technology of Steelmaking (ICS2015), Beijing, China, May 12-14, 2015. Wang USTB, X. (ed.). Chinese Society for Metals, p. 750-753

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Nanoparticles Behaviour and Addition in the Steel Casting

Wang, S., Kytönen, H., Louhenkilpi, S., Kekkonen, M. & Holappa, L., 2015, METEC and 2nd ESTAD 2015, Düsseldorf, Germany, 15 19 June, 2015. p. 10

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

On Basic Phenomena at Liquid Steel/TiC Particle Interfaces for Development of Functionally Graded Material

Kiviö, M., Holappa, L., Louhenkilpi, S., Nakamoto, M. & Tanaka, T., 2015, CTSSC-EMI Symposium; Tokyo, Japan; 3-4. September 2015. Shibata, ST. U. & Tanaka, TO. U. (eds.). Japani: Organizing committee, Chairman Tanaka, Toshihiro and Japan Iron and Steel Institute

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Temperature Prediction for Steel Continuous Casting

Laine, J., Holappa, L. & Louhenkilpi, S., 2015, 2nd AdMet Conference; Kiev, Ukraine; June 3-5, 2015. Stovpchenko, G. (ed.). p. 1-11

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2014

Dagens metallurgiska industri i Finland

Holappa, L., 2014, BERGSHISTORISKA UTSKOTTETS HÖSTMÖTE, 25-26.9.2014 Västra Nyland, Ekenäs. JERNKONTORET

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2013

Computer Simulation as a Tool for Steelmaker

Holappa, L. & Louhenkilpi, S., 2013, The 3rd International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining, Stockholm-Helsinki, May 20-23, 2013. Committee, CSSCR. (ed.). Helsinki, p. 1-20

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

On the Role of Ferroalloys in Steelmaking

Holappa, L. & Louhenkilpi, S., 2013, INFACON XIII, June 9-13, 2013, Kazakhstan, Almaty, June 9-13, 2013. P. Dipner, Karaganda, Kazakhstan, p. 1083-1090 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)

Opening of seminar and introduction

Holappa, L., 2013, International Seminar on Art and Technology of Pre-modern Ironmaking and Blacksmithing in Japan and Finland, Fiskars 24.-25. May, 2013. Holappa, L. & Kaila, J. (eds.). Helsinki, p. 1-2

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2012

Active Tundish Metallurgy

Kekkonen, M., Leuverink, D. & Holappa, L., 2012, SCANMET - 4th International Conference on Process Development in Iron and Steelmaking 10-13 June 2012, Luleå, Sweden. Mefos, S. (ed.). Luleå: Swerea Mefos, p. 407-416

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

ACTIVE TUNDISH SLAG

Scheller, P., Hagemann, R., Schröder, C., Holappa, L., Kekkonen, M. & Louhenkilpi, S., 2012, MOLTEN, Ninth International Conference on Molten Slags, Fluxes and Salts. May 27-30, 2012, Beijing, China. Chinese Society for Metals, T. (ed.). Beijing: Chinese Society for Metals, p. 14

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Fundamentals of Titanium Deoxidation

Holappa, L. & Kiviö, M., 2012, Proceedings of the 5th International Congress on the Science and Technology of Steelmaking: ICS 2012. Scheller, P. (ed.). Dresden: ENGICOM GmbH Germany, 9 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
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10 Downloads (Pure)

Improving energy efficiency in steel industry by process integration

Tuomaala, M., Holappa, L. & Ahtila, P., 2012, SCANMET - 4th International Conference on Process Development in Iron and Steelmaking 10-13 June 2012, Luleå, Sweden. p. 249-258

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

OPTIMIZATION OF INTENSIFIED SILICON DEOXIDATION

Nurmi, S., Louhenkilpi, S. & Holappa, L., 2012, 8th International Conference on Clean Steel; Budapest, 14-16th May 2012. Budapest, p. 8

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Simulation of Melting of Alloying Materials in Steel Ladle

Väyrynen, P., Holappa, L. & Louhenkilpi, S., 2012, SCANMET - 4th International Conference on Process Development in Iron and Steelmaking 10-13 June 2012, Luleå, Sweden. Mefos, S. (ed.). Luleå: Swerea Mefos, p. 579-588

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2011

Kuonareaktiot

Holappa, L., 2011, Kuonat prosessimetallurgiassa, Pohto Oulu, 12.-13.4.2011i. Pohto & Vuorimiesyhdistys, p. 26

Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

Toward Low Carbon Metallurgy in Iron and Steel Making

Holappa, L., 2011, The Guthrie Honorary Symposium, June 6-9, 2011. Montreal. Mihaiela, I. (ed.). McGill Metals Processing Centre, p. 248-254

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Toward Sustainability in Ferroalloys and Steel Production

Holappa, L., 2011, Fray International Symposium on Metals and Materials Processing in a Clean Environment; Cancun Mexico, Nov 27 - Dec 1, 2011. p. 203-217

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2010

On physico-chemical and technical limits in Clean Steel production

Holappa, L., 2010, Materials processing towards properties Seetharaman seminar 14-15 June, 2010. Sigtuna, Sweden. Aune, R. & Jönsson, P. (eds.). Jernkontoret, KTH

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Phenomena in thermal treatment of lateritic nickel ores up to 1300ºC

Bunjaku, A., Kekkonen, M. & Holappa, L., 2010, International Ferroalloys Congress, 6-9.6.2010, Helsinki. Vartiainen, A. (ed.). p. 641-652

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

8 Citations (Scopus)

Toward sustainability in ferroalloys production

Holappa, L., 2010, The Twelfth International Ferroalloys Congress (INFACON) June 6-9, 2010 Helsinki. Vartiainen, A. (ed.). Helsinki, p. 1-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

4 Citations (Scopus)
2009

A study of the gas response of a mixed, Fe2O3Fe2(MoO4)3, oxide to low concentrations of H2S in air

Kersen, Ü. & Holappa, L., 2009, 216th ECS Meeting, Vienna, Austria, October 4-9, 2009. p. abstract no. 1502

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Experimental study and modelling of viscosity of chromium-containing slags

Holappa, L. & Forsbacka, L., 2009, MOLTEN2009, Proc. VIII Int. Conf. Molten Slags, Fluxes and Salts, Santiago, Chile, 2009. p. 10

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

17 Citations (Scopus)
2008

Chromium in slags

Holappa, L. & Forsbacka, L., 2008, ISIJ, Tokio, Japani, 2008. p. 186-196

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Layers in the film originating from the casting powder between steel shell and the mould and associated phenomena in continuous casting of stainless steel

Hooli, P. & Holappa, L., 2008, ECCC 2008 6th European Conference on Continuous Casting, Riccione, Italy, 2008.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Modelling as a tool for improved production efficiency and product quality

Louhenkilpi, S., Laine, J., Holappa, L. & Vapalahti, S., 2008, SCANMET III, 3rd International Conference on Process Development in Iron and Steelmaking, Luleå, Sweden, 2008. p. 9-18

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Thermodynamic evaluation of inclusions formation and behaviour during casting and solidification in different steels

Nurmi, S., Louhenkilpi, S. & Holappa, L., 2008, SCANMET III, 3rd International Conference on Process Development in Iron and Steelmaking, June 2008, Luleå, Sweden, 2008. p. 517-528

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2007

Assesment of Viscosity of Slags in Ferrochromium Process

Nakamoto, M., Forsbacka, L. & Holappa, L., 2007, 11th International Ferroalloys Congress INFACON XI, New Delhi, India, February 18-21, 2007. p. 159-164

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)

Mechanism and kinetics of transformation of alumina inclusions in steel by calcium treatment

Holappa, L. & Lind, M., 2007, Advances in Metallurgical Processes and Materials, Dnipropetrovsk, Ukraina, May 27-30, 2007. p. 395-408

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Microstructure changes of chromite reduced with CO gas

Xiao, Y., Yang, Y., Holappa, L. & Boom, R., 2007, 11th International Ferroalloys Congress INFACON XI, New Delhi, India, February 18-21, 2007. p. 133-144

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

3 Citations (Scopus)

Role of slags in steel refining - Is it really understood and fully exploited?

Holappa, L., Louhenkilpi, S. & Nurmi, S., 2007, International ATS Steelmaking Conference, Paris, France. December 13-14, 2007. p. 1-10

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Thermodynamic evaluation for inclusion formation in high carbon and spring steels

Holappa, L., Nurmi, S., Louhenkilpi, S. & Antola, T., 2007, Seventh International Conference on Clean Steel, Balatonfüred, Hungary, June 4-6, 2007. p. 76-84

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2006

A new era for steel production

Holappa, L. & Wang, S., 2006, 2006 TMS Fall Extraction & Processing Meeting: Sohn Int'l Symposium, San Diego, California, August 27-31, 2006. F. Kongoli, R. G. R. (ed.). The Minerals, Metals & Materials Society, p. 455-469

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Constraints of Iron Production in Blast Furnace and with Alternative Methods

Holappa, L. & Kekkonen, M., 2006, The 4th International Congress on the Science and Technology of Ironmaking, Osaka, Japan, November 26-30, 2006. Tokyo: The Iron and Steel Institute of Japan, p. 279-282

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)

Tracking Chromium Behaviour in Submerged Arc Furnace for Ferrochrome Production

Xiao, Y., Yang, Y. & Holappa, L., 2006, 2006 TMS Fall Extraction & Processing Meeting: Sohn Int'l Symposium, San Diego, California, August 27-31, 2006. F. Kongoli, R. G. R. (ed.). The Minerals, Metals and Materials Society, p. 583-594

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2 Citations (Scopus)
2005

Inclusion Control for Clean Steel Production

Holappa, L. & Nurmi, S., 2005, XXV Simposio Nacional de Siderurgia, Morelia, Mexico, 12-14 Octubre, 2005.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Measuring and modeling of viscosity and surface properties in high temperature systems

Holappa, L., 2005, 150th ISIJ Meeting, Hiroshima, Japan, September 28.-30.2005.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

26 Citations (Scopus)

Process Integration - A Tool for Evaluation of different Process Alternatives for Iron and Steel Industry

Holappa, L. & Kekkonen, M., 2005, XXV Simposio nacional de Siderurgia, Morelia, Mexico.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Simulation of microstructure of as-cast steels in continuous casting

Holappa, L. & Louhenkilpi, S., 2005, 150th ISIJ Meeting, Hiroshima, Japan, September 28.-20. 2005.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

29 Citations (Scopus)

Steel Plant - A Chain of Unit Processes or an Integrate?

Holappa, L., Kekkonen, M. & Tuomaala, M., 2005, ICS 2005 - The 3rd International Congress on the Science and Technology of Steelmaking. Charlotte

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Volatile components in continuous casting mould powders

Holappa, L. & Shilov, A., 2005, 7th Nordic-Japan Symposium on Science and Technology of Process Metallurgy, Stockholm, Sweden, 15-16 September 2005.. Stockholm: JERNKONTORET, p. 6

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2004

Ferrite Nucleation on Ce-oxysulphide Inclusions in Low Alloyd Steels

Van der Eijk, C., Lassila, I., Grong, O., Klevan, O. S. & Holappa, L., 2004, Materials Science & Technology 2004.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

5 Citations (Scopus)

Glimmers of Research in Metallurgy

Holappa, L., 2004, Metal Separation Technologies III, Symposium in Honour of Professor Lauri E. Holappa of the Helsinki University of Technology, Copper Mountain, Coloraro, June 20-24, 2004. Aune, R. E. & Kekkonen, M. (eds.). Helsinki: Helsinki University of Technology, Laboratory of Metallurgy, p. 23-33

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Investigation on post combustion phenomena in BOF by in-situ gas analysis

Lassila, I., Valovirta, E. & Holappa, L., 2004, Scanmet II, 2nd International Conference on Process Development in Iron and Steelmaking, Luleå, Sweden, June 6-9 2004. Luleå: MEFOS, p. 225-242

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Investment evaluation of an integrated steel mill using multiple criteria

Kekkonen, M., Tuomaala, M., Holappa, L., Hurme, M. & Ahtila, P., 2004, Scanmet II, 2nd International Conference on Process Development in Iron and Steelmaking. Luleå: MEFOS, p. 417-426

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Mechanism and Kinetics of Transformation of Alumina Inclusions by Ca Treatment

Han, Z., Lind, M. & Holappa, L., 2004, Jernkontoret Conference on Non-metallic Inclusions Control and Continuous Improvement of Processes Based on Objective Measurement, Borlänge, Sweden, 5-6 May, 2004. JERNKONTORET, p. 8

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

21 Citations (Scopus)

On the Role of Slag in Oxygen Converter Process

Jalkanen, H. & Holappa, L., 2004, VII Int. Conf. on Molten Slags, Fluxes and Salts, Cape Town, South Africa, January 25-28, 2004. Johannesburg: The South African Institute of Mining and Metallurgy, p. 71-76

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Oxidation State of Titanium in CaO-SiO2-TiOx Slags at 1873K

Ariyo, C., Gonzales, P. & Holappa, L., 2004, VII Int. Conf. on Molten Slags, Fluxes and Salts, Cape Town, South Africa, January 25-28, 2004. Johannesburg: The South African Institute of Mining and Metallurgy, p. 125-128

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

6 Citations (Scopus)