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Study of Si-domains...
Study of Si-domains enabling local reduction of laser-melted iron ore for iron-making during 3D-printing
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- Kaplan, Alexander F.H. (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Fedina, Tatiana (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling
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- Brückner, Frank (författare)
- Luleå tekniska universitet,Produkt- och produktionsutveckling,Fraunhofer IWS, Winterbergstrasse 28, 01277, Dresden, Germany
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(creator_code:org_t)
- Elsevier, 2022
- 2022
- Engelska.
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Ingår i: 12th CIRP Conference on Photonic Technologies [LANE 2022]. - : Elsevier. ; , s. 377-380
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- One main issue for global warming are CO2-emissions from iron ore reduction during steelmaking. This study presents a new approach, to merge iron ore powder with a suitable reducing agent, here silicon powder. By laser melting of the powders, some of the generated grains are composed of homogeneous slag, O-Fe-Si about 60-30-10 at.-%. However, other grains indeed contain small domains with high iron content, 90-100 at.-%. Manifold appearances of the iron particles were identified, surrounded preferably by slag but also by accompanying domains of high Si-content. These appearances indicate how ore reduction took place, like spherical growth or irregular drop conglomeration. If the iron particles can be extracted as drops, direct 3D-printing from ore can be enabled, including tailored alloying of iron to steel. Such short value chain would not only be efficient but also aims to cause solely environment-friendly by-products, for example SiO2 instead of CO2.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
Nyckelord
- iron ore powder
- reduction
- AM
- environment-friendly
- green economy
- Produktionsutveckling
- Manufacturing Systems Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)