| Title: | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
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| Authors: | ID Loncnar, Mojca (Author)
ID Mladenovič, Ana (Author)
ID Zupančič, Marija (Author)
ID Bukovec, Peter (Author) |
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| Files: |  PDF - Presentation file, download (3,74 MB)
MD5: F10AF98326AB98B12198703D7AAB15B7
 URL - Source URL, visit http://dx.doi.org/10.2298/JMMB150910018L
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | TIn the present study the differences in the mineralogical composition and microstructure of various types of EAF stainless steel (EAF S) slag with regard to the cooling treatment, the operation practice in an EAF (electric arc furnace) and environmental ageing reactions were evaluated. It was shown that the mineralogy of the investigated EAF S slags varied from one slag to another, depending on the quality of the produced stainless steel. The production process of the treated steel also has a strong influence on the mineralogy of the slags. The conditions during water cooling treatment were not sufficient to prevent the crystallization of primary mineral phases, which occurs predominantly in air-cooled EAF S slags, probably due to the high basicity of the investigated slags. However, the water cooling treatment of hot slag leads to the absence of γ-CaSiO 4 and the formation of secondary mineral phases predominantly calcite, portlandite, ettringite, calcium aluminate hydrate and calcium silicate hydrate. It has been shown that during the environmental ageing test (down-flow column test) secondary mineral phases were formed, which were the same as those formed during the water cooling treatment. |
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| Keywords: | electric arc furnace stainless steel slag, cooling path, microstructure, mineralogy |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publisher: | Technical Faculty and Copper Institute |
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| Year of publishing: | 2017 |
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| Number of pages: | str. 19-29 |
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| Numbering: | Vol. 53, iss. 1 |
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| PID: | 20.500.12556/DiRROS-20216  |
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| UDC: | 544.1:549:669.1 |
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| ISSN on article: | 1450-5339 |
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| DOI: | 10.2298/JMMB150910018L |
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| COBISS.SI-ID: | 1537329859 |
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| Note: |
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| Publication date in DiRROS: | 14.08.2024 |
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| Views: | 388 |
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| Downloads: | 223 |
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