Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment
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 path, the operation practice in an EAF (electric arc furnace) and environmental ageing reactions were evaluated. It was s...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Belgrade, Technical Faculty, Bor
2017-01-01
|
| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600018L.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832572656935763968 |
|---|---|
| author | Loncnar M. Mladenovič A. Zupančič M. Bukovec P. |
| author_facet | Loncnar M. Mladenovič A. Zupančič M. Bukovec P. |
| author_sort | Loncnar M. |
| collection | DOAJ |
| description | 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 path, 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 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 of hot slag
leads to the absence of γ-CaSiO4 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 of
slags. |
| format | Article |
| id | doaj-art-f1b473199ebf4158a52e9b63c6f34828 |
| institution | Kabale University |
| issn | 1450-5339 2217-7175 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-f1b473199ebf4158a52e9b63c6f348282025-02-02T08:58:45ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392217-71752017-01-01531192910.2298/JMMB150910018L1450-53391600018LComparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatmentLoncnar M.0Mladenovič A.1Zupančič M.2Bukovec P.3Acroni, d.o.o., Jesenice, SloveniaSlovenian National Building and Civil Engineering Institute, Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Chemistry and Chemical Technology, Ljubljana, SloveniaUniversity of Ljubljana, Faculty of Chemistry and Chemical Technology, Ljubljana, SloveniaTIn 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 path, 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 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 of hot slag leads to the absence of γ-CaSiO4 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 of slags.http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600018L.pdfElectric arc furnace stainless steel slagCooling pathMicrostructureMineralogy |
| spellingShingle | Loncnar M. Mladenovič A. Zupančič M. Bukovec P. Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment Journal of Mining and Metallurgy. Section B: Metallurgy Electric arc furnace stainless steel slag Cooling path Microstructure Mineralogy |
| title | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
| title_full | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
| title_fullStr | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
| title_full_unstemmed | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
| title_short | Comparison of the mineralogy and microstructure of EAF stainless steel slags with reference to the cooling treatment |
| title_sort | comparison of the mineralogy and microstructure of eaf stainless steel slags with reference to the cooling treatment |
| topic | Electric arc furnace stainless steel slag Cooling path Microstructure Mineralogy |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2017/1450-53391600018L.pdf |
| work_keys_str_mv | AT loncnarm comparisonofthemineralogyandmicrostructureofeafstainlesssteelslagswithreferencetothecoolingtreatment AT mladenovica comparisonofthemineralogyandmicrostructureofeafstainlesssteelslagswithreferencetothecoolingtreatment AT zupancicm comparisonofthemineralogyandmicrostructureofeafstainlesssteelslagswithreferencetothecoolingtreatment AT bukovecp comparisonofthemineralogyandmicrostructureofeafstainlesssteelslagswithreferencetothecoolingtreatment |