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Direct chromium all...
Direct chromium alloying by chromite ore with the presence of metallic iron
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- Hu, Xianfeng (författare)
- KTH,Royal Institute of Technology (KTH), Stockholm
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- Wang, H. (författare)
- Division of Materials Process Science, Royal Institute of Technology (KTH), Royal Institute of Technology
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- Teng, Lidong (författare)
- KTH,Materialens processvetenskap,Department of Materials Science and Engineering, Royal Institute of Technology, Division of Materials Process Science, Royal Institute of Technology (KTH)
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- Seetharaman, Seshadri (författare)
- KTH,Materialens processvetenskap,Division of Materials Process Science, Department of Materials Science and Engineering, Royal Institute of Technology, Kungliga tekniska högskolan, KTH, Department of Metallurgy, Royal Institute of Technology, Stockholm, Division of Metallurgy, Department of Materials Science and Technology, Royal Institute of Technology
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: Journal of Mining and Metallurgy, Section B. - 1450-5339. ; 49:2, s. 207-215
- Relaterad länk:
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https://doi.org/10.2...
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https://urn.kb.se/re...
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https://doi.org/10.2...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Direct chromium alloying by chromite ore in EAF operation is a promising process in stainless steel production, which has the advantage of resource-saving, energy-saving, and environment-friendly. In the present investigation, iron, carbon, and chromite ore mixture (Fe+C+FeCr2O4) were chosen as the precursor for direct chromium alloying. Thermogravimetric Analysis (TGA) experiments were carried out to investigate the effect of iron content on the reduction kinetics, and the results show that the presence of metallic iron in the precursor will increase the reduction rate of chromite. Up-scaling experiments (100 g and 500 g scale) have been carried out in the induction furnace to further test the effectiveness of using industrial chromite ore for direct chromium alloying. The induction furnace tests confirmed the necessity of adjusting composition of the slags to ensure high yield of chromium in the final products; and chromium yield can reach 90%.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Chromite ore
- Direct alloying
- Stainless steel
- Thermogravimetric analysis
- Process Metallurgy
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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