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The influence of different calcium-based additions on desulphurisation and inclusion characteristics
KTH, Superseded Departments, Materials Science and Engineering.
KTH, Superseded Departments, Materials Science and Engineering.
2001 (English)In: Scandinavian journal of metallurgy, ISSN 0371-0459, Vol. 30, no 3, 127-135 p.Article in journal (Refereed) Published
Abstract [en]

The size, distribution, and composition of inclusions during the desulphurisation and deoxidation steps were studied in laboratory experiments. 3 different calcium-based desulphurisation mixtures were used. The number of inclusions and composition of inclusions were then determined using optical microscopy and scanning electron microscopy, respectively. The results show that 2 of the 3 proposed desulphurisation mixtures managed to render lower and roughly equivalent inclusion counts. The results also show that the composition of the inclusions in all 3 samples varied from the beginning to the end of the desulphurisation process. A desulphurisation mixture consisting of Al, CaO, CaCO3 and CaSi produced the overall best results with respect to desulphurisation and inclusion characteristics.

Place, publisher, year, edition, pages
2001. Vol. 30, no 3, 127-135 p.
Keyword [en]
desulphurisation, inclusions, calcium modification, size distribution, inclusion composition
URN: urn:nbn:se:kth:diva-20629ISI: 000168713200003OAI: diva2:339325
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Andersson, Margareta A.T.Jönsson, Pär
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