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Measurements and modeling of air gap formation in iron-base alloys
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
2005 (English)In: Materials Science & Engineering: A, ISSN 0921-5093, E-ISSN 1873-4936, Vol. 413, 44-51 p.Article in journal (Refereed) Published
Abstract [en]

The formation of an air gap has been experimentally studied during solidification of several iron-based alloys. Air gap widths and temperature distribution have been measured during solidification in a cylindrical water-cooled Cu-mold. Mathematical modeling has been performed to increase the understanding of the solidification process and the air gap formation. A model, developed earlier for Al- and Cu-based alloys, for description of air gap formation in alloys solidifying with varying solidification intervals was tested for Fe-base alloys. The model includes the effect of formation and condensation of lattice defects on the solidification process and the air gap formation. The calculated shrinkage using this model shows good agreement with the experimental data.

Place, publisher, year, edition, pages
2005. Vol. 413, 44-51 p.
Keyword [en]
air gap formation, shrinkage, heat-transfer, si alloy, al-si, solidification, aluminum
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-15274DOI: 10.1016/j.msea.2005.08.165ISI: 000234202900007Scopus ID: 2-s2.0-29444449135OAI: oai:DiVA.org:kth-15274DiVA: diva2:333315
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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