Change search
ReferencesLink to record
Permanent link

Direct link
Measurements and modelling of air gap formation in Cu-based alloys
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
2005 (English)In: International Journal of Cast Metals Research, ISSN 1364-0461, Vol. 18, no 1, 21-28 p.Article in journal (Refereed) Published
Abstract [en]

The formation of an air gap has been experimentally studied during solidification of pure Cu, Cu-Te and Cu-6%Sn in a cylindrical mould. The displacements of the casting and the mould causing an air gap have been measured during solidification and cooling of the casting. The temperature distribution was measured simultaneously. Mathematical modelling has been performed to increase the understanding of the solidification process and the shrinkage of the casting leading to air gap formation. A model, which has been tested in earlier work showing good results for aluminium based alloys, has been applied here to describe air gap formation during solidification of copper based alloys. The model includes the effect of the formation and condensation of vacancies on the solidification process as well as on the material shrinkage resulting in air gap formation. The results from the modelling show a reasonable agreement with the experimental measurements.

Place, publisher, year, edition, pages
2005. Vol. 18, no 1, 21-28 p.
Keyword [en]
air gap, shrinkage, solidification, casting, heat transfer coefficient, Cu-base alloy, vacancy condensation, heat-transfer, si alloy, al-si, solidification
URN: urn:nbn:se:kth:diva-14624DOI: 10.1179/136404605225022802ISI: 000227828600003ScopusID: 2-s2.0-27444437894OAI: diva2:332665
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Fredriksson, Hasse
By organisation
Materials Processing
In the same journal
International Journal of Cast Metals Research

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 23 hits
ReferencesLink to record
Permanent link

Direct link