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Heat and Mass Transfer/Waerme- und StoffuebertragungVolume 50, Issue 8, August 2014, Pages 1115-1124

Dependence of interfacial heat transfer coefficient on casting surface temperature during solidification of Al-Si alloy castings cast in CO2 sand mold(Article)

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  • Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, 21000 Novi Sad, Serbia

Abstract

Interfacial heat transfer coefficient at the metal-mold interface (IHTC) was estimated by an iterative algorithm based on the function specification method. An Al-9 wt% Si alloy plate casting was made in a sand mold prepared by CO2 process. Thermal history obtained from the experiment was used to solve an inverse heat conduction problem. Acquired transient IHTC values are then given in function of the casting surface temperature at the interface. By comparing the obtained results with previous findings, the influence of grain fineness number and consequently of mold roughness on maximum IHTC values is revealed. © 2014 Springer-Verlag Berlin Heidelberg.

Indexed keywords

Engineering controlled terms:AlgorithmsAluminumAtmospheric temperatureCarbon dioxideMetal castingMoldsSiliconSurface properties
Engineering uncontrolled termsCasting surfaceFunction specification methodGrain fineness numberInterfacial heat transfer coefficientsInverse heat conduction problemIterative algorithmMetal-mold interfaceThermal history
Engineering main heading:Silicon alloys

Funding details

Funding sponsor Funding number Acronym
Ministarstvo Prosvete, Nauke i Tehnološkog RazvojaMPNTR

  • 1

    The authors gratefully acknowledge financial support provided by the Serbian Ministry of Education, Science and Technological Development.

  • ISSN: 09477411
  • CODEN: HMTRF
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1007/s00231-014-1326-0
  • Document Type: Article
  • Publisher: Springer Verlag

  Kovačević, L.; Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, Serbia;
© Copyright 2014 Elsevier B.V., All rights reserved.

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