Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.typeArtigo de eventopt_BR
dc.titleThe Variation Of The Metal/mold Heat Transfer Coefficient Along The Cross Section Of Cylindrical Shaped Castingspt_BR
dc.contributor.authorSouza E.N.pt_BR
dc.contributor.authorCheung N.pt_BR
dc.contributor.authorSantos C.A.pt_BR
dc.contributor.authorGarcia A.pt_BR
unicamp.authorSouza, E.N., Department of Materials Engineering, State University of Campinas, UNICAMP, Campinas, SP, Brazilpt_BR
unicamp.authorCheung, N., Department of Materials Engineering, State University of Campinas, UNICAMP, Campinas, SP, Brazilpt_BR
unicamp.authorSantos, C.A., Department of Materials Engineering, State University of Campinas, UNICAMP, Campinas, SP, Brazilpt_BR
unicamp.authorGarcia, A., Department of Materials Engineering, State University of Campinas, UNICAMP, Campinas, SP, Brazilpt_BR
dc.description.abstractDuring solidification, the mathematical analysis of heat flow depends on the transient heat transfer coefficient at the metal/mold interface. The analysis of heat transfer behavior along a cylindrical section is necessary for a better control of solidification in conventional foundry and continuous casting processes. For this purpose, a water-cooled experimental apparatus was developed, and experiments were carried out with Sn-Pb alloys with different melt superheats. The heat transfer coefficients were determined by a theoretical-experimental fit of thermal profiles (IHCP). The results have shown a variation in heat flow conditions along the metal/mold interface provoked by the action of solidification thermal contraction connected with the gravitational effect. In macrostructural terms, this effect was evident with an asymmetric structure due to the variation of metal/mold thermal contact along the cylinder cross section. Experimental equations correlating heat transfer coefficients as a power function of time along the cross section of cylindrical horizontal castings of Sn-Pb alloys are proposed.en
dc.relation.ispartofInverse Problems in Science and Engineeringpt_BR
dc.identifier.citationInverse Problems In Science And Engineering. , v. 14, n. 5, p. 467 - 481, 2006.pt_BR
dc.description.provenanceMade available in DSpace on 2015-06-30T18:19:20Z (GMT). No. of bitstreams: 1 2-s2.0-33745631205.pdf: 437871 bytes, checksum: 8d050b097f23c44f923409e61c188d83 (MD5) Previous issue date: 2006en
dc.description.provenanceMade available in DSpace on 2015-11-26T14:29:34Z (GMT). No. of bitstreams: 2 2-s2.0-33745631205.pdf: 437871 bytes, checksum: 8d050b097f23c44f923409e61c188d83 (MD5) 2-s2.0-33745631205.pdf.txt: 28619 bytes, checksum: 816ecb50d547992b8495d8b3a066acd8 (MD5) Previous issue date: 2006en
dc.description.referenceGoudie, N.J., Argyropoulos, S.A., Technique for the estimation of thermal resistance at solid metal interfaces formed during solidification and melting (1995) Canadian Metallurgical Quartely, 34, pp. 73-84pt_BR
dc.description.referenceKrishnan, M., Sharma, D.G.R., Determination of the interfacial heat transfer coefficient h in unidirectional heat flow by Beck's non linear estimation procedure (1996) International Communications in Heat Mass Transfer, 23, pp. 203-214pt_BR
dc.description.referenceLee, J.H., Kim, H.S., Won, C.W., Cantor, B., Effect of the gap distance on the cooling behavior and the microstructure of indirect squeeze cast and gravity die cast 5083 wrought Al alloy (2002) Materials Science and Engineering A, 338, pp. 182-190pt_BR
dc.description.referenceLoulou, T., Artyukhin, E.A., Bardon, J.P., Estimation of thermal contact resistance during the first stages of metal solidification process: I - Experiment principle and modelisation (1999) International Journal of Heat and Mass Transfer, 42, pp. 2119-2127pt_BR
dc.description.referenceMartorano, M.A., Capocchi, J.D.T., Heat transfer coefficient at the metal-mould interface in the unidirectional solidification of Cu-8%Sn alloys (2000) International Journal of Heat and Mass Transfer, 43, pp. 2541-2552pt_BR
dc.description.referenceSiqueira, C.A., Cheung, N., Garcia, A., Solidification thermal parameters affecting the columnar-to-equiaxed transition (2002) Metallurgical and Materials Transactions A, 33 A, pp. 2107-2117pt_BR
dc.description.referenceSantos, C.A., Siqueira, C.A., Garcia, A., Metal-mold heat transfer coefficients during horizontal and vertical unsteady-state solidification of Al-Cu and Sn-Pb alloys (2004) Inverse Problems in Engineering, 12, pp. 279-296pt_BR
dc.description.referenceFortin, G., Louchez, P.R., Samuel, F.H., Evolution of the heat transfer during the radial solidification of pure aluminium (1994) La Revue of Métallurgie-CIT/Science et Génie Gives Matériaux, 91, pp. 771-780pt_BR
dc.description.referenceTrovant, M., Argylopoulos, S., Finding boundary conditions: A coupling strategy goes the modeling of metal casting process: part i (2000) Experimental Study and Correlation Development. Metallurgical and Materials Transactions B, 31, pp. 75-86pt_BR
dc.description.referenceKim, T.G., Lee, Z.H., Time-varying heat transfer coefficients between tube-shaped casting and metal mold (1997) International Journal of Heat and Mass Transfer, 40 (15), pp. 3513-3525pt_BR
dc.description.referenceIncropera, F.P., Dewitt, D.P., (1990) Fundamentals of Heat and Mass Transfer, 3rd Edn, p. 58. , Singapore: John Wiley & Sonspt_BR
dc.description.referenceSantos, C.A., Quaresma, J.M.V., Garcia, A., Determination of transient interfacial heat transfer coefficients in chill mold castings (2001) Journal of Alloys and Compounds, 319, pp. 174-186pt_BR
dc.description.referenceSiqueira, C.A., Cheung, N., Garcia, A., The columnar to equiaxed transition during solidification of Sn-Pb alloys (2003) Journal of Alloys and Compounds, 351, pp. 126-134pt_BR
dc.description.referenceBeck, J.A., Nonlinear estimation applied to the nonlinear inverse heat conduction problem (1970) International Journal of Heat and Mass Transfer, 13, pp. 703-716pt_BR
dc.description.referencePehlke, R.D., Jeyarajan, A., Wada, H., (1981) Summary of Thermophysical Properties for Casting Alloys and Mold Materials, , Ann Arbor: University of Michiganpt_BR
dc.description.referenceToloukian, Y.S., (1970) Thermal Properties of Matter, 1. , New York: IFI/Plenumpt_BR
dc.description.referenceBenjan, A., (1993) Heat Transfer, , New York: Wilept_BR
dc.description.referenceBouchard, D., Kirkaldy, J.S., Prediction of dendrite arm spacings in unsteady and steady-state heat flow of unidirectionally solidified binary alloys (1997) Metallurgical Transactions, 28 B, pp. 651-663pt_BR
dc.description.referenceCampbell, J., (1991) Castings, , London: Butherworth Heinemannpt_BR
dc.description.referenceRocha, O.F.L., Siqueira, C.A., Garcia, A., Heat flow parameters affecting dendrite spacings during unsteady-state solidification of Sn-Pb and Al-Cu alloys (2003) Metallurgical and Materials Transactions, 34 A, pp. 995-1006pt_BR
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
2-s2.0-33745631205.pdf427.61 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.