Simulating convection and macrosegregation in superalloys

S. D. Felicelli; D. R. Poirier; A. F. Giamei; J. C. Heinrich

doi:10.1007/BF02914651

Simulating convection and macrosegregation in superalloys

S. D. Felicelli
, D. R. Poirier
, A. F. Giamei
, J. C. Heinrich

Materials Science & Engr

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Numerical simulations using a mathematical model of the dendritic solidification of multicomponent alloys that includes thermosolutal convection and macrosegregation were conducted on nickel-based alloys. The results show that segregation patterns vary greatly with cooling conditions, adopting several shapes and levels of intensity. In addition, the segregation patterns are particularly sensitive to the values of the equilibrium partition coefficients of the alloy components.

Original language	English (US)
Pages (from-to)	21-25
Number of pages	5
Journal	JOM
Volume	49
Issue number	3
DOIs	https://doi.org/10.1007/BF02914651
State	Published - Mar 1997

ASJC Scopus subject areas

General Materials Science
General Engineering

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10.1007/BF02914651

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title = "Simulating convection and macrosegregation in superalloys",

abstract = "Numerical simulations using a mathematical model of the dendritic solidification of multicomponent alloys that includes thermosolutal convection and macrosegregation were conducted on nickel-based alloys. The results show that segregation patterns vary greatly with cooling conditions, adopting several shapes and levels of intensity. In addition, the segregation patterns are particularly sensitive to the values of the equilibrium partition coefficients of the alloy components.",

author = "Felicelli, \{S. D.\} and Poirier, \{D. R.\} and Giamei, \{A. F.\} and Heinrich, \{J. C.\}",

note = "Funding Information: This work was supported by the Advance Research Project Agency, under the Micromodeling Program of the Investment Casting Cooperative Arrangement through contract MDA972-93-2-O001. The authors very much appreciate Dan Backman of General Electric Aircraft Engines, Boyd Mueller of Howmet Research Center, and W. Boettinger of the National Institute of Standards and Technology for always being available to discuss our work and in administrating the contract. The provision of a fellowship to S.D. Felicelli by the Consejo Nacional de Investigaciones Cientificas y Tecnicas ( CONICET-Argentina) as well as financial support to him by the Argentine Atomic Energy Commission is gratefully acknowledged.",

year = "1997",

month = mar,

doi = "10.1007/BF02914651",

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volume = "49",

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journal = "JOM",

issn = "1047-4838",

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AU - Felicelli, S. D.

AU - Poirier, D. R.

AU - Giamei, A. F.

AU - Heinrich, J. C.

N1 - Funding Information: This work was supported by the Advance Research Project Agency, under the Micromodeling Program of the Investment Casting Cooperative Arrangement through contract MDA972-93-2-O001. The authors very much appreciate Dan Backman of General Electric Aircraft Engines, Boyd Mueller of Howmet Research Center, and W. Boettinger of the National Institute of Standards and Technology for always being available to discuss our work and in administrating the contract. The provision of a fellowship to S.D. Felicelli by the Consejo Nacional de Investigaciones Cientificas y Tecnicas ( CONICET-Argentina) as well as financial support to him by the Argentine Atomic Energy Commission is gratefully acknowledged.

PY - 1997/3

Y1 - 1997/3

N2 - Numerical simulations using a mathematical model of the dendritic solidification of multicomponent alloys that includes thermosolutal convection and macrosegregation were conducted on nickel-based alloys. The results show that segregation patterns vary greatly with cooling conditions, adopting several shapes and levels of intensity. In addition, the segregation patterns are particularly sensitive to the values of the equilibrium partition coefficients of the alloy components.

AB - Numerical simulations using a mathematical model of the dendritic solidification of multicomponent alloys that includes thermosolutal convection and macrosegregation were conducted on nickel-based alloys. The results show that segregation patterns vary greatly with cooling conditions, adopting several shapes and levels of intensity. In addition, the segregation patterns are particularly sensitive to the values of the equilibrium partition coefficients of the alloy components.

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Simulating convection and macrosegregation in superalloys

Abstract

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