Viscosities of aluminum-rich Al-Cu liquid alloys

S. Ganesan, R. Speiser, David R Poirier

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Viscosity data for Al-Cu liquid alloys in the ranges of 0≤C L≤33.1 wt pct Cu and 1173≤T ≤973 K are reviewed. It was found that Andrade's equation can be used to represent the variation of viscosity with temperature for a given composition, but that each of the two parameters in Andrade's equation shows no systematic variation with composition of the liquid-alloys. Consequently, arithmetic averages of the parameters were used and assumed to apply to all compositions in the range 0≤C L ≤33.1 wt pct Cu. Such a procedure implies that the viscosity happens to vary with composition solely because the specific volume varies with composition. In order to establish the predictability of extrapolating such simple behavior, a more complex model was considered. The latter model was recently presented by Kucharski and relates viscosity to the structure and thermodynamics of liquid alloys. Viscosities obtained by interpolating Andrade's equation and Kucharski's model compare closely; furthermore, values obtained by extrapolations to lower temperatures also compare favorably. Finally the simpler model was used to calculate the viscosity of the interdendritic liquid during solidification.

Original languageEnglish (US)
Pages (from-to)421-424
Number of pages4
JournalMetallurgical Transactions B
Volume18
Issue number2
DOIs
StatePublished - Jun 1987

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liquid alloys
Aluminum
Viscosity
viscosity
aluminum
Liquids
Chemical analysis
Extrapolation
Density (specific gravity)
solidification
Solidification
extrapolation
Thermodynamics
Temperature
thermodynamics
liquids

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Metals and Alloys
  • Materials Chemistry
  • Mechanics of Materials
  • Engineering(all)

Cite this

Viscosities of aluminum-rich Al-Cu liquid alloys. / Ganesan, S.; Speiser, R.; Poirier, David R.

In: Metallurgical Transactions B, Vol. 18, No. 2, 06.1987, p. 421-424.

Research output: Contribution to journalArticle

Ganesan, S. ; Speiser, R. ; Poirier, David R. / Viscosities of aluminum-rich Al-Cu liquid alloys. In: Metallurgical Transactions B. 1987 ; Vol. 18, No. 2. pp. 421-424.
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