Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Thermodynamic activity measurements in nickel-base industrial alloys and steels by Knudsen cell Mass spectrometry

Chatain, Sylvie, Alpettaz, Thierry, Gosse, Stephane, Gueneau, Christine
J. Chem. Thermodyn. 2017, 114, 144-150
ABSTRACT
The first activity measurements of nickel, copper, chromium and iron in industrial nickel-base alloys (Monel 400, Monel K-500, Nicorros 400, Nicorros K-500, Hastelloy-X , Hastelloy-C2000 , model alloy 1181) and steels (Uranus 65 and Uranus 45N) were performed using multiple Knudsen effusion Cell Mass Spectrometry in the temperature range 1483-1593 K. For each constituent, the activity is expressed as: ln(ai) = (A +- dA)/T + (B +- dB). The experimental results were compared with calculated data using the SSOL2 database from Thermo-Calc.
Compounds
# Formula Name
1 Cu copper
2 Ni nickel
3 Cr chromium
4 Fe iron
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 1
  • Molar enthalpy of vaporization or sublimation, kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Crystal
  • Gas
  • Derived by Second law
  • 1
  • POMD
  • 2
  • Molar enthalpy of vaporization or sublimation, kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Crystal
  • Gas
  • Derived by Second law
  • 1
  • POMD
  • 3
  • Molar enthalpy of vaporization or sublimation, kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Crystal
  • Gas
  • Derived by Second law
  • 1
  • POMD
  • 4
  • Molar enthalpy of vaporization or sublimation, kJ/mol ; Crystal
  • Temperature, K; Crystal
  • Crystal
  • Gas
  • Derived by Second law
  • 1