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- Ricci, E., et al.
(författare)
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Thermophysical properties of Cu-based industrial alloys in the liquid phase
- 2009
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Ingår i: High Temperatures-High Pressures. - 0018-1544 .- 1472-3441. ; 38:1, s. 43-61
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Tidskriftsartikel (refereegranskat)abstract
- The thermophysical properties of Cu-based industrial alloys in the liquid phase have been determined in the framework of ThermoLab project. Four commercial copper alloys provided by one member of the industrial user group, Cu-Sn-X (X=P; Ti), Cu-Ni-Si and Cu-Ni-Si-Mg have been investigated by different European laboratories. The results of the ground-based experimental programme concerning classical high-temperature calorimetry, thermal diffusivity, density, surface tension and viscosity measurements were critically compared in order to improve the reliability of data and to identify, when possible, recommended values.
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4. |
- Ricci, E., et al.
(författare)
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Density, surface tension, and viscosity of CMSX-((R)) superalloy
- 2007
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Ingår i: International journal of thermophysics. - : Springer Science and Business Media LLC. - 0195-928X .- 1572-9567. ; 28:4, s. 1304-1321
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Tidskriftsartikel (refereegranskat)abstract
- The surface tension, density, and viscosity of the Ni-based superalloy CMSX-4((R)) have been determined in the temperature ranges of 1,650-1,850 K, 1,650-1,950 K, and 1,623-1,800 K, respectively. Each property has been measured in parallel by different techniques at different participating laboratories, and the results are compared with the aim to improve the reliability of data and to identify recommended values. The following relationships have been proposed: density-rho (T) [kg.m(-3)] = 7,876 - 1.23(T - 1,654 K); surface tension-gamma (T) [mN.m(-1)] = 1,773 - 0.56 (T - 1, 654 K); viscosity-eta (T) [mPa.s] = 8.36 - 1.82 x 10(-2)(T - 1,654 K). For a comparison, surface-tension measurements on the Al-88.6 at% Ni liquid alloy with the same Al-content as the CMSX-4((R)) alloy were also performed. In addition, the surface tension and density have been theoretically evaluated by different models, and subsequently compared with new experimental data as well as with those reported in the literature. The surface-tension experimental data for the liquid CMSX-4((R)) alloy were found to be close to that of the A1-88.6 at% Ni alloy which is consistent with results from the compound formation model (CFM).
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