Phase Selection during Solidification of Ni-10.95 at. % and B-3.23 at. % Si Alloy
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Thermal Curves and Microstructure
3.2. Heating
3.3. Cooling
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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B | Si | Fe | Cr | Al | Ti | C | S | Ni |
---|---|---|---|---|---|---|---|---|
10.945 | 3.228 | 0.030 | 0.020 | 0.062 | 0.002 | 0.074 | 0.015 | Balance |
Reaction | Description |
---|---|
R1m or R1s | Melting or solidification of nickel. |
R2m or R2s | Melting or solidification of the stable constituent of eutectic Ni-Ni3B. |
R3m or R3s | Melting or solidification of the metastable NixBy alone or as part of a eutectic constituent. |
R4 | Solid-state transformation of the NixBy constituent to Ni-Ni3B stable constituents. |
R2m (°C) | Comments | Reference |
---|---|---|
Tonset = 1070 ± 2 °C Tpeak = 1100 ± 4 °C | Ni-10.95 at. % B-3.23 at. % Si alloy. Average of 21 data points from peaks observed during heating. | This study. |
T = 1100 °C | Ni-16.2 at. % B-1 at. % Si, during heating. | [4] |
Tini = 1128 °C Tend = 1125 °C | Ni-10.95 at. % B-3.23 at. % Si alloy. Tini and Tend are the initial and final temperatures for eutectic reaction, respectively. | ThermoCalc simulation with TCNI5 database data, lever rule. |
Tini = 1129 °C Tend = 1090 °C | Ni-10.95 at. % B-3.23 at. % Si alloy. | ThermoCalc simulation with TCNI5 database data, Scheil-Gulliver model with activated option of fast diffusing elements. |
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Fraga-Chávez, K.L.; Castro-Román, M.J.; Herrera-Trejo, M.; Ramírez-Vidaurri, L.E.; Aguilera-Luna, I. Phase Selection during Solidification of Ni-10.95 at. % and B-3.23 at. % Si Alloy. Metals 2017, 7, 187. https://doi.org/10.3390/met7060187
Fraga-Chávez KL, Castro-Román MJ, Herrera-Trejo M, Ramírez-Vidaurri LE, Aguilera-Luna I. Phase Selection during Solidification of Ni-10.95 at. % and B-3.23 at. % Si Alloy. Metals. 2017; 7(6):187. https://doi.org/10.3390/met7060187
Chicago/Turabian StyleFraga-Chávez, Karla L., Manuel Jesús Castro-Román, Martín Herrera-Trejo, Luciano Eliezer Ramírez-Vidaurri, and Israel Aguilera-Luna. 2017. "Phase Selection during Solidification of Ni-10.95 at. % and B-3.23 at. % Si Alloy" Metals 7, no. 6: 187. https://doi.org/10.3390/met7060187