Surface precipitation of supersaturated solutes in a ternary Fe–Au–W alloy and its binary counterparts
| Autor: | S. van der Zwaag, Y. Fu, Ekkes Brück, Johannes C. Brouwer, N.H. van Dijk, Willem G. Sloof, C. Kwakernaak |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Supersaturation Number density Materials science Ternary numeral system Precipitation (chemistry) Mechanical Engineering Kinetics Alloy Thermodynamics 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Mechanics of Materials Free surface 0103 physical sciences engineering General Materials Science 0210 nano-technology Ternary operation |
| Zdroj: | Journal of Materials Science, 56(8) |
| ISSN: | 1573-4803 0022-2461 |
| Popis: | Abstract The precipitation of supersaturated solutes at free surfaces in ternary Fe–3Au–4W and binary Fe–3Au and Fe–4W alloys (composition in weight percentage) for different ageing times was investigated at a temperature of 700 °C. The time evolution of the surface precipitation is compared among the three alloys to investigate the interplay between the Au and W solutes in the ternary system. The Au-rich grain-interior surface precipitates show a similar size and kinetics in the Fe–Au–W and Fe–Au alloys, while the W-rich grain-interior surface precipitates show a smaller size and a higher number density in the Fe–Au–W alloy compared to the Fe–W alloy. The kinetics of the precipitation on the external free surface for the ternary Fe–Au–W alloy is compared to the previously studied precipitation on the internal surfaces of the grain-boundary cavities during creep loading of the same alloy. Graphical abstract |
| Databáze: | OpenAIRE |
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