Refining as-cast structures of novel SixTiVCrZr high-entropy alloys using estimated effective solidification temperature obtained using Chvorinov’s rule
| Autor: | Maximillian Bloomfield, Zhaoyuan Leong, Yuhe Huang, Bethany Jim, Michael Schobitz, Russell Goodall, Jem Pitcairn, Silvija Zilinskaite, Lorna Sinclair, George Kerridge |
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| Přispěvatelé: | Bloomfield, Maximilian [0000-0002-6529-261X], Apollo - University of Cambridge Repository |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
lcsh:TN1-997 Materials science High entropy alloys Alloy Metals and Alloys Thermodynamics 02 engineering and technology engineering.material Arc melting 021001 nanoscience & nanotechnology 01 natural sciences complex concentrated alloys (ccas) silicide Full article high-entropy alloys (heas) Phase (matter) 0103 physical sciences engineering alloy design General Materials Science arc-melting Chvorinov's rule 0210 nano-technology lcsh:Mining engineering. Metallurgy Refining (metallurgy) |
| Zdroj: | Metals Metals, Vol 10, Iss 3, p 317 (2020) Volume 10 Issue 3 |
| Popis: | High-entropy alloys (HEAs), i.e., multicomponent alloys where (typically five or more) elements are combined in equal, or roughly equal, quantities, are of great current interest, due to their formation of single, simple structured phases, and the unusual properties they can potentially exhibit. Phase presence may be predicted using semi-empirical methods, but deviations from predictions may be seen during the course of alloy synthesis, with the formation of unexpected phases. The generation of such phases may be controlled with knowledge of the effective solidification temperature in this full article, Chvorinov&rsquo s rule for solidification time is used to estimate this temperature as part of the design of a new multiphase alloy system, TiVCrZr-Six. Further heat treatment of the TiVCrZr-Si system confirms the applicability of this approach. The new compositions demonstrate mechanical properties that suggest potential for optimization for high-temperature applications. |
| Databáze: | OpenAIRE |
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