Effect of lead on the structure and phase composition of an Al–5% Si–4% Cu casting alloy
| Autor: | O. O. Stolyarova, A. O. Yakovleva, Nikolay A. Belov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) Spinodal decomposition Metallurgy Alloy Metals and Alloys Analytical chemistry chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Isothermal process 020303 mechanical engineering & transports Precipitation hardening 0203 mechanical engineering chemistry Aluminium Phase composition 0103 physical sciences engineering Solid solution |
| Zdroj: | Russian Metallurgy (Metally). 2016:198-206 |
| ISSN: | 1555-6255 0036-0295 |
| DOI: | 10.1134/s0036029516030034 |
| Popis: | The phase transformations in the Al–Cu–Si–Pb system have been studied using calculations. It is shown that the aluminum-based solid solution is in equilibrium only with the Al2Cu, (Si), and (Pb) phases, which correspond to the relevant binary systems. Reported polythermal and isothermal sections show that the Al–Cu–Si–Pb system is characterized by a significant liquid miscibility gap. The effect of lead on the structure and phase composition of an Al–5% Si–4% Cu alloy in the as-cast and annealed states is studied. Lead inclusions are located at the boundaries of dendritic (Al) cells and are globular in the as-cast alloy and after annealing at 500°C. The presence of lead phase does not affect the precipitation hardening upon quenching and aging. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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