Microstructural Features and Properties of Al-Cu-Mg Alloy Containing Silver and Cerium
| Autor: | P. L. Reznik, Boris Ovsyannikov |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Metallurgy Alloy chemistry.chemical_element 02 engineering and technology Electron microprobe engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences Atomic and Molecular Physics and Optics law.invention Cerium chemistry law Phase composition 0103 physical sciences engineering General Materials Science Crystallization 0210 nano-technology |
| Zdroj: | Solid State Phenomena. 316:533-537 |
| ISSN: | 1662-9779 |
| Popis: | The article presents the results of an investigation of microstructural features and mechanical characteristics of Al-5.0Cu-0.5Mg alloy containing up to 0.4 wt. % Ag and up to 0.1 wt. % Ce. The experiment was conducted using optical microscopy, Scanning Electron Microscopy as well as an electron probe micro-analyzer and Differential Scanning Calorimetry. Samples in cast condition and after heat treatment were examined. The melting temperatures of non-equilibrium eutectics (non-equilibrium solidus), equilibrium solidus and liquidus were determined. The optimal temperature of the homogenizing heat treatment was determined, which was 500°C. Using this heat treatment mode resulted in the elimination of dendritic segregation and complete dissolution of silver in aluminum. Injection of cerium into the Al-Cu-Mg-Ag system during crystallization of the melt is accompanied by the formation of a coarse four-component phase, which has the morphology of polyhedrons, is on the grain boundaries. The estimation of the relation between microstructure characteristics and mechanical properties of the alloy has been made. |
| Databáze: | OpenAIRE |
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