Synthesis of a Composite Alloy Based on Ore Concentrate and Oxide Compounds
| Autor: | Hosen Ri, M. A. Ermakov, Andrey S. Zhivetyev, E. H. Ri, E. D. Kim |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Metallurgy Alloy Intermetallic Ore concentrate Oxide chemistry.chemical_element 02 engineering and technology engineering.material Tungsten 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences chemistry.chemical_compound Chromium chemistry Mechanics of Materials Scheelite 0103 physical sciences engineering General Materials Science 0210 nano-technology Solid solution |
| Zdroj: | Materials Science Forum. 1037:218-223 |
| ISSN: | 1662-9752 |
| Popis: | The conditions for the synthesis of Al-Cr-W alloys during the aluminothermic reduction of a mineral tungsten concentrate - scheelite were considered. The alloys were identified as an aluminum matrix by the methods of elemental and X-ray phase analyzes. It is shown that the alloy synthesized from scheelite concentrate contains small amounts of iron and oxygen impurities (1.2 wt. %). It has been established that the alloys have a composite structure: inclusions of continuously solid solutions based on chromium and tungsten, as well as chromium aluminides Al3(Cr, W, Fe)2, which have increased microhardness values (12.9 GPa) are distributed in the aluminum matrix. |
| Databáze: | OpenAIRE |
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