The influence of modification by superdispersed powders on the lead-tin-base bronze structure
| Autor: | Yury Yurievich Drozdov, A. T. Alpeisov, Nikita V. Martyushev, Ilya V. Semenkov, Anna Zykova, A. I. Popelyukh |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Base (chemistry) добавки chemistry.chemical_element модификация engineering.material 01 natural sciences chemistry.chemical_compound бронзы Phase (matter) 0502 economics and business 0103 physical sciences порошки оксид алюминия отливки Bronze Eutectic system chemistry.chemical_classification 010308 nuclear & particles physics 05 social sciences Metallurgy Copper свинец твердые включения chemistry дисперсные порошки engineering Aluminium oxide Tin 050203 business & management Solid solution |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 124:012114 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/124/1/012114 |
| Popis: | The paper presents data on the influence of additives of the pre-treated aluminium oxide powder on the structure of cast lead-tin-based bronzes. Different quantities of the modifier, based on the superdispersed aluminum oxide powder, were added to the bronze melt. The studies have shown that addition of a small amount of aluminum oxide powder (0.07... 0.25 %) allows modifying the micro structure of the obtained castings. This modification includes grain refinement, reduction of the matrix dendrites size of tin solid solution in copper, as well as formation of spherical inclusions of the low-melting phase - lead. In this case, the addition of such modifier influences weakly the morphology and the quantity of solid eutectoid inclusions based on electron compound Cu[31] Sn[8]. |
| Databáze: | OpenAIRE |
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