ALUMINUM-BASE MATERIAL Russian patent published in 2005 - IPC

FIELD: metallurgy, namely aluminum-base deformed materials used for making articles operating in different media, for example in corrosion atmosphere at wide temperature range.

SUBSTANCE: material contains manganese, silicon and zirconium and it features structure being matrix on base of solid solution of aluminum with uniformly distributed Al- Mn dispersoids. Material contains next relation of ingredients, mass. %: manganese, no more than 2.3; silicon, 0.1 - 0.3; zirconium, 0.3 - 0.7; aluminum, the balance. Material has structure containing solid solution of aluminum including at least 0.1 mass % of silicon; Al-Mn dispersoids of mean size no more than 500 nm and in addition dispersoids of meta-stable phase Al₃Zr with mean size no more than 15 nm at next relation, vol.%: Al-Mn dispersoids, 4.5 - 8.0; Al₃Zr dispersoids, no less than 0.4; solid solution base matrix, the balance.

EFFECT: new deformed material of enhanced strength, mainly in annealed state.

7 cl, 2 dwg, 3 tbl, 1 ex