TUNGSTEN-BASE ALLOY Russian patent published in 2003 - IPC

Abstract RU 2206629 C2

FIELD: metallurgy. SUBSTANCE: invention relates to preparing sintered tungsten-base heavy alloys used for making articles subjecting for significant total deformation up to 50-80%, for example, for special articles. Invention proposes tungsten- -base alloy comprising cobalt, tantalum, nickel, iron that comprises additionally lanthanum in the following ratio of components, wt. -%: cobalt, 0.6-0.8; tantalum, 0.2-0.4; nickel, 2.0-5.0; iron, 1.2-1.6; lanthanum, 0.1-0.2; tungsten, the balance. Invention provides making articles with density 17.8-18.2 kgf/cm3 and enhanced indices of density and plasticity. EFFECT: enhanced and valuable properties of alloy. 1 tbl, 1 ex

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RU 2 206 629 C2

Authors

Kljachko L.I.

Glushkov V.N.

Mikhajlov V.G.

Kosachev L.S.

Dates

2003-06-20Published

2001-06-04Filed