METHOD OF DEOXIDIZING OF Al-Nb-Ti ALLOY Russian patent published in 2018 - IPC C22C1/02 C22B9/10 C22B9/20 C22C21/00 

Abstract RU 2665654 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to the production of aluminum alloys, in particular to a method for deoxidizing fused aluminum alloys. Method for deoxidizing the Al-Nb-Ti alloy comprises melting and holding an alloy containing 50 to 75 % by weight of Al and 5 to 30 % by weight of Nb with a total content of Al and Nb of 80 % by mass or less, using the initial aluminum, niobium and titanium materials with a total oxygen content of 0.5 % by weight or more, wherein the melting is carried out by a melting method using a water-cooled copper vessel in the atmosphere at a pressure of 1.33 Pa to 2.67 × 105 Pa at a temperature of 1900 K or more.

EFFECT: invention is aimed at reducing oxygen in Al-Nb-Ti alloy, with the possibility of obtaining it without using a high vacuum from a low-grade starting material with a high oxygen content.

3 cl, 4 dwg, 2 ex, 2 tbl

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RU 2 665 654 C1

Authors

Matsuwaka Daisuke

Kudo Fumiaki

Deura Tetsushi

Ishida Hitoshi

Sakamoto Koichi

Dates

2018-09-03Published

2015-11-04Filed