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2 632 341

(13)

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IPC

B22F3/23(2006-01-01)

C22C1/04(2006-01-01)

C22C21/00(2006-01-01)

C22C19/03(2006-01-01)

(21) (22)

Application

2016108331, 2016-03-09

(24)

Start date

2016-03-09

(22)

Actual filing date

2016-03-09

(45)

Published

2017-10-04

(72)

Inventor

Ri KhosenGostishchev Viktor VladimirovichMedneva Anastasiya VitalevnaRi Ernst KhosenovichBogachev Anatolij Petrovich

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet"

METHOD FOR PRODUCING NICKEL ALUMINIDE-BASED MATERIALS Russian patent published in 2017 - IPC B22F3/23 C22C1/04 C22C21/00 C22C19/03

Abstract RU 2632341 C2

FIELD: metallurgy.

SUBSTANCE: method includes preparation of exothermic charge by mixing aluminium powders, nickel oxide and at least one alloying additive and initiation in the exothermic charge of metallothermic reaction providing reduction of oxides and formation of nickel aluminide. The exothermic charge is prepared with addition of ballast additive, which acts as flux, in the form of calcium fluoride. Aluminium powder is used in excess relative to stoichiometric ratio of powders in mixture. Chromium oxides are used as alloying additive, or oxides of molybdenum, or oxides of tungsten, or oxides of titanium in amount of not more than 15 wt %. Metallothermic reaction in exothermal charge is carried out without external heating in reactor or in open air with production of material based on nickel aluminide in the form of ingot.

EFFECT: reduce number of technological cycles and increase purity and yield of material based on nickel aluminide.

1 tbl, 3 ex

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RU 2 632 341 C2

Authors

Ri Khosen

Gostishchev Viktor Vladimirovich

Medneva Anastasiya Vitalevna

Ri Ernst Khosenovich

Bogachev Anatolij Petrovich

Dates

2017-10-04—Published

2016-03-09—Filed