	US 12,077,837 B2
	Heat-resistant aluminum powder material
Viktor Khrist'yanovich Mann, Krasnoyarsk (RU); Aleksandr Yur'evich Krokhin, Krasnoyarsk (RU); Dmitrij Konstantinovich Ryabov, Krasnoyarsk (RU); Roman Olegovich Vakhromov, Krasnoyarsk (RU); Vladimir Aleksandrovich Korolev, Krasnoyarsk (RU); Ivan Yur'evich Mikhajlov, Krasnoyarsk (RU); and Aleksandr Gareginovich Seferyan, Krasnoyarsk (RU)
Assigned to OBSHCHESTVO S OGRANICHENNOY OTVETSTVENNOST'YU “OBEDINENNAYA KOMPANIYA RUSAL INZHENERNO-TEKHNOLOGICHESKIY TSENTR”, Krasnoyarsk (RU)
Filed by Obshchestvo S Ogranichennoy Otvetstvennost'yu “Obedinennaya Kompaniya Rusal Inzhenerno-Tekhnologicheskiy Tsentr”, Krasnoyarsk (RU)
Filed on Jun. 27, 2022, as Appl. No. 17/850,730.
Application 17/850,730 is a continuation of application No. PCT/RU2020/050339, filed on Nov. 23, 2020.
Claims priority of application No. RU2019144429 (RU), filed on Dec. 27, 2019.
Prior Publication US 2022/0325384 A1, Oct. 13, 2022
Int. Cl. C22C 21/00 (2006.01); B22F 1/052 (2022.01)

CPC C22C 21/00 (2013.01) [B22F 1/052 (2022.01); B22F 2301/052 (2013.01); B22F 2304/10 (2013.01)]

1 Claim

1. An aluminum alloy powder for manufacturing products using additive technologies, the aluminum alloy powder containing nickel, manganese, iron, zirconium, and cerium, the aluminum alloy powder comprising:

at least one element selected from the group: copper and zinc, and

at least one element selected from the group: silicon and calcium, wherein the aluminum alloy powder composition comprises in wt. %:


	nickel	2.5 to 5.5
	manganese	1.0 to 3.5
	iron	0.15 to 2.0
	zirconium	0.2 to 1.0
	cerium	0.05 to 0.4

at least one element selected from the group comprising:


	copper and zinc	0.05 to 1.5 in total

and at least one element selected from the group comprising:

	silicon and calcium	0.1 to 2.0 in total
	aluminum and impurities	remainder,

wherein:

the content of nickel, manganese, and iron meet the condition Ni>Mn+Fe in the composition,

the aluminum alloy powder according to the composition contains an eutectic phase including Al₁₆Mn₃Ni or Al₉FeNi, or a combination of both Al₁₆Mn₃Ni and Al₉FeNi, which are thermally stable, and

the aluminum alloy powder further comprises dispersoids of an Al₃Zr type, the dispersoids enabling a tensile strength of at least 370 MPa in a resulting product generated using the aluminum alloy powder after printing or annealing to relieve internal stresses of the resulting product.