US 11,780,007 B2
Method for manufacturing an aluminium alloy part by additive manufacturing from a mixture of powders containing yttria-stabilized zirconia
Mathieu Opprecht, Grenoble (FR); Jean-Paul Garandet, Grenoble (FR); Guilhem Roux, Grenoble (FR); and Mathieu Soulier, Grenoble (FR)
Assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed by COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris (FR)
Filed on May 12, 2020, as Appl. No. 16/872,469.
Claims priority of application No. 1904935 (FR), filed on May 13, 2019.
Prior Publication US 2020/0360993 A1, Nov. 19, 2020
Int. Cl. B22F 3/105 (2006.01); B33Y 70/10 (2020.01); B22F 10/28 (2021.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B22F 10/32 (2021.01); B22F 10/34 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01)
CPC B33Y 70/10 (2020.01) [B22F 3/105 (2013.01); B22F 10/28 (2021.01); B22F 10/32 (2021.01); B22F 10/34 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01); B22F 2202/11 (2013.01); B22F 2301/052 (2013.01); B22F 2301/058 (2013.01); B22F 2301/205 (2013.01); B22F 2301/45 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12)] 18 Claims
OG exemplary drawing
 
1. A method for manufacturing an aluminum alloy part by additive manufacturing, the method comprising:
locally melting a layer of a mixture of powders and then solidifying,
wherein the mixture of powders comprises:
85 to 98.5 vol. % of first particles comprising at least 80% by mass of aluminum and up to 20% by mass of one or more additional elements; and
1.5 to 2.5 vol. % of second particles comprising yttria-stabilized zirconia,
wherein the second particles have a largest dimension in a range of from 5 to 600 nm.