US 11,865,641 B1
Additively manufactured single-crystal metallic components, and methods for producing the same
John H. Martin, Oxnard, CA (US); Jacob M. Hundley, Thousand Oaks, CA (US); and Brennan D. Yahata, Los Angeles, CA (US)
Assigned to HRL Laboratories, LLC, Malibu, CA (US)
Filed by HRL Laboratories, LLC, Malibu, CA (US)
Filed on Jun. 17, 2019, as Appl. No. 16/442,614.
Claims priority of provisional application 62/741,023, filed on Oct. 4, 2018.
Int. Cl. C30B 29/52 (2006.01); B23K 26/342 (2014.01); B23K 9/04 (2006.01); B23K 26/06 (2014.01); B23K 26/073 (2006.01); C30B 13/32 (2006.01); C30B 19/08 (2006.01); C30B 13/24 (2006.01); C30B 13/06 (2006.01); C30B 29/68 (2006.01); B22F 3/10 (2006.01); B22F 10/10 (2021.01); B33Y 80/00 (2015.01); C30B 29/00 (2006.01); B33Y 70/00 (2020.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01)
CPC B23K 26/342 (2015.10) [B22F 3/1028 (2013.01); B22F 10/10 (2021.01); B23K 9/044 (2013.01); B23K 26/0604 (2013.01); B23K 26/0734 (2013.01); B33Y 80/00 (2014.12); C30B 13/06 (2013.01); C30B 13/24 (2013.01); C30B 13/32 (2013.01); C30B 19/08 (2013.01); C30B 29/00 (2013.01); C30B 29/52 (2013.01); C30B 29/68 (2013.01); B22F 2999/00 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12)] 9 Claims
OG exemplary drawing
 
1. A single-crystal metallic article comprising:
(a) a build plate comprising a build region consisting of a seed single crystal of a nickel alloy or a cobalt alloy; and
(b) a plurality of solid layers forming a component single crystal of said nickel alloy or said cobalt alloy,
wherein said component single crystal is disposed on said build region,
wherein said component single crystal is produced via additive manufacturing in an additive-manufacturing build direction,
wherein said component single crystal, on length scales of 100 μm along said additive-manufacturing build direction, contains crystallographic misorientations that are less than 5 degrees on average,
wherein said build region and said plurality of solid layers form a continuous crystallographic texture, and
wherein said seed single crystal and said component single crystal form one continuous crystal.