US 12,305,261 B2
Ni-based superalloy powder for additive manufacturing and an article made therefrom
Ning Zhou, Sinking Spring, PA (US); Kyle B. Stritch, Wyomissing, PA (US); Tao Wang, Reading, PA (US); Stephane A. J. Forsik, Reading, PA (US); Gian A. Colombo, Shillington, PA (US); Samuel J. Kernion, Lancaster, PA (US); Mario E. Epler, Denver, PA (US); and Austin Dicus, East Earl, PA (US)
Assigned to CRS HOLDINGS, LLC, Wilmington, DE (US)
Filed by CRS HOLDINGS, LLC, Wilmington, DE (US)
Filed on May 17, 2022, as Appl. No. 17/663,736.
Application 17/663,736 is a continuation of application No. 16/750,745, filed on Jan. 23, 2020, abandoned.
Claims priority of provisional application 62/795,618, filed on Jan. 23, 2019.
Prior Publication US 2022/0349032 A1, Nov. 3, 2022
Int. Cl. C22C 19/05 (2006.01); B22F 10/38 (2021.01); B22F 10/64 (2021.01); B33Y 70/00 (2020.01); C22C 1/04 (2023.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01)
CPC C22C 1/0433 (2013.01) [B22F 10/38 (2021.01); B22F 10/64 (2021.01); B33Y 70/00 (2014.12); C22C 19/057 (2013.01); B22F 10/28 (2021.01); B22F 10/36 (2021.01); B22F 10/366 (2021.01)] 10 Claims
 
1. A high γ′ volume fraction Ni-base alloy for laser and electron beam additive manufacturing processes, said alloy consisting essentially of, in weight percent,
 
 
 
 C   0-0.1
 
 Mn 0.5 max.
 
 Si   0-0.03
 
 Cr  8-11
 
 Fe   1 max.
 
 Mo 2-5
 
 W 0.5-6  
 
 Co 4-6
 
 Al 3-5
 
 Nb 3.86-5  
 
 Ta 7.5-9.5
 
 Hf   0-1.5
 
 Zr   0-0.1
 
 Ru 0-1
 
 B   0-0.03
 
 
and the balance of the alloy is nickel and impurities found in commercial grades of Ni-base superalloys intended for the same use and service, said impurities including not more than 0.03% P, and not more than 0.01% each of S, O, and N; wherein
% W+% Mo+% Ru+% Re≤10;
10.5≤% Nb+% Ta≤14.5;
wherein the alloy excludes titanium and rhenium; and
wherein the alloy contains at least 50% nickel.