	US 12,000,025 B2
	Powder composition for additive manufacturing
Satyajeet Sharma, Charlotte, NC (US)
Assigned to Satyajeet Sharma, Charlotte, NC (US)
Appl. No. 17/050,802
Filed by Satyajeet Sharma, Charlotte, NC (US)
PCT Filed Apr. 25, 2019, PCT No. PCT/IB2019/053413 § 371(c)(1), (2) Date Oct. 26, 2020, PCT Pub. No. WO2019/207518, PCT Pub. Date Oct. 31, 2019.
Claims priority of provisional application 62/662,352, filed on Apr. 25, 2018.
Claims priority of application No. 102019002231.9 (DE), filed on Mar. 28, 2019.
Prior Publication US 2021/0086259 A1, Mar. 25, 2021
Int. Cl. C22C 19/05 (2006.01); B22F 1/00 (2022.01); B22F 10/00 (2021.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01)

CPC C22C 19/056 (2013.01) [B22F 1/00 (2013.01); B22F 10/00 (2021.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); B22F 2301/15 (2013.01)]

2 Claims

1. A Ni-based alloy powder comprising a composition corresponding to a modified 738LC alloy powder, wherein the composition comprises:

Chromium between 15.7 and 16.3 wt %,

Cobalt between 8 and 9 wt %,

Aluminum between 3.2 and 3.7 wt %,

Titanium between 3.2 and 3.7 wt %,

Tungsten between 2.4 and 2.8 wt %,

Tantalum between 1.5 and 2 wt %,

Molybdenum between 1.5 and 2 wt %,

Niobium between 0.6 and 1.1 wt %,

Carbon between 0.09 and 0.13 wt %,

Zirconium between 0.03 and 0.08 wt %,

Boron at most 0.007 wt %,

Iron between 3.5 and 4 wt %,

Copper at most 0.1 wt %,

Manganese at most 0.02 wt %,

Silicon at most 0.03 wt %,

Phosphorus at most 0.015 wt %,

Sulfur at most 0.006 wt %

Oxygen at most 0.03 wt %,

Nitrogen at most 0.08%,

Total all others at most 0.15 wt %, and

remainder Nickel;

wherein the powder comprises a total of 6.5 to 7.2 wt % Aluminum and Titanium.