US 12,280,433 B2
Oxidation and wear resistant brazed coating
Surinder Singh Pabla, Greer, SC (US); Srikanth C. Kottilingam, Greenville, SC (US); David Vincent Bucci, Simpsonville, SC (US); and Biju Dasan, Bangalore (IN)
Assigned to GE Infrastructure Technology LLC, Greenville, SC (US)
Filed by GE Infrastructure Technology LLC, Greenville, SC (US)
Filed on Dec. 19, 2023, as Appl. No. 18/545,883.
Application 18/545,883 is a division of application No. 17/461,246, filed on Aug. 30, 2021, granted, now 11,865,622.
Prior Publication US 2024/0149341 A1, May 9, 2024
Int. Cl. B22F 7/08 (2006.01); B23K 1/00 (2006.01)
CPC B22F 7/08 (2013.01) [B23K 1/0018 (2013.01); B22F 2301/05 (2013.01); B22F 2301/15 (2013.01); B22F 2302/253 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A machine component comprising a material coating applied to a surface of the machine component, wherein the material coating comprises:
a first layer comprising a first plurality of phases of a hardfacing material and a second plurality of phases of a braze material; and
a second layer disposed on top of the first layer and comprising a third plurality of phases of an aluminum-containing material, wherein the aluminum-containing material is configured to oxidize to produce a self-limiting oxide layer having a thickness of 5 microns or less, wherein the self-limiting oxide layer is configured to reduce beta depletion of the hardfacing material, and wherein the braze material is configured to couple the first layer and the second layer to the surface of the machine component.