公开(公告)号：US11117208B2

公开(公告)日：2021-09-14

申请号：US15465170

申请日：2017-03-21

Applicant: Kennametal Inc.

Inventor： Martin G. Perez ,  Michael Meyer ,  Robert W. Monds ,  Loretta M. Bell

IPC: B23K1/00 ,  B22F1/00 ,  B23K35/02 ,  B23K35/30 ,  C22C19/03 ,  C22C19/07 ,  C22C30/00 ,  F01D5/28 ,  B23K101/00

Abstract: In one aspect, composite preforms are provided for imparting wear resistance to superalloy articles. The composite preforms can be employed for metallurgically bonding alloy wear plates or pads to superalloy articles. A composite preform, in some embodiments, comprises a powder alloy composition comprising 1-30 wt. % nickel, 0.05-2 wt. % iron, 15-25 wt. % chromium, 10-30 wt. % molybdenum, 0-1 wt. % carbon, 1-5 wt. % silicon, 0.05-2 wt. % boron, 0-5 wt. % tungsten, 0-3 wt. % tantalum, 0-0.1 wt % manganese, 0-3 wt. % aluminum, 0-0.1 wt % yttrium and the balance cobalt.

公开(公告)号：US20180272451A1

公开(公告)日：2018-09-27

申请号：US15465170

申请日：2017-03-21

Applicant: Kennametal Inc.

Inventor： Martin G. Perez ,  Michael Meyer ,  Robert W. Monds ,  Loretta M. Bell

IPC: B23K1/00 ,  B22F1/00 ,  B23K35/02 ,  B23K35/30 ,  C22C19/07 ,  C22C30/00 ,  C22C19/03 ,  F01D5/28

CPC classification number: B23K1/0018 ,  B22F1/0059 ,  B22F5/04 ,  B22F7/08 ,  B22F2007/068 ,  B22F2301/15 ,  B23K35/0244 ,  B23K35/3046 ,  B23K2101/001 ,  C22C1/0433 ,  C22C19/03 ,  C22C19/07 ,  C22C30/00 ,  C22C32/0094 ,  F01D5/286 ,  F05D2300/175 ,  F05D2300/177 ,  F05D2300/603

Abstract: In one aspect, composite preforms are provided for imparting wear resistance to superalloy articles. The composite preforms can be employed for metallurgically bonding alloy wear plates or pads to superalloy articles. A composite preform, in some embodiments, comprises a powder alloy composition comprising 1-30 wt. % nickel, 0.05-2 wt. % iron, 15-25 wt. % chromium, 10-30 wt. % molybdenum, 0-1 wt. % carbon, 1-5 wt. % silicon, 0.05-2 wt. % boron, 0-5 wt. % tungsten, 0-3 wt. % tantalum, 0-0.1 wt % manganese, 0-3 wt. % aluminum, 0-0.1 wt % yttrium and the balance cobalt.

公开(公告)号：US10967466B2

公开(公告)日：2021-04-06

申请号：US15492413

申请日：2017-04-20

Applicant: Kennametal Inc.

Inventor： Qingjun Zheng ,  Michael Meyer ,  Martin G. Perez ,  Abdelhakim Belhadjhamida

IPC: C22C19/05 ,  B23P6/04 ,  B23K1/00 ,  B23K35/02 ,  B23K35/30 ,  B23K101/00 ,  B23K103/08

Abstract: Methods of superalloy article repair are provided. In some embodiments, a method for repairing a nickel-based superalloy article comprises providing a layered assembly over a damaged region of the nickel-based superalloy article, the layered assembly comprising a nickel-based superalloy preform, an infiltration alloy preform and a melting point depressant component. The layered assembly is heated to form a nickel-based filler alloy metallurgically bonded to the damaged region, wherein primary carbide and secondary carbide phases are present in the nickel-based filler alloy in a combined amount of 0.5 to 10 vol. %.

公开(公告)号：US10391557B2

公开(公告)日：2019-08-27

申请号：US15165877

申请日：2016-05-26

Applicant: Kennametal Inc.

Inventor： James A. Faust ,  Daniel Bourlotos ,  Qingjun Zheng ,  Michael Meyer

IPC: B22F7/00 ,  B22F7/04 ,  B32B15/01 ,  E21B43/26 ,  E21B34/06 ,  B22F1/00 ,  B22F7/08 ,  B22F5/10 ,  B22F7/06

Abstract: In one aspect, composite articles are described herein employing cobalt-based alloy claddings exhibiting high hardness and wear resistance while maintaining desirable integrity and adhesion to surfaces of metallic substrates. A composite article, in some embodiments, comprises a metallic substrate and a composite cladding metallurgically bonded to one or more surfaces of the metallic substrate, the composite cladding including cobalt-based alloy having a chromium gradient, wherein chromium content increases in a direction from the composite cladding surface to an interface of the composite cladding with the metallic substrate.