Method for making steel or titanium products containing a precipitation-hardening nickel-base alloy, and part

Patent metadata

Field	Value
Publication number	US-2018274366-A1
Application number	US-201615763298-A
Country	US
Kind code	A1
Filing date	Sep 9, 2016
Priority date	Oct 7, 2015
Publication date	Sep 27, 2018
Grant date	—

Abstract

Combining a precipitation-hardening nickel-base alloy with a steel or titanium substrate makes it very easy to repair parts, the nickel-base alloy having good erosion-resistant properties. A method for producing is disclosed. In particular for repairing, a component having a substrate, in particular turbine blades made of steel or titanium, in particular made of martensitic or precipitation-hardening chromium-rich steels, with a localized deposition weld or with an affixed shaped part, in which a precipitation-hardening nickel-based alloy is used as the localized deposition weld or as the shaped part, in which a laser powder deposition weld or an arc deposition weld is performed.

First claim

1 - 9 . (canceled)

10 . A method for producing or for repairing, a component having a substrate, wherein the substrate is a turbine blades made of steel or titanium, made of martensitic or precipitation-hardening chromium-rich steels, with a localized deposition weld or with an affixed shaped part, in which a precipitation-hardening nickel-based alloy is used as the localized deposition weld or as the shaped part, in which a laser powder deposition weld or an arc deposition weld is performed.

11 . A component, in particular produced having a substrate made of steel or titanium made of martensitic or precipitation-hardening chromium-rich steels, and having only locally material of a precipitation-hardening nickel-based alloy, in which a laser powder deposition weld or an arc deposition weld is performed.

12 . The method or component as claimed in claim 10 , in which a shaped part made of a precipitation-hardening nickel-based alloy is connected to the substrate.

13 . The method or component as claimed in claim 10 , in which the shaped part made of a precipitation-hardening nickel-based alloy is brazed into or onto the substrate ( 4 ).

14 . The method or component as claimed in claim 10 , in which the precipitation-hardening nickel-based alloy has a chromium content of 10 wt % to 21 wt % and/or a niobium content of 0.1 wt % to 5.5 wt % and/or a molybdenum content of 0.1 wt % to 3.3 wt %, in particular has IN 718.

15 . The method or component as claimed in claim 1 , having a γ′ fraction≤50%, for the precipitation-hardened nickel-based alloy.

16 . The method or component as claimed in claim 1 , in which the deposition weld has just one layer.

17 . The method or component as claimed in claim 1 , in which X 20 Cr 13 , X 5 CrNiCuNb 16 −4 or TiAl 6 V 4 is used as the material for the substrate.

Assignees

• Siemens Ag

Inventors

• Bettentrup Jörn
• Brussk Stefan
• Luithle Alexander
• Schürhoff Jörg

Classifications

• B23K2201/001

  Operations & Transport · mapped topic

• B23K1/0018

  Brazing of turbine parts · CPC title

• B23P6/007

  using only additive methods, e.g. build-up welding · CPC title

• B23K9/04

  Welding for other purposes than joining, e.g. built-up welding · CPC title

• F01D5/28

  Selecting particular materials; {Particular measures relating thereto;} Measures against erosion or corrosion · CPC title