Nonmagnetic material for producing parts or coatings adapted for high wear and corrosion intensive applications, nonmagnetic drill string component, and method for the manufacture thereof
In order to provide a nonmagnetic material for producing parts or coatings adapted for highly wear and corrosion intensive applications, said material comprising preformed particles made of tungsten carbide which are embedded in a metal phase made of a Ni-based alloy. It is suggested that the weight portion of said tungsten carbide particles is in the range between 30 wt. % and 65 wt. % and wherein the Ni-based alloy is a Nickel-Chromium-Molybdenum alloy comprising: (in wt. %): Cr 11.0.-30.0 Mo 5.0-25.0 Fe 0-10.0 B 0-5.0 Co 0-2.5.
1. A nonmagnetic material for producing parts or coatings adapted for highly wear and corrosion intensive applications, said material comprising preformed tungsten carbide particles which are embedded in a metal phase made of a Ni-based alloy, wherein the weight portion of said preformed tungsten carbide particles is in the range between 30 wt. % and 65 wt. % and wherein the Ni-based alloy is a Nickel -Chromium-Molybdenum alloy comprising: in wt. %, balance =Ni:
C 0.06-0.2
Co 0-1.5
Cr 18.6-21.1
Mo 11.9-13.9
Fe 2.2-5.6
Mn 0-0.3
Si 1.74-1.95
V 0-0.21
W 1.5-2.1
Cu 0.84-1.12
B 1.12-1.2
P 0-2.0
N 0-1.0.
2. A material according to claim 1 , wherein the weight portion of the preformed spherical tungsten carbide particles is in a range between 55 weight percent and 65 weight percent.
3. A material according to claim 1 , wherein the preformed spherical tungsten carbide particles have a mean particle size in the range between 50 μm and 180 μm.
4. A material according to claim 1 , wherein the preformed tungsten carbide particles are preformed fused tungsten carbide particles and their weight portion is in the range between 30 wt. % and 50 wt. %.
5. A material according to claim 1 , wherein preformed tungsten carbide particles have a mean particle size in the range between 25 μm and 250 μm.
6. A material according to claim 1 wherein at least a part of the tungsten carbide particles are preformed spherical tungsten carbide particles.
7. A material according to claim 6 , wherein the weight portion of the preformed spherical tungsten carbide particles is in the range between 50 wt. % and 65 wt. %.
8. A material according to claim 6 , wherein the weight portion of the preformed spherical tungsten carbide particles is in a range between 55 weight percent and 65 weight percent.