IP Library Granted Patent US 9,821,372
Granted Patent B2
US 9,821,372 · App. 14/122,246 · Granted Nov 21, 2017

FeNi binder having universal usability

Inventor: Benno Gries (Wolfenbuettel, DE)
Assignee: H. C. STARCK GMBH
B22F1/007C22C19/00C22C29/00C22C29/005C22C29/06C22C29/067C22C38/08
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Quick Facts
Patent No.
US 9,821,372
App. No.
14/122,246
Granted
Nov 21, 2017
Kind
B2
Abstract

A method for producing a composite material includes providing a composition comprising at least one hardness carrier and a base binder alloy, and sintering the composition. The base binder alloy comprises from 66 to 93 wt.-% of nickel, from 7 to 34 wt.-% of iron, and from 0 to 9 wt.-% of cobalt, wherein the wt.-% proportions of the base binder alloy add up to 100 wt.-%.

Claims (32)

1. A method for producing a composite material, the method comprising:

providing a composition comprising:

a) from 92 to 97 wt.-% of at least one hardness carrier; and

b) from 3 to 8 wt.-% of a base binder alloy consisting of:

from 80 to 93 wt.-% of nickel,

from 7 to 20 wt.-% of iron,

from 0 to 9 wt.-% of cobalt, and

up to 13 wt.-% of one or more elements selected from the group consisting of W, Mo, V, Ta, Nb, Zr, Hf, Re, Ru, B, N and C,

wherein the wt.-% proportions of the base binder alloy add up to 100 wt.-% and the wt.-% proportions of the at least one hardness carrier and the base binder alloy add up to 100 wt.-%;

and,

sintering the composition,

wherein,

the at least one hardness carrier is selected from the group consisting of a carbide, a nitride, a boride, and a carbonitride, and

the at least one hardness carrier comprises at least one element of the transition groups 4A, 5A and 6A of the Periodic Table of Elements.

2. The method as recited in claim 1 , wherein a weight ratio of iron:nickel in the base binder alloy is from 1:4 to 1:7.

3. The method as recited in claim 1 , wherein the base binder alloy comprises from 80 to 90 wt.-% of nickel.

4. The method as recited in claim 1 , wherein the base binder alloy contains less than 8 wt.-% of cobalt.

5. The method as recited in claim 1 , wherein the base binder alloy contains less than 0.1 wt.-% of molybdenum.

6. The method as recited in claim 1 , wherein the at least one hardness carrier is selected from the group consisting of a carbide, a nitride, a boride, and a carbonitride.

7. The method as recited in claim 1 , further comprising:

a) providing a dispersion comprising the composition in a solvent;

b) milling the dispersion so as to produce a milled dispersion;

c) drying the milled dispersion so as to produce a powder;

d) pressing the powder so as to produce a compact or extruding the powder with the aid of a plasticizing agent so as to produce an extrudate; and

e) sintering the compact or the extrudate.

8. A sintered composite material obtainable by the method recited in claim 7 .

9. A method of using the sintered composite material as recited in claim 8 for a tool or a part, the method comprising:

providing a tool or a part comprising the sintered composite material as recited in claim 8 ; and

using the tool or the part in at least one of a forming step, a comminution step, a cutting step, a machining step, a forging step, a wire drawing step, and a rolling step.

10. The method of using as recited in claim 9 , wherein the tool is a form tool or a comminution tool.

11. The method of using as recited in claim 9 , wherein the tool is a tool configured to cut/machine a metallic tool or to form a metal workpiece at a high temperature.

12. The method of using as recited in claim 11 , wherein the tool is configured to forge, to draw a wire, or to roll.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 29, 2018
From: H.C. STARCK GMBH
To: H.C. STARCK SURFACE TECHNOLOGY AND CERAMIC POWDERS GMBH
Reel/Frame 045382/0361 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2013
From: GRIES, BENNO, MR.
To: H.C. STARCK GMBH
Reel/Frame 031673/0829 →
Priority Claims (1)
EP 11167901 · May 27, 2011 · regional
Continuity (1)
Related Publication 20140086782A1 · Mar 27, 2014