# US 8,771,398 B2 · Nickel braze alloy composition

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- Number: US 8,771,398 B2
- Document ID: US8771398B2
- Status: Granted
- Kind: B2
- Application number: 13/590,252
- Filed: 2012-08-21
- Published: 2012-12-06
- Granted: 2014-07-08
- Earliest claimed: 2009-01-30
- Assignees: United Technologies Corporation
- Applicants: Michael Minor
- Inventors: Michael Minor
- Web page: https://patentgrep.com/patent/US8771398B2

## CPC

- C22C 30/00: Alloys containing less than 50% by weight of each constituent
- C22C 19/05: with chromium
- C22C: ALLOYS (treatment of alloys C21D, C22F)

## Abstract

An alloy composition includes a blend of a first alloy and a second, different alloy. The blend has a combined composition including about 17.2 wt %-24.25 wt % of chromium, about 6 wt %-10.51 wt % of aluminum, about 3 wt %-23 wt % of cobalt, about 1.5 wt %-3.6 wt % of silicon, about 0.1 wt %-0.175 wt % of boron, up to about 0.163 wt % of hafnium, about 0.075 wt %-0.7 wt % of yttrium, and a balance of nickel.

## Claims

### Claim 1

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend consisting of 24.25 wt % of chromium, 6 wt % of aluminum, 3 wt % of cobalt, 3 wt % of tantalum, 6 wt % of tungsten, 1.5 wt % of silicon, 0.125 wt % of boron, 0.75 wt % of hafnium, 0.075 wt % of yttrium, and the balance of nickel.

### Claim 2

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 22 wt % of chromium, 8.8 wt % of aluminum, 3.6 wt % of cobalt, 1.8wt% of silicon, 0.15 wt % of boron, 0.7 wt % of yttrium, and the balance of nickel.

### Claim 3

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 19.5 wt % of chromium, 9.85 wt % of aluminum, 15.2 wt % of cobalt, 2.3 wt % of silicon, 0.175 wt % of boron, 0.125 wt % of hafnium, 0.45 wt % of yttrium, and the balance of nickel.

### Claim 4

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 17.2 wt % of chromium, 10.5 wt % of aluminum, 22.9 wt % of cobalt, 3 wt % of silicon, 0.14 wt % of boron, 0.163 wt % of hafnium, 0.4 wt % of yttrium, and the balance of nickel.

### Claim 5

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 17.25 wt % of chromium, 8.875 wt % of aluminum, 21.35 wt % of cobalt, 3.6 wt % of silicon, 0.1 wt % of boron, 0.088 wt % of hafnium, 0.36 wt % of yttrium, and the balance of nickel.

### Claim 6

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 21.5 wt % of chromium, 7.75 wt % of aluminum, 12 wt % of cobalt, 2.2 wt % of silicon, 0.175 wt % of boron, 0.036 wt % of hafnium, 0.258 wt % of yttrium, and the balance of nickel.

### Claim 7

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 21.75 wt % of chromium, 8.19 wt % of aluminum, 16.1 wt % of cobalt, 2.12 wt % of silicon, 0.175 wt % of boron, 0.013 wt % of hafnium, 0.132 wt % of yttrium, and the balance of nickel.

### Claim 8

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 19.8 wt % of chromium, 9.2 wt % of aluminum, 9.9 wt % of cobalt, 2.7 silicon, 0.1 wt % of boron, 0.7 wt % of yttrium, and the balance of nickel.

### Claim 9

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 18.75 wt % of chromium, 10.23 wt % of aluminum, 18.5 wt % of cobalt, 2.36 wt % of silicon, 0.175 wt % of boron, 0.163 wt % of hafnium, 0.39 wt % of yttrium, and the balance of nickel.

### Claim 10

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 20.85 wt % of chromium, 7.95 wt % of aluminum, 10.8 wt % of cobalt, 2.22 wt % of silicon, 0.175 wt % of boron, 0.075 wt % of hafnium, 0.355 wt % of yttrium, and the balance of nickel.

### Claim 11

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition consisting of 22.75 wt % of chromium, 6 wt % of aluminum, 3 wt % of cobalt, 1.5 wt % of silicon, 0.125 wt % of boron, 0.375 wt % of yttrium, and the balance of nickel.

### Claim 12

An alloy composition comprising:
a blend of a first alloy and a second, different alloy, the blend having a combined composition including about 17.2 wt %-24.25 wt % of chromium, about 6 wt %-10.51 wt % of aluminum, about 3 wt %-23 wt % of cobalt, about 1.5 wt %-3.6 wt % of silicon, about 0.1 wt %-0.175 wt % of boron, about 0.075 wt %-0.7 wt % of yttrium, 0.013 wt %-0.088 wt % of hafnium, and a balance of nickel.