IP Library Granted Patent US 7,799,271
Granted Patent B2
US 7,799,271 · App. 11/752,584 · Granted Sep 21, 2010

Ni-base wear and corrosion resistant alloy

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Quick Facts
Patent No.
US 7,799,271
App. No.
11/752,584
Granted
Sep 21, 2010
Kind
B2
Abstract

Nickel base alloys for use in applications for highly corrosive and abrasive environments. The alloys contain a large volume fraction of metallic carbide particles that provide wear and abrasion resistance. The alloys are produced by induction melting and gas atomization to form alloy powder particles. The particles are consolidated by hot isostatic pressing to form a solid article.

Claims (16)

1. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—2%-5.5%; chromium—16%-22.5%; vanadium—10%-20%; molybdenum—8%-13%; cobalt—6%-12%; titanium—2.5%-5%; aluminum—1%-2.5%; zirconium—up to 1.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

2. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—4%-5%; chromium—20%-23%; vanadium—12%-15%; molybdenum—10%-12.5%; cobalt—6.5%-8.0%; titanium—4%-6%; aluminum—1.5%-2.5%; zirconium—up to 1.2%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

3. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—5%-6%; chromium—19%-21%; vanadium—18%-20%; molybdenum—8.5%-10.5%; cobalt—6%-8%; titanium—4%-5%; aluminum—1.5%-2.5%; zirconium—up to 2%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

4. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—2%-3%; chromium—17%-19%; vanadium—11%-13%; molybdenum—8%-10%; cobalt—9%-11%; titanium—2.5%-4%; aluminum—1%-2%; zirconium—up to 0.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

5. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—2.5%-3.5%; chromium—15.5%-18%; vanadium—14%-16%; molybdenum—8%-10%; cobalt—8%-10%; titanium—2.5%-4%; aluminum—1%-2%; zirconium—up to 0.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

6. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—3.25%-4.25%; chromium—21%-23%; vanadium—14%-16%; molybdenum—11%-13%; cobalt—7%-9%; titanium—3%-4%; aluminum—1%-2%; zirconium—up to 0.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

7. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—2%-3%; chromium—19%-21%; vanadium—11%-13%; molybdenum—11%-12%; cobalt—10%-12%; titanium—2.5%-4%; aluminum—1%-2%; zirconium—up to 0.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

8. A nickel based wear and corrosion resistant alloy consisting essentially of in weight percent:

carbon—2.25%-3.25%; chromium—19%-21%; vanadium—12%-14%; molybdenum—11%-13%; cobalt—9%-11%; titanium—3%-4.5%; aluminum—1%-2%; zirconium—up to 0.5%; silicon—up to 0.5%; and balance essentially nickel and incidental impurities.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 26, 2010
From: CRUCIBLE MATERIALS CORPORATION
To: COMPACTION & RESEARCH ACQUISITION LLC
Reel/Frame 024160/0493 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 17, 2010
From: CRUCIBLE MATERIALS CORPORATION
To: ALLEGHENY TECHNOLOGIES INCORPORATED
Reel/Frame 023937/0882 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 9, 2009
From: CRUCIBLE MATERIALS CORPORATION
To: COMPACTION & RESEARCH ACQUISITION LLC
Reel/Frame 023486/0068 →
CHANGE OF NAME Recorded Nov 9, 2009
From: COMPACTION & RESEARCH ACQUISITION LLC
To: ATI POWDER METALS LLC
Reel/Frame 023486/0089 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 23, 2007
From: WOJCIESZYNSKI, ANDRZEJ L.
To: CRUCIBLE MATERIALS CORPORATION
Reel/Frame 019334/0348 →