High temperature alloy for casting engine valves
AssigneeCaterpillar Inc.
InventorsMark D. Veliz, Caian Qiu, Thomas J. Yaniak
Life of this patent
Estimating the term…
Abstract
A high temperature alloy is disclosed. The high temperature alloy may have on a weight basis: about 9.0-10.0 weight % of Co, about 0.25 weight % maximum of Fe, about 8.0-9.0 weight % of Cr, about 4.75-5.50 weight % of Al, about 1.0-1.5 weight % of Ti, about 0-2.0 weight % of Mo, about 6.0-9.0 weight %, of W, about 0.12-0.18 weight % of C, about 0.01-0.03 weight % of Zr, about 0.005-0.015 weight % of B, about 0.5-1.5 weight % of Ta, a balance of Ni, and incidental impurities.
Claims20
A high temperature alloy, comprising, on a weight basis:
- Co:
- 9.0-10.0 weight %,
- Cr:
- 8.0-9.0 weight %,
- Al:
- 4.75-5.50 weight %,
- Ti:
- 1.0-1.5 weight %,
- Mo:
- 0-2.0 weight %,
- W:
- 6.0-9.0 weight %,
- C:
- 0.12-0.18 weight %,
- Zr:
- 0.01-0.03 weight %,
- B:
- 0.005-0.015 weight %,
- Ta:
- 0.5-1.5 weight %, and
- a balance of Ni and incidental impurities.
A high temperature alloy, comprising, on a weight basis:
- Co:
- 4.0-7.0 weight %,
- Cr:
- 15.0-17.0 weight %,
- Al:
- 4.75-5.50 weight %,
- Ti:
- 0.75-1.5 weight %,
- Mo:
- 0-2.0 weight %,
- Nb:
- 0-0.7 weight %,
- W:
- 1.0-3.0 weight %,
- C:
- 0.12-0.18 weight %,
- Zr:
- 0.01-0.03 weight %,
- B:
- 0.005-0.015 weight %,
- Ta:
- 0.5-1.5 weight %, and
- a balance of Ni and incidental impurities.
A high temperature alloy, comprising, on a weight basis:
- Co:
- 3.0-7.5 weight %,
- Cr:
- 15.0-17.0 weight %,
- Al:
- 4.25-6.0 weight %,
- Ti:
- 0.75-2.0 weight %,
- Mo:
- 0-2.0 weight %,
- Nb:
- 0-0.75 weight %,
- W:
- 1.0-3.0 weight %,
- C:
- 0.12-0.18 weight %,
- Zr:
- 0.01-0.03 weight %,
- B:
- 0.005-0.015 weight %,
- Ta:
- 0.5-1.5 weight %, and
- a balance of Ni and incidental impurities.
Dependencies are inferred from the claim text.