High strength powder metallurgy nickel base alloy
AssigneeHoneywell International Inc.
InventorsHoward Merrick, Raymond C. Benn, Prabir R. Bhowal
Life of this patent
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Abstract
A nickel base super alloy composition wherein the ratio of molybdenum to tungsten or to the sum of tungsten and rhenium, 1 M o W o r , M o W + R e Is in the range of about 0.25 to about 0.5 weight percent.
Claims29
An alloy composition comprising:
- Ni, Co, Cr, Mo, W, Re, Al, Ti, Ta, Nb, C, B, Zr, O and N,
- wherein the weight ratio of Mo to (W+Re) is in the range of about 0.25-0.5.
The composition of claim I comprising about 1.0 wt % Re.
A process of making a bonded dual alloy turbine disk comprising the steps of providing first and second turbine disks each constructed from an alloy composition comprising Ni, Co, Cr, Mo, W, Re, Al, Ti, Ta, Nb, C, B, Zr, O and N, wherein the weight ratio of Mo to (W+Re) is in the range of about 0.25-0.5;
- bonding the first and second disks, wherein the bond interface is capable of being inspected by non-destructive inspection techniques.
An alloy composition comprising:
- Ni, Co, Cr, Mo, W, Al, Ti, Ta, Nb, C, B, Zr, O and N, wherein the weight ratio of Mo to W is in the range of about 0.25-0.5.
A process of making a bonded dual alloy turbine disk comprising the steps of providing first and second turbine disks each constructed from an alloy composition comprising Ni, Co, Cr, Mo, W, Al, Ti, Ta, Nb, C, B, Zr, O and N, wherein the weight ratio of Mo to W is in the range of about 0.25-0.5;
- bonding the first and second disks, wherein the bond interface is capable of being inspected by non-destructive inspection techniques.
Dependencies are inferred from the claim text.