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US 11,898,227 B2Granted
Hard nickel-chromium-aluminum alloy for oilfield services apparatus and methods
AssigneeSchlumberger Technology Corporation
InventorManuel Marya
Life of this patent
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Abstract
An environmentally resistant alloy is disclosed having a transition metal that upon being included in the Ni Cr Al alloy causes no liquid phases below 1310° C., creates over 45% of a gamma phase above 900° C. up to 1310° C., creates over 30% comprised of a gamma prime phase between 450° C. and 600° C., and wherein the gamma prime phase is characterized by a formula (Ni,Co)x(Cr,Al,Mo)y wherein x and y are integers.
Claims20
A cermet material, comprising:
- a ceramic material;
- and
- an alloy material comprising a transition metal included in a Ni Cr Al alloy that causes no liquid phase below 1310° C., creates over 45% of a gamma phase above 900° C. up to 1310° C., and creates over 30% comprised of a gamma prime phase between 450° C. and 600° C., and the gamma prime phase is characterized by a formula (Ni,Co)x(Cr,Al,Mo)y, wherein x and y are integers, wherein an amount of the Al in the alloy material is 3.1 weight percent to 5.1 weight percent, wherein the transition metal comprises at least one of Co, Mo, and W, wherein a weight percent of the alloy material in the cermet material is 40%, and wherein a ratio of an amount of the ceramic material to an amount of the alloy material is less than 1.5.
A cermet material comprising:
- ceramic particulates;
- and
- an alloy binder placed within the ceramic particulates, the alloy binder comprising a transition metal included in a Ni Cr Al alloy causes no liquid phase below 1310° C., creates over 45% of a gamma phase above 900° C. up to 1310° C., and creates over 30% comprised of a gamma prime phase between 450° C. and 600° C., wherein the gamma prime phase is characterized by a formula (Ni,Co)x(Cr,Al,Mo)y wherein x and y are integers, wherein an amount of the Al in the alloy binder is 3.1 to 5.1 weight percent, wherein the transition metal comprises at least one of Co, Mo and W, wherein a weight percent of the alloy binder in the cermet material is 40%, and wherein a weight ratio of the ceramic particulates to the alloy binder is 1.5 or less.
A cermet material, comprising:
- tungsten carbide particulates;
- and
- an alloy binder placed within the tungsten carbide particulates, the alloy binder comprising a transition metal included in a Ni Cr Al alloy that causes no liquid phase below 1310° C., creates over 45% of a gamma phase above 900° C. up to 1310° C., and creates over 30% comprised of a gamma prime phase between 450° C. and 600° C., wherein the gamma prime phase is characterized by a formula (Ni,Co)x(Cr,Al,Mo)y wherein x and y are integers, wherein an amount of the Al in the alloy binder is 3.1 to 5.1 weight percent, wherein the transition metal comprises at least one of Co, Mo, and W, wherein a weight percent of the alloy binder in the cermet material is 40%, and wherein a weight ratio of the tungsten carbide particulates to the alloy binder is 1.5 or less.
Dependencies are inferred from the claim text.