Back to results
US 10,870,148 B2Granted
Aluminum alloy powder metal with transition elements
AssigneeGKN Sinter Metals, LLC
InventorsDonald Paul Bishop, Richard L. Hexemer, Jr., Ian W. Donaldson, Randy William Cooke
Life of this patent
Estimating the term…
Abstract
A transition element-doped aluminum powder metal and a method of making this powder metal are disclosed. The method of making includes forming an aluminum-transition element melt in which a transition element content of the aluminum-transition element melt is less than 6 percent by weight. The aluminum-transition element melt then powderized to form a transition element-doped aluminum powder metal. The powderization may occur by, for example, air atomization.
Claims9
A method of making a powder metal part, the method comprising:
- forming an aluminum-transition element melt consisting of a 2324 aluminum alloy with additions of transition elements of 1 weight percent iron and 1 weight percent nickel as a total weight percent of the aluminum-transition element melt;
- powderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal;
- and
- compacting and sintering the transition element-doped aluminum powder metal to form the powder metal part in which compacting and sintering the transition element-doped aluminum powder metal to form the powder metal part involves separately compacting the transition element-doped aluminum powder metal to form a compact and then subsequently sintering the compact, wherein the sintering consists of heating in a furnace environment to form the powder metal part;
- wherein a concentration of the transition elements in the powder metal part is equal to a concentration of the transition elements found in the transition element-doped aluminum powder metal used to form the powder metal part and wherein the concentration of the transition elements in the powder metal part is equal to a concentration of the transition elements found in the aluminum-transition element melt.
2 more elements
A method of making a powder metal part, the method comprising:
- forming an aluminum-transition element melt consisting of a 2324 aluminum alloy with additions of transition elements of 1 weight percent iron and 1 weight percent nickel as a total weight percent of the aluminum-transition element melt;
- powderizing the aluminum-transition element melt to form a transition element-doped aluminum powder metal in which a concentration of the transition elements in the transition element-doped aluminum powder metal is equal to a concentration of the transition elements found in the aluminum-transition element melt;
- and
- compacting and sintering a mixture consisting of the transition element-doped aluminum powder metal and at least one ceramic additive up to 15 volume percent to form the powder metal part in which compacting and sintering the transition element-doped aluminum powder metal and the at least one ceramic additive to form the powder metal part involves compacting the transition element-doped aluminum powder metal and the at least one ceramic additive to form a compact and then subsequently sintering the compact, wherein the sintering consists of heating in a furnace environment to form the powder metal part.
1 more element
A method of making a powder metal part, the method comprising:
- forming an aluminum-alloying element melt consisting of a 2324 aluminum alloy with additions of alloying elements of 1 weight percent iron and 1 weight percent nickel as a total weight percent of the aluminum-alloying element melt;
- powderizing the aluminum-alloying element melt to form an alloying element-doped aluminum powder metal wherein the alloying elements form an intermetallic phase with the aluminum and wherein the intermetallic phase is homogenously dispersed throughout alloying element-doped aluminum powder metal;
- and
- compacting and sintering the alloying element-doped aluminum powder metal to form the powder metal part in which compacting and sintering the alloying element-doped aluminum powder metal to form the powder metal part involves separately compacting the alloying element-doped aluminum powder metal to form a compact and then subsequently sintering the compact, wherein the sintering consists of heating in a furnace environment to form the powder metal part;
- wherein a concentration of the alloying elements in the powder metal part is equal to a concentration of the alloying elements found in the alloying element-doped aluminum powder metal used to form the powder metal part and wherein the concentration of the alloying elements in the powder metal part is equal to a concentration of the alloying elements found in the aluminum-alloying element melt.
2 more elements
Dependencies are inferred from the claim text.