Components having tab members
A components comprising a plurality of tab members formed thereon are provided. The plurality of tab members include at least one dissimilar metallic layer applied to the component. The plurality of tab members are configured to extend away from or retract toward a surface of the component in response to a temperature change.
1. A component comprising a plurality of tab members formed thereon, wherein the plurality of tab members include at least one dissimilar metallic layer applied to the component, the plurality of tab members being configured to extend away from or retract toward a surface of the component in response to a temperature change wherein the tab member is sculpted into the component, is formed from a portion of the component and includes a cantiveler from the surface of the component.
2. The component of claim 1 , wherein the plurality of tab members include a portion of the component.
3. The component of claim 2 , wherein the at least one dissimilar metallic layer includes a first metallic layer and a second metallic layer.
4. The component of claim 1 , wherein the component and at least one dissimilar metallic layer are independently selected from the group consisting of nickel, iron, cobalt, stainless steel, aluminum, copper, magnesium, gold, platinum, MCrAlY, wherein M is Ni, Co, Fe, or combinations thereof, alloys thereof, and combinations thereof.
5. The component of claim 1 , wherein the component has a first coefficient of thermal expansion (α 1 ) and the at least one dissimilar metallic layer has a second coefficient of thermal expansion (α 2 ), wherein the difference between the first coefficient of thermal expansion (α 1 ) and the second coefficient of thermal expansion (α 2 ) is at least approximately 5% different.
6. The component of claim 1 , wherein the component has a first coefficient of thermal expansion (α 1 ) and the at least one dissimilar metallic layer has a second coefficient of thermal expansion (α 2 ), wherein the difference between the first coefficient of thermal expansion (α 1 ) and the second coefficient of thermal expansion (α 2 ) is at least approximately 1.1 times to approximately 2 times different.
7. The component of claim 5 , wherein the plurality of tab members are configured to extend away from the surface with an increasing temperature when the first coefficient of thermal expansion (α 1 ) of the component is greater than the second coefficient (α 2 ) of thermal expansion of the at least one dissimilar metallic layer.
8. The component of claim 5 , wherein the plurality of tab members are configured to retract toward the surface of the component with an increasing temperature when the first coefficient of thermal expansion (α 1 ) of the component is less than the second coefficient (α 2 ) of thermal expansion of the at least one dissimilar metallic layer.
9. A component comprising a plurality of tab members formed thereon, wherein the plurality of tab members include at least one dissimilar metallic layer applied to the component, the plurality of tab members being configured to extend away from or retract toward a surface of the component in response to a temperature change, wherein the at least one dissimilar metallic layer includes a first metallic layer applied to the component, a second metallic layer applied to the first metallic layer, and a third metallic layer applied to the second metallic layer and the tab member includes a fractured first metallic layer.
10. The component of claim 9 , wherein the first metallic layer is selected from the group consisting of nickel-aluminum, titanium-aluminum, nickel-chromium carbide, cobalt-chromium carbide, alloys thereof and combinations thereof.
11. The component of claim 9 , wherein the first metallic layer comprises a brittle material having a tensile elongation at failure of less than 10%, wherein the first metallic layer is configured to be broken when mechanical stress is applied to the at least one dissimilar metallic layer.
12. The component of claim 9 , wherein the first metallic layer has a porosity of approximately 0% by volume to approximately 50% by volume, wherein the first metallic layer is configured to be broken when mechanical stress is applied to the at least one dissimilar metallic layer.
13. The component of claim 9 , wherein the first metallic layer is applied using laser cladding, thermal spraying, chemical vapor deposition (CVD), plating, powder melting, laser sintering, galvanizing, direct writing, welding, cold spraying and combinations thereof.
14. The component of claim 9 , wherein a portion of the first metallic layer, the second metallic layer and the third metallic layer form the plurality of tab members.
15. The component of claim 9 , wherein a portion of the third metallic layer is removed from the second metallic layer to form a pattern.
16. A component comprising a plurality of tab members formed thereon, wherein the plurality of tab members include at least one dissimilar metallic layer applied to the component, the plurality of tab members being configured to extend away from or retract toward a surface of the component in response to a temperature change, wherein the component has a first coefficient of thermal expansion (α 1 ) and the at least one dissimilar metallic layer has a second coefficient of thermal expansion (α 2 ), wherein the difference between the first coefficient of thermal expansion (α 1 ) and the second coefficient of thermal expansion (α 2 ) is at least approximately 5% different, and wherein the tab member includes a fractured first metallic layer.
17. The component of claim 16 , wherein the at least one dissimilar metallic layer includes a first metallic layer, a second metallic layer and a third metallic layer.
18. The component of claim 17 , wherein the plurality of tab members are formed by applying mechanical stress to the at least one dissimilar metallic layer to form the plurality of tab members, wherein the plurality of tab members include a portion of the first metallic layer, the second metallic layer and the third metallic layer.
19. The component of claim 17 , wherein a portion of the third metallic layer is removed from the second metallic layer.
20. The component of claim 16 , wherein the plurality of tab members are formed by using a laser sculpting method, wherein the plurality of tab members include a portion of the component and at least one dissimilar metallic layer.