Hybrid Turbine Blade for Improved Engine Performance or Architecture
First Claim
Patent Images
1. A component comprising:
- a component body including at least a first section of a first material and a second section of a second material that differs from the first material in composition, the first section and the second section being metallurgically bonded to each other in a boundary zone (540;
540-1, 540-2) having a mixture of the first material and the second material.
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Abstract
A method is provided for casting an article such as a blade having an attachment root and an airfoil, the airfoil having a proximal end and a distal end. The method comprises introducing a molten alloy into a mold; and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation.
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Citations
26 Claims
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1. A component comprising:
a component body including at least a first section of a first material and a second section of a second material that differs from the first material in composition, the first section and the second section being metallurgically bonded to each other in a boundary zone (540;
540-1, 540-2) having a mixture of the first material and the second material.- View Dependent Claims (2)
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3. A method of casting, comprising:
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introducing a first molten alloy into a mold (210); partially solidifying the first molten alloy to form a solidified section, with a remaining molten portion on the solidified section; and introducing a second molten alloy into the mold such that the remaining molten portion and the second molten alloy at least partially mix, the first molten alloy and second molten alloy differing in chemistry. - View Dependent Claims (4, 5)
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6. A blade (60;
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60-2;
60-3) comprising;an attachment root (63); and an airfoil (61), the airfoil having a proximal end (68) and a distal end (69), wherein the blade has a compositional change between a first zone and a second zone, with a crystalline structure extending across the first zone and second zone. - View Dependent Claims (7)
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60-2;
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8. A method of casting a blade (60;
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60-2;
60-3), the blade having an attachment root (63) and an airfoil (61), the airfoil having a proximal end (68) and a distal end (69), the method comprising;introducing a molten alloy into a mold (210); and varying a composition of the introduced alloy during the introduction so as to produce a compositional variation. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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60-2;
Specification