Invention Grant
- Patent Title: Functionally graded metal-metal composite structures
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Application No.: US14463836Application Date: 2014-08-20
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Publication No.: US09764386B2Publication Date: 2017-09-19
- Inventor: Craig A. Brice
- Applicant: The United States of America represented by the Administrator of the National Aeronautics and Space Administration
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Administrator of NASA
- Current Assignee: The United States of America as represented by the Administrator of NASA
- Current Assignee Address: US DC Washington
- Agent Jennifer L. Riley; Robin W. Edwards; Mark P. Dvorscak
- Main IPC: B22F7/02
- IPC: B22F7/02 ; B22F3/24

Abstract:
Methods and devices are disclosed for creating a multiple alloy composite structure by forming a three-dimensional arrangement of a first alloy composition in which the three-dimensional arrangement has a substantially open and continuous porosity. The three-dimensional arrangement of the first alloy composition is infused with at least a second alloy composition, where the second alloy composition comprises a shape memory alloy. The three-dimensional arrangement is consolidated into a fully dense solid structure, and the original shape of the second alloy composition is set for reversible transformation. Strain is applied to the fully dense solid structure, which is treated with heat so that the shape memory alloy composition becomes memory activated to recover the original shape. An interwoven composite of the first alloy composition and the memory-activated second alloy composition is thereby formed in the multiple alloy composite structure.
Public/Granted literature
- US20150056464A1 Functionally Graded Metal-Metal Composite Structures Public/Granted day:2015-02-26
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