发明申请
US20080290141A1 Manufacture of Shape Memory Alloy Cellular Materials and Structures by Transient-Liquid Reactive Joining
有权
通过瞬态液体反应性连接制造形状记忆合金细胞材料和结构
- 专利标题: Manufacture of Shape Memory Alloy Cellular Materials and Structures by Transient-Liquid Reactive Joining
- 专利标题(中): 通过瞬态液体反应性连接制造形状记忆合金细胞材料和结构
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申请号: US11664016申请日: 2005-09-30
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公开(公告)号: US20080290141A1公开(公告)日: 2008-11-27
- 发明人: John A. Shaw , David S. Grummon
- 申请人: John A. Shaw , David S. Grummon
- 申请人地址: US MI Ann Arbor US MI East Lansing
- 专利权人: The Regents of the University of Michigan,Board of Trustees of Michigan State University
- 当前专利权人: The Regents of the University of Michigan,Board of Trustees of Michigan State University
- 当前专利权人地址: US MI Ann Arbor US MI East Lansing
- 国际申请: PCT/US05/35348 WO 20050930
- 主分类号: B23K31/02
- IPC分类号: B23K31/02 ; B23K1/00 ; C22F1/00 ; B32B3/12 ; A61F2/28 ; F16F7/00
摘要:
This invention discloses a method, using pure niobium as a transient liquid reactive braze material, for fabrication of cellular or honeycomb structures, wire space-frames or other sparse builtup structures or discrete articles using Nitinol (near equiatomic titanium-nickel alloy) and related shape-memory and superelastic alloys. Nitinol shape memory alloys (SMAs), acquired in a form such as corrugated sheet, discrete tubes or wires, may be joined together using the newly discovered technique. Pure niobium when brought into contact with Nitinol at elevated temperature, liquefies at temperatures below the melting point and flows readily into capillary spaces between the elements to be joined, thus forming a strong joint. A series of diagrams of the interface at various stages of brazing is illustrated by FIG. 10.