发明申请
US20090090438A1 Method and apparatus for making high strength metals with a face-centered-cubic structure
审中-公开
用于制造具有面心立方结构的高强度金属的方法和装置
- 专利标题: Method and apparatus for making high strength metals with a face-centered-cubic structure
- 专利标题(中): 用于制造具有面心立方结构的高强度金属的方法和装置
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申请号: US11906711申请日: 2007-10-03
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公开(公告)号: US20090090438A1公开(公告)日: 2009-04-09
- 发明人: Ke Han , Robert Walsh , David Embury
- 申请人: Ke Han , Robert Walsh , David Embury
- 主分类号: C21D6/04
- IPC分类号: C21D6/04 ; C22F1/00
摘要:
A process for increasing the strength of pure copper and other fcc matrix alloys. The method is particularly applicable to face-centered-cubic materials that undergo dynamic recovery when strain-hardened at room temperature. A cryogenic strain hardening process is used to create a high strength pure copper or copper+Al2O3 alloy. The strength of the material is substantially increased. However, the loss of conductivity is minimal. In the preferred embodiment, pure copper or a copper alloy is drawn into a wire at a temperature of about 77 K. Dynamic recovery of the material is substantially reduced. With this method, drawn copper wire exhibits a strength level about 45% higher than that achievable by an equivalent room temperature deformation.