Title: Processing for improved stress relaxation resistance in copper alloys exhibiting spinodal decomposition

Abstract: A process for providing copper base alloys with a combination of high strength and high strength to ductility characteristics is disclosed. The alloys should be those copper alloys which exhibit continuous, homogeneous precipitation of coherent particles such as spinodal decomposition upon precipitation hardening. The alloys are hot worked, solution annealed and subjected to a controlled cooling to provide the desirable strength-ductility combinations.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Caron, Ronald N. (Branford, CT, US)
Shapiro, Stanley (New Haven, CT, US)

Application Number: 743121
Filing Date: 1976-11-19
Publication_date: 1978-02-14
Assignee: Olin Corporation (New Haven, CT)
Primary Class(es): 148/682 148/411, 148/412, 148/413, 148/680
Other Classes:
US Patent Ref:

2783143	Feb, 1957	Johnson et al.	75/164.
2943960	Jul, 1960	Saanvirta	75/164.
3258334	Jun, 1966	Kessler	75/159.
3663311	May, 1972	Chin et al.	148/11.
4012240	Mar, 1977	Hinrichsen et al.	148/11.
4016010	Apr, 1977	Caron et al.	148/12.

Other Refs:
Primary Examiner: Stallard, W.
Assistant Examiner:
Attorney: Dawson; Robert A., Bachman; Robert H.