The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 1983
Filed:
Aug. 07, 1981
Theodore J Louzon, Bridgewater, NJ (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
Alloys comprising copper, nickel and tin, when appropriately processed, exhibit high levels of tensile strength and ductility. Processing has been by cold working and aging or, when cold working is impracticable, by aging of alloys which are modified by the addition of a refractory element. It has been discovered that, even without cold working and even in the absence of additives, strong and ductile Cu-Ni-Sn alloys can be produced when a body of the alloy is subjected to a characteristic heat treatment to develop an alpha plus essentially nonlamellar gamma structure. This is followed by cooling and aging at a temperature and for a time corresponding to a predominantly spinodal alpha-1 plus alpha-2 structure. Typical properties are a 0.01 percent offset yield strength of 128 Kpsi and an elongation to fracture of 5 percent in an alloy comprising 15 weight percent Ni, 8 weight percent Sn, and remainder essentially Cu.