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:
Jul. 24, 1984
Filed:
Jun. 24, 1981
Kenneth Harris, Spring Lake, MI (US);
Cannon-Muskegon Corporation, Muskegon, MI (US);
Abstract
An improved alloy for use in directional solidification casting is disclosed in which the proportions of carbon, zirconium, tungsten and molybdenum have been changed to produce a new ultra high strength casting alloy free of the problem of grain boundary cracking which has been encountered in the production of directional solidification castings of this type of alloy and to minimize M.sub.6 C plate phase formation in turbine blades under high temperature conditions over extended operating periods. In addition there is disclosed the unexpected characteristic of the alloy's substantial increase in fracture toughness and tensile ductility under extreme operating conditions.