With Casting Or Solidifying From Melt Patents (Class 148/538)
Centrifugal casting (Class 148/539)
Iron(fe) or iron base alloy (Class 148/540)
Aluminum(al) or aluminum base alloy (Class 148/549)
Copper(cu) or copper base alloy (Class 148/553)
Nickel(ni) or nickel base alloy (Class 148/555)
With working (Class 148/557)
  • High strength, light weight Ti-Y composites and method of making same
    Patent number: 5200004
    Abstract: A high strength, light weight "in-situ" Ti-Y composite is produced by deformation processing a cast body having Ti and Y phase components distributed therein. The composite comprises elongated, ribbon-shaped Ti and Y phase components aligned along an axis of the deformed body.
    Type: Grant
    Filed: December 16, 1991
    Date of Patent: April 6, 1993
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: John D. Verhoeven, Timothy W. Ellis, Alan M. Russell, Lawrence L. Jones
  • Process of producing continuously cast monotectic aluminum-silicon alloy strip and wire
    Patent number: 5192377
    Abstract: In a process of producing strip or wire, which consists of a monotectic aluminum-silicon alloy comprising a matrix consisting of aluminum and an aluminum-silicon eutectic system and as a minority phase 1 to 50% by weight lead or bismuth included in said matrix, which strip or wire has been continuously cast at a high casting velocity and a high cooling rate from a molten material which has been heated to a temperature above the segregation temperature, and which strip or wire has been subjected to plastic deformation and to a heat treatment, the minority phase which is embedded in the form of elongate platelets in the strip or wire is transformed to more compact shapes by a heat treatment at temperatures of 550.degree. to 600.degree. C.
    Type: Grant
    Filed: April 22, 1991
    Date of Patent: March 9, 1993
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Bruno Prinz, Alberto Romero, Ingrid Muller
  • Metal compression-spring gemstone mountings
    Patent number: 5188679
    Abstract: A precious metal alloy compression-spring gemstone mounting is made by casting or working a quantity of alloy to form a gemstone mounting in a desired configuration, followed by annealing and heat-treating the mounting to increase its yield strength. A stone is then placed in the mounting and is retained therein by compressive spring force.
    Type: Grant
    Filed: January 15, 1992
    Date of Patent: February 23, 1993
    Inventor: Steven D. Kretchmer
  • Metal alloy and method of preparation thereof
    Patent number: 5156806
    Abstract: Ternary metallic alloys of the formula Li.sub.x B.sub.y Mg.sub.z wherein 5.ltoreq.x.ltoreq.0.90, 0.05.ltoreq.y.ltoreq.0.90, 0.05.ltoreq.z.ltoreq.0.90, and x+y+z=1 and a method of preparing them. These alloys find use in areas where superlight weight, high specific strength (strength/weight ratio) and oxidation resistance are required.
    Type: Grant
    Filed: May 5, 1975
    Date of Patent: October 20, 1992
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Raymond A. Sutula, Frederick E. Wang
  • Near net shape processing of zirconium or hafnium metals and alloys
    Patent number: 5156689
    Abstract: Zirconium or hafnium tubeshells, billets and channel sheets are produced by plasma arc melting the metal to form a liquid metal pool. The pool is poured into a mold to form a near net shape. The near net shape is reduced to final size while maintaining the metal temperature below the alpha-beta transition temperature throughout the size reducing step.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: October 20, 1992
    Assignee: Westinghouse Electric Corporation
    Inventor: Steven C. Evans