Accession Number : AD0474854

Title :   METALLURGY AND PROPERTIES OF THORIA-STRENGTHENED NICKEL.

Descriptive Note : Memorandum rept.,

Corporate Author : BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER

Personal Author(s) : Rice, Leonard P.

Report Date : 01 OCT 1965

Pagination or Media Count : 33

Abstract : This memorandum deals with the metallurgy and properties of thoria-strengthened nickel, a material which shows promise as a structural metal for use in the temperature range of 1900 to 2400 F where the present nickel- and cobalt-base superalloys lose most of their useful strength. Discussed in the memorandum are methods of producing dispersions in metals, and the processing variables involved in making dispersion-strengthened nickel. An entire section on the mechanical properties of thoria-strengthened nickel is included. Given in this section are tensile, creep-rupture, shear, and fatigue properties, as well as the effect of various thermal and mechanical treatments on the material. Physical-property data comprise one section of the memorandum, and oxidation resistance another. In a section on joining the following joining processes are discussed: resistance welding, flash welding, brazing, diffusion bonding by hot pressing, electron-beam welding, fusion welding, and others. In the last section of the memorandum the author presents an outlook for future developments of dispersion-strengthened nickel. (Author)

Descriptors :   (*NICKEL, DISPERSION HARDENING), TENSILE PROPERTIES, CREEP, RUPTURE, SHEAR STRESSES, FATIGUE(MECHANICS), HEAT TREATMENT, PHYSICAL PROPERTIES, CORROSION RESISTANCE, RESISTANCE WELDING, DIFFUSION BONDING, ELECTRON BEAM MELTING, BRAZING, FLASH WELDS, PROTECTIVE TREATMENTS, JOINING, NICKEL ALLOYS, MECHANICAL PROPERTIES.

Subject Categories : Properties of Metals and Alloys
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE