Accession Number : AD0288127

Title :   DEPARTMENT OF DEFENSE REFRACTORY METALS SHEETROLLING PROGRAM

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

Personal Author(s) : OGDEN,H.R.

Report Date : 15 OCT 1962

Pagination or Media Count : 1

Abstract : The Nb program is nearing completion of laboratory tory rolling studiory materials, *Heat resistant alloys, *Sheets, Niobium alloys, Molybdenum alloys, Tantalum alloys, Tungsten alloys, Titanium alloys, Zirconium alloys, Tungsten, Powder metallurgy, Electric arcs, Manufacturing methods, Mechanical proper ies, Forging, Heat treatment, Melting, Extrusion, Deformation, Hardness, Rolling mills, Processing. Identifiers: Floturning. The Nb program is nearing completion of laboratory tory rolling studies, and a single composition for larger scale rolling studies will be selected in the near future. In the Mo program, it has been shown that true hot forging of billets to sheet bar results in higher recrystallization temperatures of TZM and Mo-0.5Ti sheet than are obtained when normal forging temperatures are used. The Ta program is in the early stages of ingot production and primary breakdown fabrication of the Ta-30Nb-7.5V alloy. Three methods of fabricating W sheet are being investigated: rolling of powder-metallurgy billets, fabrication of arc-melted ingots, and floturning of cylindrical blanks. Properties obtained on both powdermetallurgy and arc-melted tungsten sheet compare very favorably. Evaluation of the formability of Mo-alloy sheet has been delayed until sheet is available from the production program. (Author)

Descriptors :   *HEAT RESISTANT METALS + ALLOYS, *REFRACTORY MATERIALS, *SHEETS, DEFORMATION, ELECTRIC ARCS, EXTRUSION, FORGING, HARDNESS, HEAT TREATMENT, MANUFACTURING, MECHANICAL PROPERTIES, MELTING, MOLYBDENUM ALLOYS, NIOBIUM ALLOYS, POWDER METALLURGY, TANTALUM ALLOYS, TITANIUM ALLOYS, TUNGSTEN, TUNGSTEN ALLOYS, ZIRCONIUM ALLOYS

Distribution Statement : APPROVED FOR PUBLIC RELEASE