TUNGSTEN SHEET ROLLING PROGRAM

Abstract

Progress is reported on a preliminary rolling study to determine the effects of rolling temperature and reduction on rollability and properties of W sheets. Preliminary work on InFab processing is discussed. From a rollability standpoint (i.e., material rolls satisfactorily without breaking up), initial rolling temperatures as low as 2300 F are satisfactory. Final rolling temperatures as low as 1800 F also proved satisfactory. The following ranges of processing parameters resulted in the lowest bend transition temperatures: (1) initial rolling at 2300 to 2500 F as compared to 2700 F, (2) reductions greater than 90% after recrystallization as compared to 80, 60, and 40%, and (3) maximum annealing temperature of 2000 F attributed to the initiation of recrystallization. Specimens were bent at 275 F which was the lowest temperature investigated. InFab forging of extrusions at 3000 to 4000 F proved satisfactory from a workability standpoint. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1962
Accession Number
AD0272781

Entities

People

  • W.j. Schoenfeld

Tags

DTIC Thesaurus Topics

  • Annealing
  • Critical Temperature
  • Extrusion
  • Glass Transition Temperature
  • Materials
  • Materials Processing
  • Phase Transformations
  • Recrystallization
  • Transition Temperature
  • Transitions
  • Tungsten

Fields of Study

  • Materials science

Readers

  • Metallurgy