Feasibility Study of Columbium Alloy Castings

Abstract

The purpose of the program is to determine the feasibility of investment-casting columbium alloys. Thirty-four castings are scheduled to be produced, using consumable-electrode arc-melting and tungsten interfaced molds to prevent mold-metal reaction. Phase I of this program concerns the optimization of mold design and preheat temperature. Phase II envisages the production of sound test specimens, followed by coating, and an environmental and mechanical testing effort.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1971
Accession Number
AD0721308

Entities

People

  • J. J. Walters
  • R. J. Beauregard

Tags

Communities of Interest

  • Autonomy
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Arc Melting
  • Contracts
  • Feasibility Studies
  • Gas Turbines
  • Investment Casting
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Mechanics
  • Melting
  • Niobium
  • Niobium Alloys
  • Refractory Materials
  • Refractory Metal Alloys
  • Refractory Metals
  • Turbines

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Software Engineering