RESEARCH ON TANTALUM AND MOLYBDEMUM BRAZING TECHNIQUES

Abstract

Brazed molybdenum and tantalum alloy honeycomb structures offer good potential for structural and heat shield applications in the 2500 - 3500F range. However, molybdenum is seriously embrittled at braze temperatures above approximately 2500F. Tantalum alloys are not embrittled by high braze temperatures, but there are serious production problems associated with braze temperatures above 3000F. The purpose of this program is to develop molybdenum and tantalum braze systems which braze at relatively low temperatures, but develop high remelt temperatures. Some attention is also being directed to the development of braze alloys for tantalum that braze several hundred degrees above the expected service temperature. Most of the effort will be based on the TZM molybdenum alloy and the Ta-10W alloy. Some work will be performed using the Ta-8W-2Hf and Ta-30Cb-7,5V alloys.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1963
Accession Number
AD0428307

Entities

People

  • A. H. Freedman
  • E. B. Mikus

Tags

DTIC Thesaurus Topics

  • Alloys
  • Government Procurement
  • Governments
  • Heat Shields
  • Honeycomb Structures
  • Low Temperature
  • Molybdenum
  • Molybdenum Alloys
  • Plastic Explosives
  • Tantalum
  • Tantalum Alloys
  • Three Dimensional

Fields of Study

  • Materials science

Readers

  • Metallurgy