Mechanical Properties of Tantalum and Niobium Base Alloys.

Abstract

The critical resolved shear stress of tantalum base alloys was measured from -196C to 300C and of niobium base alloys from -196C to 1800C. The behavior at low temperatures is complex. Certain features can, however, be recognized as significant: Both indirect and direct interactions contribute to the critical resolved shear stress. At high temperatures solid solution hardening is associated with an elastic interaction between solute atoms and dislocations. The modulus misfit parameter is more important than the size misfit parameter in describing the hardening. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1970
Accession Number
AD0869868

Entities

People

  • B. L. Mordike
  • K. D. Rogausch

Organizations

  • University of Liverpool

Tags

DTIC Thesaurus Topics

  • Alloys
  • Dislocations
  • Hardening
  • High Temperature
  • Low Temperature
  • Mechanical Properties
  • Physical Properties
  • Shear Stresses
  • Solid Solutions
  • Stresses
  • Tantalum

Readers

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