Strengthening by Substitutional Solutes and the Temperature Dependence of the Flow Stress in Ni3Al

Abstract

Investigations have been performed to establish the mechanisms by which ternary solute additions to Ni3A1, influence the flow stress as a function of temperature in the region of increasing flow stress. Consideration has been given to the validity of applying the classical theories for solution hardening of disordered metals to ordered alloys. Likewise, a test of the qualitative concept of rationalizing the effects of ternary-solute additions on the basis of their expected influence upon the stability of the L12 structure has been performed. Ternary additions of SN and V were made to single-crystal 2Ni3A1, and the Ni/A1 ratio of binary single crystals was varied. (JES)

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Document Details

Document Type
Technical Report
Publication Date
May 26, 1989
Accession Number
ADA225562

Entities

People

  • Dennis M. Dimiduk

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Chemical Analysis
  • Chemistry
  • Crystal Structure
  • Crystals
  • Elastic Properties
  • Electron Microscopy
  • Hardening
  • Heat Treatment
  • High Temperature
  • Low Temperature
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Microscopy
  • Orientation (Direction)
  • Solid Solutions

Readers

  • Materials Science and Engineering.
  • Military History
  • Powder metallurgy of Titanium alloys.