INFLUENCE OF STACKING FAULT ENERGY ON HIGH TEMPERATURE CREEP OF PURE METALS.

Abstract

The creep characteristics of four pure metals with widely varying stacking fault energies (Ag, Cu, Ni and Al) were evaluated above 0.5 Tm. Creep tests were performed under conditions of constant atomic diffusivity and constant stress over the elastic modulus. The steady state creep rate was found to be a function of the stacking fault energy such that steady state creep rate is proportional to stacking fault energy (3.5). In addition, it was uncovered that the primary creep strain and the strain to fracture increased with increasing stacking fault energy and that the ratio of initial to steady state creep rate decreased with increasing stacking fault energy. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1965
Accession Number
AD0611216

Entities

People

  • Craig R. Barrett
  • Oleg D. Sherby

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Creep
  • Creep Tests
  • Diffusivity
  • High Temperature
  • Mechanical Properties
  • Modulus Of Elasticity
  • Steady State

Readers

  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.