A Study of High Temperature Deformation in Dispersion Strengthened Metal Single Crystals

Abstract

The objective of the work of this research program was to obtain an understanding of the mechanisms that control high temperature deformation in metal single crystals containing non-deformable particles. This objective was motivated by the belief that the presence of grain boundaries invariably degrades the creep and rupture properties of commercial dispersion strengthened metals and confuses efforts to understand their properties. The authors believe this work has made it easier to understand the unusual properties of dispersion strengthened metals. The main thrust of experimental work has been on single crystals of Ni-20Cr-2ThO2.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1976
Accession Number
ADA030886

Entities

People

  • George M. Pharr
  • John H. Holbrook
  • Paul S. Gilman
  • Richard W. Lund
  • William D. Nix

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Creep
  • Crystals
  • Dispersions
  • Elastic Properties
  • Electron Microscopy
  • Engineering
  • Grain Boundaries
  • Heat Of Activation
  • High Temperature
  • Materials
  • Materials Science
  • Mechanical Properties
  • Modulus Of Elasticity
  • Polycrystals
  • Reduction Of Area
  • Single Crystals
  • Stresses

Fields of Study

  • Physics

Readers

  • Educational Psychology
  • Powder metallurgy of Titanium alloys.