Studies in Deformation and Fracture.

Abstract

The effects of crystallite orientation upon the formation of deformation bands in alpha- iron are determined, along with the influence of crystallite orientation and size upon strength of polycrystalline iron. The application of thermomechanical processing methods to semicrystalline polymers produces marked strengthening in bulk nylon 6/6, and several modes of fracture are related to the thermal and mechanical history. Attempts to form aluminum-alumina composites by deformation processing procedures do not prove feasible. Geometrical problems and those associated with thermal expansion and residual stresses are the major sources of difficulty. (Author-PL)

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1974
Accession Number
AD0774331

Entities

People

  • George Mayer
  • William W. Austin

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Composite Materials
  • Crystal Structure
  • Crystallites
  • Crystals
  • Orientation (Direction)
  • Physical Properties
  • Polycrystals
  • Residual Stress
  • Residuals
  • Stresses
  • Thermal Expansion

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials
  • Surface Engineering/Surface Coating Technology.