THE EFFECT OF SURFACE-ACTIVE AGENTS ON THE MECHANICAL PROPERTIES OF METALS. PART I. THE EFFECT OF SURFACE-REMOVAL ON THE PLASTIC BEHAVIOR OF ALUMINUM SINGLE CRYSTALS.

Abstract

Aluminum single crystals were pulled in an electrolytic cell and the surface of the crystal was removed during the deformation. The extent of Stages I and II (of the deformation process) was increased and their slopes decreased as the rate of metal removed from the surface was increased. Increasing the strain rate caused a decrease in the extent of Stages I and II and increased the slopes. The experimental data indicate that the work-hardening coefficient of Stage I is determined primarily by the conditions which exist on the surface of the crystal. In Stages II and III, both surface effects and internal barriers are important. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1961
Accession Number
AD0281935

Entities

People

  • I. R. Kramer

Organizations

  • Glenn L. Martin Company

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Cells
  • Coefficients
  • Crystals
  • Electrolytic Cells
  • Experimental Data
  • Hardening
  • Mechanical Properties
  • Metals
  • Physical Properties
  • Single Crystals
  • Strain Rate
  • Surface-Active Agents

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Mechanical Engineering/Mechanics of Materials.
  • Surface Coatings Technology.