ELASTIC FATIGUE IN TITANIUM STUDIES BY SCANNING ELECTRON-MICROSCOPY.

Abstract

A study by scanning electron-microscopy was made of the fatigue caused by nominally elastic amplitudes in a strain-aging metal (titanium) where minor impurities only suffice to confer a significant elastic range. These amplitudes produce point-extrusions, which are contrasted with the slip-zone extrusions produced by larger amplitudes starting plastic strain. These point extrusions apparently give rise to microcracks when they form a dense enough distribution. They seem to arise from a finer and more inherent structural fault than the coarse accidental faults to which elastic fatigue has previously been attributed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1970
Accession Number
AD0705512

Entities

People

  • William A. Wood

Organizations

  • George Washington University

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Electron Microscopy
  • Electrons
  • Extrusion
  • Impurities
  • Metals
  • Microscopy
  • Optical Analysis
  • Scanning
  • Scanning Electron Microscopy
  • Titanium

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Systems Analysis and Design

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene