The Role of Carbide Morphology on Low Cycle Fatigue Behavior of Iron-Carbon Alloys.

Abstract

A series of iron-carbon binary alloys having a pearlitic and spheroidized microstructure were reverse cycled in a Uniaxial Tension-Compression mode. The carbon level varied from pure iron through four carbon levels up to 2%. The specimens had an hourglass shaped configuration. The diametral strain was measured and controlled with a ring-type LVDT. The diametral strain was converted and reported as longitudinal strain based on constancy of volume considerations. Total longitudinal strain range varied from 1% to 4%, giving cyclic lives in the region from 300-5,000. Increasing the carbon content significantly influenced the cyclic life for the pearlitic structure but had only a slight influence on the spheroidized material. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0739508

Entities

People

  • R. Vincent Milligan

Tags

DTIC Thesaurus Topics

  • Alloys
  • Binary Alloys
  • Carbon
  • Carbon Alloys
  • Chemical Compounds
  • Compression
  • Elements
  • Materials
  • Microstructure
  • Reliability

Fields of Study

  • Materials science

Readers

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