LOW TEMPERATURE FLOW AND FRACTURE CHARACTERISTICS OF SOME IRON-BASE ALLOYS

Abstract

Temperature dependent functions of various tensile flow stress and fracture parameters were investigated on iron and low composition alloys of Fe-C, Fe-Cr, Fe-Mn, and Fe-Ni. Data were obtained over a range of test temperatures from 200 to -196 C at an initial strairate of 0.01 in/min. It was found that the strain hardening exponent, n, for the Fe-Ni alloys exhibited a considerable improvement at very low testing temperatures with in creased alloy addition. Also, the stress and strain at fracture followed a predictable transitional type of behavior. Some anomalous yield point and strengthening effects were also observed.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1963
Accession Number
AD0409302

Entities

People

  • Frank R. Larson
  • John Nunes

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Base Metal
  • Carbon Steels
  • Chemical Analysis
  • Crystal Structure
  • Engineering
  • Grain Size
  • Iron Alloys
  • Jet Propulsion
  • Low Temperature
  • Mechanical Properties
  • Mechanical Working
  • Military Research
  • Solid Solutions
  • Strain Rate
  • Test And Evaluation
  • Test Methods
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Powder metallurgy of Titanium alloys.