An Investigation of the Influence of Shock-Wave Profile on the Mechanical and Thermal Responses of Polycrystalline Iron

Abstract

An investigation was conducted to determine the relative influence of shock-wave parameters on the strengthening of Magnetic Ingot Iron and AISI 1008 Steel. The independently-varied shock-wave parameters include peak pressure, peak pressure duration, and rarefaction rate. Eighteen shock-loading conditions were studied with peak pressures of 8, 10, 13, 18, 25 and 35 GPa. As peak pressure was increased, an increase of the 0.2% off-set yield stress, hardness, twin density and the degree of room temperature strain aging was observed. An increase of pulse duration caused an increase of twin volume fraction, yield strength, and strain aging. Rarefaction rate was found to produce no systematic changes in structure or properties.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1978
Accession Number
ADA062264

Entities

People

  • A. R. Pelton
  • G. A. Stone
  • G. T. Gray
  • R. N. Orava

Organizations

  • South Dakota School of Mines and Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cellular Structures
  • Chemistry
  • Crystal Structure
  • Electron Microscopy
  • Explosives
  • Grain Size
  • Hardness
  • High Energy Rate Forming
  • Materials
  • Measurement
  • Mechanical Properties
  • Phase Transformations
  • Plastic Explosives
  • Solid Solutions
  • Tensile Properties
  • Tensile Strength
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Materials Science and Engineering.
  • Metallurgy