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Total Plastic Strain and Electrical Resistivity in High Purity Aluminum Cyclically Strained at 4.2 K

  • J. T. Gehan
  • K. T. Hartwig
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 36)

Abstract

The objective of this research is to correlate the resistivity increases in pure aluminum with the total accumulated plastic strain in cyclic strain experiments performed at 4.2 K. Monolithic tensile specimens were cycled to 0.1%, 0.2% and 0.3% strain for 3000 cycles. Resistivity measurements were made periodically during the experiments using the Eddy-Current Decay method. Resistivity increases are found to be linearly proportional to total plastic strain over much of the region for which plastic strain accumulates.

Keywords

Plastic Strain Electrical Resistivity Strain Range Resistivity Increase High Purity Aluminum 
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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • J. T. Gehan
    • 1
  • K. T. Hartwig
    • 1
  1. 1.Department of Mechanical EngineeringTexas A&M UniversityCollege StationUSA

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