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Metallurgical Transactions A

, Volume 10, Issue 4, pp 433–438 | Cite as

Constant modulus alloys for mechanical oscillators

  • Wolfgang Schneider
  • Hans Thomas
Mechanical Behavior

Abstract

A survey is given of the origins of constant modulus behavior in certain ferro- and antiferromagnetic alloys. All contributions to the modulus anomaly (ΔΕ) result from magnetic ordering. In the Fe-Ni system various influences are studied in detail; Ternary alloying elements, precipitation hardening process, cold reduction and final thermal treatment. The thermoelastic properties of a technical constant modulus alloy were investigated in magnetic dc fields up to 300 A/cm for various vibrational modes; the influence of the skin-effect was detected forf > 30 kHz. Some dynamic applications (e.g. electromechanical filters, frequency standards, delay lines) are described.

Keywords

Metallurgical Transaction Cold Reduction Constant Modulus Modulus Defect Modulus Anomaly 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© American Society For Metals And The Metallurgical Society of AIME 1979

Authors and Affiliations

  • Wolfgang Schneider
    • 1
  • Hans Thomas
    • 1
  1. 1.Research and Development DepartmentVACUUMSCHMELZE GMBHHanauWest Germany

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