Accession Number:

ADD007631

Title:

Method of Treating Sm2Co17-Based Permanent Magnet Alloys.

Descriptive Note:

Patent Application,

Corporate Author:

DEPARTMENT OF THE ARMY WASHINGTON DC

Report Date:

1980-05-12

Pagination or Media Count:

5.0

Abstract:

The reversible temperature coefficient of magnetization of a permanent magnet alloy over the temperature range from -50 degrees C to 150 degrees C is lowered by heat treating the alloy in a noble gas atmosphere or in a vacuum by the steps of a heating the alloy at about 1150 degrees C for 1.5 hours b quenching the alloy in ice water, c heating the alloy at about 940 degrees C for 2 hours, d lowering the temperature to about 700 degrees C and heating for one hour, e lowering the temperature to about 600 degrees C and heating for one hour, f lowering the temperature to about 500 degrees C and heating for 2 hours, and g lowering the temperature to about 400 degrees C and heating for 10 hours. Author

Subject Categories:

  • Metallurgy and Metallography
  • Fabrication Metallurgy
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE