CHARACTERIZING AND CONTROLLING THE METALLURGICAL PROPERTIES OF A CU-MN ALLOY FOR SHIP SILENCING APPLICATIONS

Electrical resistivity measurements were used to investigate the effect of stress, applied during aging and quenching, on the specific damping capacity (SDC) of Incramute (a 40 Mn - 58 Cu - 2 A1 commercial alloy). It was found that (1) stress applied during either aging, or quenching reduces the SDC of the alloy, (2) the martensitic transformation temperature is a linear function of the stress applied during quenching, and (3) stress applied during the aging treatment retards the aging kinetics. The hystersis of the martensite transformation, and the Neel temperature were determined from resistivity-temperature data. A phenomenological model based on SDC, percent of the martensitic transformation, and applied stress was developed to describe and predict the alloy's SDC behavior under various heat treatment schemes and stress conditions. /Author/

  • Corporate Authors:

    Naval Postgraduate School

    1 University Circle
    Monterey, CA  USA  93943
  • Authors:
    • Youngblood, F L
  • Publication Date: 1975-6

Media Info

  • Pagination: 84 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00127755
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: MS Thesis
  • Files: TRIS
  • Created Date: Dec 16 1975 12:00AM