Accession Number:

ADA285460

Title:

Modified Cu-Mn-Al High Damping Alloys

Descriptive Note:

Technical rept.

Corporate Author:

NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD

Personal Author(s):

Report Date:

1994-09-01

Pagination or Media Count:

17.0

Abstract:

Zirconium and erbium modified Cu-Mn-Al was spray formed in an effort to increase homogeneity and damping capacity and decrease impurity levels. Although the microstructure revealed that the optimum spray forming parameters have not yet been achieved, the modified alloys showed both high damping and resistance to losing that damping over time. The elemental additions also accelerated the formation of alpha manganese at the grain boundaries during aging.

Subject Categories:

  • Inorganic Chemistry
  • Metallurgy and Metallography
  • Crystallography
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE