Accession Number:

AD0263931

Title:

EVALUATION OF AGE HARDENING COPPER BASE ALLOYS FOR EOD TOOLS

Descriptive Note:

Corporate Author:

NAVAL WEAPONS PLANT WASHINGTON D C

Personal Author(s):

Report Date:

1961-07-19

Pagination or Media Count:

1.0

Abstract:

A series of age hardening Ni-Al-Si-Zr Cu-base alloys were investigated in the as cast and wrought conditions as possible substitutes or alternates for the Be-Cu alloys used in explosive ordnance disposal EOD tools. An evaluation of the mechanical properties and a study of the metallographic structures, as affected by variables involved in heat treating and mechanical working, are presented. Optimum minimum mechanical properties of 140,000 psi yield strength and 1 elongation were developed by solution treating at temperatures from 1750 to 1950 F, water quenching, cold working to 65 R.A., and age hardening at temperatures of 750 to 850 F for 5 to 30 minutes. Soley on the basis of mechanical properties, these alloys could find acceptance not only for the EOD tools but also for leaf and coil spring applications up to 850 F. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE