EVALUATION OF AGE HARDENING COPPER BASE ALLOYS FOR EOD TOOLS

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)

Document Details

Document Type
Technical Report
Publication Date
Jul 19, 1961
Accession Number
AD0263931

Entities

People

  • G.w. Trickett

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Age Hardening
  • Cold Working
  • Explosive Ordnance Disposal
  • Explosives
  • Hardening
  • Materials Processing
  • Mechanical Properties
  • Mechanical Working
  • Test And Evaluation
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Military/Explosive Ordnance Disposal (EOD) Technology
  • Systems Analysis and Design