Program to Develop High Strength Aluminum Powder Metallurgy Products. Phase 1. Process Optimization

Abstract

Aluminum-based P/M hand forgings and extrusions in two Al-Zn-Mg-Cu alloys have been studied to evaluate the effects of powder processing variations on forging quality and properties and extrusion properties. High quality hand forgings with high strength and ductility have been produced directly from hot pressed aluminum powder compacts without an intermediate extrusion operation. The processing conditions leading to maximized hand forging properties are: Cold press to at least 70% green density; preheat 1 hour at 1,000 F in dry argon; hot press at 90 ksi; forge at a temperature appropriate for the specific alloy; forge by any standard hand forging press technique with as much total reduction as possible.

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Document Details

Document Type
Technical Report
Publication Date
Mar 15, 1971
Accession Number
AD0882137

Entities

People

  • D. J. Truax
  • J. P. Lyle Jr.
  • W. S. Cebulak

Organizations

  • Alcoa

Tags

Communities of Interest

  • Advanced Electronics
  • C4I

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Cold Water
  • Data Analysis
  • Hot Pressing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Metallurgy
  • Particles
  • Plastic Explosives
  • Powder Metallurgy
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tensile Properties
  • Tensile Strength
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.