Accession Number:

AD0882137

Title:

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

Descriptive Note:

Final rept. 21 Jan 1970-20 Jan 1971

Corporate Author:

ALUMINUM CO OF AMERICA ALCOA CENTER PA ALCOA LABS

Report Date:

1971-03-15

Pagination or Media Count:

198.0

Abstract:

Aluminum-based PM 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.

Subject Categories:

  • Metallurgy and Metallography
  • Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE