Influence of Iron and Silicon Content on the Tensile Properties of 7X75 and ZR-Modified 7X75 Aluminum Plate.

Abstract

This report studied how tensile strength and ductility of 7475-type aluminum plates were affected by Fe and Si content (purity), minor Zr substitutions for Cr, and thermomechanical processing (TMP) versus T651 tempers. In all, twenty combinations of composition and temper were examined. Smooth tensile specimens with 1/4 and 1/2 inch diameters were used. As Fe and Si content decreased, elongation and reduction of area increased in all but the T651 Zr-containing alloys. Purity had little effect on ultimate tensile and yield strength. The Zr-containing alloys were generally stronger than the Cr-containing alloys and had comparable ductility. Compared to the T651 temper, TMP had lower strength and higher ductility. TMP also increased the alloy's sensitivity to the Fe and Si content. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1975
Accession Number
ADA018059

Entities

People

  • Peter J. Blau

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Diameters
  • Ductility
  • Elongation
  • Mechanical Properties
  • Physical Properties
  • Reduction Of Area
  • Sensitivity
  • Tensile Properties
  • Tensile Strength
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Metallurgy
  • Powder metallurgy of Titanium alloys.