Evaluation of 2090-T8E48 Aluminum-Lithium Plates

Abstract

A 1.5-inch-thick 2090-T8E48 aluminum-lithium (Al-Li) alloy plate was evaluated in conjunction with the Navy Cooperative Test Program. Mechanical characterization included testing of tensile specimens in the longitudinal, transverse, and short direction, and testing of compact tension/slow bend specimens covering the L-T, T-L, L-S, S-L, S-T, and T-S directions. In addition, ballistic tolerance against caliber .30 armor piercing projectile and 20-mm fragment simulated projectile was determined. Corrosion and stress corrosion studies were made in accordance with ASTM standards. Microstructural characterization was performed through optical metallography and transmission electron microscopy. Consolidation and discussion of all the results in comparison with previously evaluated 0.5-inch-thick X2090-T8 is presented.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1989
Accession Number
ADA217262

Entities

People

  • Ernest S. Chin
  • Marietta R. Cappucci
  • Robert E. Pasternak
  • Robert M. Huie

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aluminum Alloys
  • Chemical Synthesis
  • Chemistry
  • Electron Microscopy
  • Failure Mode And Effect Analysis
  • Grain Boundaries
  • Materials
  • Materials Science
  • Mechanical Properties
  • Microscopy
  • Military Research
  • Stress Corrosion
  • Tensile Properties
  • Tensile Strength
  • Test And Evaluation
  • United States

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Metallurgy

Technology Areas

  • Microelectronics