Development of Engineering Data on Thick-Section Electron Beam Welded Titanium

Abstract

The report provides a vital portion of the basic engineering data necessary for the design of reliable and efficient airframe structures involving electron-beam weldments in titanium alloys. Tensile, fracture toughness, and subcritical crack growth properties of both base metal and weldments have been obtained for 1- and 2-in. Ti-6Al-4V and 1-in. Beta III plate. Test temperatures ranged from -65F to 175F and the test environments included laboratory air, water, salt water and JP-4 jet fuel. The concept of stress intensity factors from linear elastic fracture mechanics is used to quantitatively assess the load carrying capacity and crack growth resistance of the test materials. Fracture toughness and tensile properties are tabulated while the fatigue crack propagation and stress corrosion cracking rates are presented in a graphic format.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1973
Accession Number
AD0774051

Entities

People

  • John G. Bjeletich

Organizations

  • Lockheed Martin Missiles and Space

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Airframes
  • Chemistry
  • Crystal Structure
  • Fatigue Tests (Mechanics)
  • Fracture (Mechanics)
  • Jet Engine Fuels
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Tensile Properties
  • Test And Evaluation
  • Yield Strength

Readers

  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design

Technology Areas

  • Directed Energy
  • Microelectronics