Positron Annihilation Meanlife and Defects Created by Heat or Deformation in Aluminum, Titanium and Their Alloys and Nickel Base Superalloys.

Abstract

The positron annihilation meanlife change caused by defects created by heat treatment or deformation for aluminum, titanium and their alloys and some nickel base superalloys are described. Positron annihilation lifetime measurement can be used as a method to determine certain defects in these metals. The sensitivity and limitations of the method of positron annihilation lifetime measurement are briefly discussed. The direction of possible future research is also described. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1976
Accession Number
ADA024519

Entities

People

  • Shu-jen Tao

Tags

DTIC Thesaurus Topics

  • Alloys
  • Aluminum
  • Cooperation
  • Heat Treatment
  • Measurement
  • Metals
  • New York
  • Positrons
  • Sensitivity
  • Superalloys
  • Titanium

Fields of Study

  • Materials science
  • Physics

Readers

  • Metallurgy
  • Solar Physics