Superplasticity: A Fundamental Investigation on Deformation Mechanism and Cavitation Phenomena.

Abstract

Al-Li alloy, and the mechanically alloyed IN91211 were investigated for superplasticity and enhanced plasticity. The optimum test condition for superplastic deformation, the associated grain boundary sliding and flow localization at non-optimum condition were investigated for Al-Li alloy. The enhanced plasticity at comparatively high strain rates was investigated in IN91211. The mechanical data were analyzed using the concept of threshold stress. The nature and temperature dependence of this threshold stress are being investigated more thoroughly at present. Keywords: Silicon carbide whiskers; Superplasticity; Aluminum-Lithium alloys; Mechanically alloyed systems; 2124-SiC Whisker Reinforced Matrix; Deformation mechanism.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 28, 1987
Accession Number
ADA179651

Entities

People

  • A. Chokshi
  • Arunabh Mukherjee
  • T. Bieler

Organizations

  • University of California, Davis

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Creep
  • Engineering
  • Grain Boundaries
  • Grain Size
  • Materials
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • Plastic Properties
  • Silicon Carbide
  • Strain Rate
  • Superplasticity

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.