Fundamental Investigations of Failure During Superplastic Forming Process

Abstract

The mechanical and microstructural aspect of superplastic deformation in Ti-6A1-4V alloy was investigated with special emphasis given to cavitation phenomenon. The contribution of grain growth and grain refinement in affecting the flow stress at a given temperature and strain rate was noted. Cavities nucleate and grow mostly at temperature below 850 degrees C. Above 900 degrees C cavity nucleation was almost nonexistent due to higher volume fraction of the soft deformable B phase in the microstructure.

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Document Details

Document Type
Technical Report
Publication Date
Feb 07, 1983
Accession Number
ADA125707

Entities

People

  • Amiya K. Mukherjee
  • Giora Gurewitz
  • Michael Meier

Organizations

  • University of California, Davis

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Creep
  • Crystal Structure
  • Engineering
  • Experimental Data
  • Flow
  • Grain Boundaries
  • Grain Growth
  • Grain Size
  • High Temperature
  • Materials
  • Materials Science
  • Mechanical Properties
  • Plastic Flow
  • Stresses
  • Superplasticity
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.