Recrystallization and Grain-Growth Behavior of a Nickel-Base Superalloy During Multi-Hit Deformation (Preprint)

Abstract

The initial breakdown behavior of Waspaloy-ingot material with course, columnar grain structure was established via isothermal hot compression of double-cone samples. Temperature (1177 degrees C), strain rate (0.1 s-l), dwell time between increments of deformation (30 or 60 seconds), and forging direction relative to the columnar structure were typical of industrial practice. Recrystallization kinetics were more rapid during multi-hit testing than monotonic testing. The recrystallization and grain-growth behavior showed a complex dependence on imposed strain, test orientation, and dwell time.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2007
Accession Number
ADA467780

Entities

People

  • D. S. Weaver
  • Sheldon Lee Semiatin

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Department Of Defense
  • Dwell Time
  • Governments
  • Grain Growth
  • High Temperature
  • Information Operations
  • Materials
  • Military Research
  • Recrystallization
  • Strain Rate
  • Superalloys
  • United States

Fields of Study

  • Materials science

Readers

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