Accession Number:

ADA467780

Title:

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

Descriptive Note:

Journal article

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE

Personal Author(s):

Report Date:

2007-02-01

Pagination or Media Count:

20.0

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.

Subject Categories:

  • Metallurgy and Metallography
  • Crystallography
  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE