Stress relaxation measurements of meta-dynamic and static recrystallization of alloy 80A

S. Kleber, C. Sommitsch

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The stress relaxation method has been applied to the nickel-based alloy 80A to predict meta-dynamic (MDRX) and static recrystallization (SRX) kinetics. Compression tests were performed on a Gleeble 3800 system atr different temperatures (950-1200°C). The strain rate was varied in the case of MDRX and the pre-strain in the case of SRX. To investigate MDRX, the prestrain was set to twice the peak strain in order to reach steady state before holding. To focus on the interaction of MDRX and SRX, the pre-strain was set to the peak strain, where dynamic recrystallization (DRX) starts but does not yet reach steady state. Avrami type equations for the prediction of both the MDRX and SRX were adapted to feed a semi-empirical grain structure model.

Original languageEnglish
Pages (from-to)1237-1242
Number of pages6
JournalMaterials Science Forum
Volume467-470
Issue numberII
Publication statusPublished - 1 Jan 2004
Externally publishedYes
EventProceedings of the Second Joint International Conferences on Recrystallization and Grain Growth, ReX and GG2, SF2M - Annecy, France
Duration: 30 Aug 20043 Sep 2004

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stress relaxation
Stress relaxation
compression tests
strain rate
nickel
Dynamic recrystallization
Crystal microstructure
kinetics
predictions
Nickel
Strain rate
interactions
Kinetics
temperature
Temperature

Keywords

  • Metadynamic recrystallization
  • Static recrystallization
  • Stress relaxation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Stress relaxation measurements of meta-dynamic and static recrystallization of alloy 80A. / Kleber, S.; Sommitsch, C.

In: Materials Science Forum, Vol. 467-470, No. II, 01.01.2004, p. 1237-1242.

Research output: Contribution to journalConference articleResearchpeer-review

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