Metadynamic recrystallization of the nickel-based superalloy Allvac 718Plus™

Christof Sommitsch*, Daniel Huber, Martin Stockinger

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


During hot working of the recently developed nickel based alloy Allvac 718Plus™ softening kinetics like dynamic, metadynamic as well as static recrystallization govern the microstructure evolution during and after hot forming and hence the final mechanical properties. In this work the metadynamic recrystallization was investigated using double hit compression tests. The classical methodology of offset stress comparison was not usable because of discontinuous yielding of this material. Thus a new method to describe the softening during metadynamic recrystallization was developed, which compares the deformation energy at equal strains, i.e. the area beneath the true strain vs. true stress curve, of the first and second hit as well as at steady state.

Original languageEnglish
Title of host publicationTHERMEC 2009
Number of pages6
Publication statusPublished - 9 Feb 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials: Thermec 2009 - Technical University-Berlin, Berlin, Germany
Duration: 25 Aug 200929 Aug 2009

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476


Conference6th International Conference on Processing and Manufacturing of Advanced Materials
Abbreviated titleTHERMEC 2009


  • FEM
  • Metadynamic recrystallization
  • Superalloy

ASJC Scopus subject areas

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


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