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Simulation of microstructural evolution during repair welding of an IN718 plate

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Author

Summary, in English

A precipitate evolution model based on classical nucleation, growth and coarsening theory is adapted and solved using the multi-class approach for the superalloy IN718. The model accounts for dissolution of precipitates and is implemented in a finite element program. The model is used to simulate precipitate evolution in the fused zone and the adjacent heat affected zone for a welding simulation. The calculated size distribution of precipitates is used to predict Vickers hardness. The simulation model is compared with nanoindentation experiments. The agreement between simulated and measured hardness is good.

Publishing year

2016-11-01

Language

English

Pages

92-101

Publication/Series

Finite Elements in Analysis and Design

Volume

120

Document type

Journal article

Publisher

Elsevier

Topic

  • Mechanical Engineering

Keywords

  • Alloy 718
  • Flow stress
  • Inconel 718
  • Nanoindentation
  • Nickel based superalloys
  • Precipitates

Status

Published

ISBN/ISSN/Other

  • ISSN: 0168-874X