Simulation of microstructural evolution during repair welding of an IN718 plate

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Abstract

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.

Detaljer

Författare
Enheter & grupper
Externa organisationer
  • Malmö University
  • Luleå University of Technology
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Maskinteknik

Nyckelord

Originalspråkengelska
Sidor (från-till)92-101
Antal sidor10
TidskriftFinite Elements in Analysis and Design
Volym120
StatusPublished - 2016 nov 1
PublikationskategoriForskning
Peer review utfördJa