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Simulation of microstructural evolution during repair welding of an IN718 plate

In English

Författare

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.

Publiceringsår

2016-11-01

Språk

Engelska

Sidor

92-101

Publikation/Tidskrift/Serie

Finite Elements in Analysis and Design

Volym

120

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Mechanical Engineering

Nyckelord

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

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0168-874X