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Simulation of microstructural evolution during repair welding of an IN718 plate

Fisk, M.; Lundbäck, A.; Edberg, J. and Zhou, J. M. LU (2016) In Finite Elements in Analysis and Design 120. p.92-101
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.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Alloy 718, Flow stress, Inconel 718, Nanoindentation, Nickel based superalloys, Precipitates
in
Finite Elements in Analysis and Design
volume
120
pages
10 pages
publisher
Elsevier
external identifiers
  • Scopus:84979642371
ISSN
0168-874X
DOI
10.1016/j.finel.2016.07.007
language
English
LU publication?
yes
id
8cee576c-e7c1-4bad-88d0-03326bdf5ab8
date added to LUP
2016-10-12 14:58:21
date last changed
2016-10-12 14:58:21
@misc{8cee576c-e7c1-4bad-88d0-03326bdf5ab8,
  abstract     = {<p>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.</p>},
  author       = {Fisk, M. and Lundbäck, A. and Edberg, J. and Zhou, J. M.},
  issn         = {0168-874X},
  keyword      = {Alloy 718,Flow stress,Inconel 718,Nanoindentation,Nickel based superalloys,Precipitates},
  language     = {eng},
  month        = {11},
  pages        = {92--101},
  publisher    = {ARRAY(0x8d2d758)},
  series       = {Finite Elements in Analysis and Design},
  title        = {Simulation of microstructural evolution during repair welding of an IN718 plate},
  url          = {http://dx.doi.org/10.1016/j.finel.2016.07.007},
  volume       = {120},
  year         = {2016},
}