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Simulation of microstructural evolution during repair welding of an IN718 plate
Materials Science and Applied Mathematics, Faculty of Technology and Society, Malmö University, Malmö University, Materials Science, Technology and Society, Malmö Högskola.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-0053-5537
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Mechanics of Solid Materials.ORCID iD: 0000-0002-7298-020X
Division of Production and Materials Engineering, Lund University.
Number of Authors: 42016 (English)In: Finite elements in analysis and design (Print), ISSN 0168-874X, E-ISSN 1872-6925, Vol. 120, p. 92-101Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2016. Vol. 120, p. 92-101
National Category
Other Materials Engineering
Research subject
Material Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-9647DOI: 10.1016/j.finel.2016.07.007ISI: 000382296400007Scopus ID: 2-s2.0-84979642371Local ID: 8506a51a-a8b8-470f-a3b1-bb192f2b46fdOAI: oai:DiVA.org:ltu-9647DiVA, id: diva2:982585
Note

Validerad; 2016; Nivå 2; 20160816 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Lundbäck, AndreasEdberg, Jonas

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