Opportunities of Physics-based Multi-Scale Modeling Tools in assessing intra-grain heterogeneities, polycrystal properties and residual stresses of AM metals

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Microstructure is the origin of the properties and performance for additively manufactured metals. Rapid solidification enable the formation of various grain/phase structures as well as solute segregation and initial dislocation structures that all contribute to the properties of the alloy. We present the following methods in this work. An effective way to approach process-structure-properties linkage in rapid solidification is to utilize a phase field solidification model coupled with a thermomechanical crystal plasticity. This allows us to assess both intra-grain/polycrystal level dislocation/stress heterogeneities introduced during solidification and residual stresses. Single-track laser melting is a method to analyze materials printability. In this scope, crystal plasticity is a tool to investigate heterogeneities and cracking tendency of solidified microstructures during cooling. Finally, at the part level it is possible to utilize homogenized/embedded crystal plasticity models to provide the thermomechanical response of the material. We review the pre-mentioned multiscale model outputs, interactive dialogue, and opportunities.
Original languageEnglish
Title of host publicationWorld PM2022 Congress Proceedings
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)978-1-899072-55-2
Publication statusPublished - Oct 2022
MoE publication typeA4 Article in a conference publication
EventWorld PM2022 Congress & Exhibition - Lyon, France
Duration: 9 Oct 202213 Oct 2022

Conference

ConferenceWorld PM2022 Congress & Exhibition
Country/TerritoryFrance
CityLyon
Period9/10/2213/10/22

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