Modelling and simulations of ductile iron solidification-induced variations in mechanical behaviour on component and microstructural level


Autoria(s): Olofsson, Jakob; Salomonsson, Kent; Svensson, Ingvar L.
Data(s)

2015

Resumo

The mechanical behaviour and performance of a ductile iron component is highly dependent on the local variations in solidification conditions during the casting process. Here we show a framework which combine a previously developed closed chain of simulations for cast components with a micro-scale Finite Element Method (FEM) simulation of the behaviour and performance of the microstructure. A casting process simulation, including modelling of solidification and mechanical material characterization, provides the basis for a macro-scale FEM analysis of the component. A critical region is identified to which the micro-scale FEM simulation of a representative microstructure, generated using X-ray tomography, is applied. The mechanical behaviour of the different microstructural phases are determined using a surrogate model based optimisation routine and experimental data. It is discussed that the approach enables a link between solidification- and microstructure-models and simulations of as well component as microstructural behaviour, and can contribute with new understanding regarding the behaviour and performance of different microstructural phases and morphologies in industrial ductile iron components in service.

Formato

application/pdf

Identificador

http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-27783

doi:10.1088/1757-899X/84/1/012026

ISI:000357879700026

Scopus 2-s2.0-84939538367

Idioma(s)

eng

Publicador

Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning

Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Material och tillverkning – Gjutning

Tekniska Högskolan, Högskolan i Jönköping, JTH, Produktutveckling

Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Produktutveckling - Simulering och optimering

Tekniska Högskolan, Högskolan i Jönköping, JTH, Material och tillverkning

Tekniska Högskolan, Högskolan i Jönköping, JTH. Forskningsmiljö Material och tillverkning – Gjutning

London

Relação

IOP Conference Series, 1757-8981 ; 84

IOP Conference Series: Materials Science and Engineering, Volume 84: MCWASP XIV: International Conference on Modeling of Casting, Welding and Advanced Solidification Processes, p. 1-8

Direitos

info:eu-repo/semantics/openAccess

Tipo

Conference paper

info:eu-repo/semantics/conferenceObject

text