Modelling and simulations of ductile iron solidification-induced variations in mechanical behaviour on component and microstructural level
2015 (English)In: IOP Conference Series: Materials Science and Engineering, Volume 84: MCWASP XIV: International Conference on Modeling of Casting, Welding and Advanced Solidification Processes / [ed] Hideyuki Yasuda, Kyoto University, Japan, London: Institute of Physics Publishing (IOPP), 2015, Vol. 84, 1-8 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
London: Institute of Physics Publishing (IOPP), 2015. Vol. 84, 1-8 p.
, IOP Conference Series, ISSN 1757-8981 ; 84
Metallurgy and Metallic Materials Applied Mechanics
IdentifiersURN: urn:nbn:se:hj:diva-27783DOI: 10.1088/1757-899X/84/1/012026ISI: 000357879700026ScopusID: 2-s2.0-84939538367OAI: oai:DiVA.org:hj-27783DiVA: diva2:849128
MCWASP XIV: International Conference on Modeling of Casting, Welding and Advanced Solidification Processes, Awaji island, Hyogo, Japan, 21–26 June, 2015