University of Oulu

Laine, J., Leppänen, A., Jalava, K. et al. Ductile iron optimization approach for mechanically and thermally loaded components. Inter Metalcast 15, 962–968 (2021).

Ductile iron optimization approach for mechanically and thermally loaded components

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Author: Laine, Jarkko1; Leppänen, A.1; Jalava, K.2;
Organizations: 1Wartsila Oyj, Järvikatu 2-4, 6500, Vaasa, Finland
2Department of Mechanical Engineering, Aalto University, Espoo, Finland
3Materials and Mechanical Engineering, University of Oulu, Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
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Language: English
Published: Springer Nature, 2021
Publish Date: 2021-10-14


The mechanical and thermal properties of ferritic–pearlitic ductile irons vary widely according to their silicon and pearlite contents. Thus, different combinations of silicon and pearlite affect components’ lifetime under mechanical and thermal stress. An excellent example of the usage of such irons is combustion engine cylinder heads. They experience transient thermal loading (heating and cooling) during starting and stopping in addition to mechanical loading (combustion) during engine operation. An optimization approach and calculation models for the estimation of the optimal ductile iron composition are presented in this study. The approach allows selection of the most suitable base composition for subsequent analyses, such as casting simulation and final accurate finite element modelling and fatigue calculations.

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Series: International journal of metalcasting
ISSN: 1939-5981
ISSN-E: 2163-3193
ISSN-L: 1939-5981
Volume: 15
Issue: 3
Pages: 962 - 968
DOI: 10.1007/s40962-020-00529-9
Type of Publication: A1 Journal article – refereed
Field of Science: 216 Materials engineering
Funding: Open access funding provided by Aalto University.. Open access funding provided by Aalto University.
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