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Influence of molybdenum alloying on thermomechanical fatigue life of compacted graphite irons
Department of Metallurgical and Foundry Engineering, University of Miskolc, Hungary.
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting.
SCANIA CV AB Materials Technology, Södertälje, Sweden.
Jönköping University, School of Engineering, JTH. Research area Materials and manufacturing – Casting.
2012 (English)In: International Journal of Cast Metals Research, ISSN 1364-0461, E-ISSN 1743-1336, Vol. 25, no 5, 277-286 p.Article in journal (Refereed) Published
Abstract [en]

In this study four compacted graphite irons (CGIs) and one grey cast iron (FGI) were produced and tested in the laboratory. The molybdenum content of the four CGI grades was varied between 0 and 1··01 wt-%. The purpose of the investigations was to examine the effect of the different molybdenum contents of the CGI on the thermomechanical fatigue (TMF) behaviour. The TMF tests were performed by cycling a constrained specimen between 110 and 600°C. For every material three tests were performed on specimens machined from a ∅20 mm cylinder. Other tests were performed on specimens machined from ∅55 mm and ∅85 mm cylinders respectively. The tests showed that additions of molybdenum improved the fatigue resistance of CGI. It was observed that additions of molybdenum refined the pearlite and that the specimens with a finer metallic matrix had a higher TMF resistance.

Place, publisher, year, edition, pages
2012. Vol. 25, no 5, 277-286 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:hj:diva-19445DOI: 10.1179/1743133612Y.0000000021Local ID: JTHMaterialISOAI: oai:DiVA.org:hj-19445DiVA: diva2:552834
Available from: 2012-09-17 Created: 2012-09-17 Last updated: 2015-11-17Bibliographically approved

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Diaconu, Lucian VasileDiószegi, Attila
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