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Improvenment of technique and evaluation methods for gradient solidification of carbon steels
2015 (English)In: Proceedings of the 6th International Congress on the Science and Technology of Steelmaking, ICS 2015, Chinese Society for Metals , 2015, 537-542 p.Conference paper (Refereed)
Abstract [en]

It is well known that, quality and properties of many commercial cast steels are strongly related to the microstructure developed during solidification and subsequent processing stages. With the temperature gradient in the meniscus shell covering a wide range of temperature, the resultant situation becomes rather complex. The objective of this research is to increase knowledge of solidification behaviour for industrially important steels. The microstructural evolution during solidification and subsequent solid-state transformation is studied by gradient solidification and quenching methods. Gradient solidification study can be a way of optimization of new steel grade production by understanding how multiphase microstructures are formed and how they can be controlled via deliberate selection of solidification. This research includes sampling by suction with quartz tubes through a syringe and solidification studies of three different carbon and peritectic steels. The phase transformation in the studied steels is precipitation of primary ferrite dendrite followed by peritectic reaction (L+δ →γ) during the gradient solidification and quenching.

Place, publisher, year, edition, pages
Chinese Society for Metals , 2015. 537-542 p.
Keyword [en]
Gradient solidification, Microstructural evolution, Peritectic transformation, Carbon steel, Microstructure, Quenching, Steelmaking, Evaluation methods, Gradient solidifications, Multiphase microstructure, Peritectic reaction, Processing stage, Solid state transformations, Solidification behaviour, Solidification
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-194683ScopusID: 2-s2.0-84983102651OAI: diva2:1049379
6th International Congress on the Science and Technology of Steelmaking, ICS 2015, 12 May 2015 through 14 May 2015

QC 20161124

Available from: 2016-11-24 Created: 2016-10-31 Last updated: 2016-11-24Bibliographically approved

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Heravi, Ghader
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