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Macrosegregation characteristics of ferrite and austenite stabilizer elements in large size high strength steel ingot

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Loucif, Abdelhalim, Zhang, Chunping, Jahazi, Mohammad et Lapierre-Boire, Louis-Philippe. 2020. « Macrosegregation characteristics of ferrite and austenite stabilizer elements in large size high strength steel ingot ». In 8th International Conference on Engineering and Innovative Materials (ICEIM 2019) (Tokyo, Japan, Sept. 06-08, 2019) Coll. « Key Engineering Materials », vol. 846. pp. 82-86. Trans Tech Publications Ltd.

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Abstract

In the present work, the segregation degrees of ferrite and austenite stabilizer alloying elements were analyzed for a high strength steel. For this, samples were taken from the surface and center of the hot-top and the upper section of a 40 MT ingot. The results showed that the positive segregation ratios for all the investigated elements were higher in the ingot center than in the surface with higher values for austenite stabilizer elements. The increase of austenite alloying element stabilizers was accompanied by the change in the primary solidification mode of the austenite phase. The obtained results are in good agreement with the observed presence of austenite, revealed by X-ray diffraction analysis, stabilized by the austenite alloying elements.

Item Type: Conference proceeding
ISBN: 10139826
Professor:
Professor
Jahazi, Mohammad
Affiliation: Génie mécanique
Date Deposited: 23 Oct 2020 18:05
Last Modified: 15 Nov 2021 20:08
URI: https://espace2.etsmtl.ca/id/eprint/21264

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