The Formation Mechanism of Center-line Cracking on the Continuous Cast Slab

Kusano, Akihiko; Misumi, Hideyuki; Chiba, Hitoshi; Harada, Shinzô

doi:10.2355/tetsutohagane1955.84.1_43

Cited by 6 publications

(1 citation statement)

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“…Ju Jiantao [10] and Sui Xiaohong [11] have investigated the effects of the pouring temperature on the crack formation in continuous casting slabs. A. Kusano [12] and the author [13] of this paper took the bulge generated in continuous casting as a starting point, have discussed in-depth the formation mechanism of centre cracks and internal cracks of continuous casting slabs. Therefore, the arm of this article is to study the δ→γ phase transformation of the steel as well as the relations between the cracks formation and the δ→γ phase transformation, achieving to reveal the mechanism of crack formation in continuous casting slabs.…”

Section: Introductionmentioning

confidence: 99%

Relationships between δ→γ Phase Transformation and the Crack Formation in Continuous Casting Slabs

Chang

Chen

et al. 2011

AMR

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The δ→γ phase transformation in the steel was studied in detail, and the relationship between δ→γ phase transformation and the crack formation in continuous casting slabs was discussed as well. The results indicate that the micropores are formed at the positions where δ-phase transformation terminates during the δ→γ phase transformation for low-carbon non-peritectic steel. The micropores will also be formed at the positions where the peritectic reaction of the steel terminates, then the pores are remained on the grain boundary of γ-phase when γ-phase becomes granulated. The micropores distributing on the grain boundary of γ-phase is one of the results for the crack formation of continuous casting slabs and the obvious plasticity decrease of δ-phase zone in the steel. The theoretical analysis results are basically consistent with the experimental results.

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Section: Introductionmentioning

confidence: 99%