Simulation of transverse crack formation on continuously cast peritectic medium carbon steel slabs

Mikio Suzuki, Hiroshi Hayashi, Hiroyuki Shibata, Toshihiko Emi, In Jae Lee

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Reliable data are limited to the critical strain for the formation of transverse cracks on the slabs, owing to experimental difficulty to simulate temperature gradient in solidified shell in continuous casting mold. The present study is to determine the critical strain, εc, for the formation of transverse cracks on continuously cast slabs. A convenient and simple hot tensile test using rectangular test pieces with either V-notch or semi-circle notch or oscillation marks has been developed by placing the specimen under similar temperature gradient to that in solidified shell in the mold. The εc has been determined at a better accuracy and reproducibility, and the εc at a strain rate of 5·10-4 s-1 is found to be a high 35% for test pieces without notch. It sharply decreases, however, to 10% for those with V- and semi-circle-notches, slightly decreases with increasing notch depth, and further decreases for those with oscillation marks that accompany solute segregation. Reduction of the oscillation mark depth is shown to be important measure to prevent the occurrence of transverse cracking of continuously cast slabs.

Original languageEnglish
Pages (from-to)412-419
Number of pages8
JournalSteel Research
Volume70
Issue number10
DOIs
Publication statusPublished - 1999 Oct
Externally publishedYes

ASJC Scopus subject areas

  • Metals and Alloys

Fingerprint Dive into the research topics of 'Simulation of transverse crack formation on continuously cast peritectic medium carbon steel slabs'. Together they form a unique fingerprint.

  • Cite this