Metalurgija, Vol. 58 No. 3-4, 2019.
Izvorni znanstveni članak
Numerical simulation of solidification structure of continuously cast bloom of steel 20CrNiMo
X. H. Wang
; College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, Liaoning, China
Z. M. Yu
; School of Metallurgy, Northeastern University, Shenyang, Liaoning, China
Sažetak
A model for predicting solidification structure of continuously cast steel was developed using commercial software ProCAST, and verified by the metallographic examination. Later, the effects of operational parameters on microstructure of continuously cast bloom of alloy steel 20CrNiMo were investigated. The results show that the increase of superheat can promote the columnar grain growth and inhibit the central equiaxed grain growth. When superheat increases from 20 K to 35 K, the central equiaxed grain ratio decreases from 17,8 % to 13,5 %.
Ključne riječi
alloyed steel; continuously cast bloom; solidification structure; metallographic examination; numerical simulation
Hrčak ID:
218347
URI
Datum izdavanja:
1.7.2019.
Posjeta: 1.120 *