Study of Precipitation in Continuously Casting Slabs of Microalloyed Steels

Abstract:

The precipitation in continuously casting slabs of a Ti-Nb microalloyed steel was studied. The samples were taken from different places along cross section of slabs and the precipitations were observed by TEM. The results show that the centre area of slab contains more precipitates of Ti-Nb and carbonitrides more uniformly distribute in the centre along thickness direction. Moreover, the precipitates in the middle are more than those in the edge along width direction of slab. Some large carbonitrides exist in the middle of slab because the temperature in the middle is higher during slab cooling resulting in the large precipitates. The study provides the basis for understanding the precipitation in slabs of Ti-Nb microalloyed steels.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 323-326
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.323
• Online since: September 2013
• Authors: Guang Xu, Hai Jiang Hu, Tao Xiong, Zhang Wei Hu
• Keywords: Continuous Casting Slabs, Microalloyed Steel, Precipitation, TEM

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