Thermodynamics Analysis of Clogging of 409 Stainless Steel

Abstract:

Clogging of 409 Stainless Steel is serious, and it has difficult in continuous-casting, which have an effect upon the quality of casting blank. By way of calculation and analysis, TiN inclusions form in 409 stainless steel with w[N]•w[Ti] ≥0.00014, but TiN is oxidated to TiO₂ easily. A lot of TiO₂ inclusions which are due to reoxidization increase, which attach to the inner wall of the nozzle and form TiO₂ type clogging. With [Ca]≥0.00032% and [Ti]=0.003%, CaO•TiO₂-MgO•Al₂O₃ dual phase inclusions bring on CaO•TiO₂ type clogging in the nozzle. At the same time, there are some strategies to control the above mentioned clogging.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 183-187
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.183
• Online since: February 2012
• Authors: Cai Jun Zhang, Yan Zhang, Li Guang Zhu
• Keywords: Inclusion, Mould, Stainless Steel (SS), Thermodynamic

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