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Metallurgical and Materials Transactions B

, Volume 46, Issue 2, pp 882–892 | Cite as

The Effects of Cr2O3 on the Melting, Viscosity, Heat Transfer, and Crystallization Behaviors of Mold Flux Used for the Casting of Cr-Bearing Alloy Steels

  • Chao Xu
  • Wanlin WangEmail author
  • Lejun Zhou
  • Senlin Xie
  • Chen Zhang
Article

Abstract

An investigation was conducted to study the effects of Cr2O3 on the melting, viscosity, heat transfer, and crystallization behaviors of mold flux used for casting high-carbon-chromium steel (Cr12MoV) by using single/double hot thermal-couple technology (SHTT/DHTT), rotary viscosity, and infrared emitter technique (IET). The results showed that both the melting temperature and viscosity increased significantly with the addition of Cr2O3 content, while the general heat transfer rate was reduced with the increase of Cr2O3 due to the decrease of liquid layer and the reduction of radiative heat transfer. Meanwhile, results of IET and DHTT tests indicated that Cr2O3 would inhibit crystallization of mold flux. The results of this study can elucidate the effects of Cr2O3 on the properties of mold flux and provide guidelines for the new mold flux design for the casting of Cr-bearing alloy steels.

Keywords

Heat Flux Mold Flux Copper Mold Continuous Casting Process Cr2O3 Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The financial supports from NSFC (51274244, 51322405) and Hunan Excellent Young Scholar Funding (14JJ1005) are greatly acknowledged.

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Copyright information

© The Minerals, Metals & Materials Society and ASM International 2014

Authors and Affiliations

  • Chao Xu
    • 1
  • Wanlin Wang
    • 1
    Email author
  • Lejun Zhou
    • 1
  • Senlin Xie
    • 1
  • Chen Zhang
    • 2
  1. 1.School of Metallurgy and Environment, Central South UniversityChangshaP.R. China
  2. 2.Steelmaking Research Department, Research InstituteBaosteel Group CorporationShanghaiP.R. China

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