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A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel

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Abstract

A novel diffusion couple method was used to investigate the interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel and its effects on phase transformation at the interface. It is discovered that the content of arsenic has great effect on grain growth and phase transformation at high temperature. When the arsenic content is no more than 1wt%, there is no obvious grain growth and no obvious ferrite transitional region formed at the diffusion interface. However, when the arsenic content is no less than 5wt%, the grain grows very rapidly. In addition, the arsenic-enriched ferrite transitional layer forms at the diffusion interface in the hot-rolling process, which results from a slower diffusion rate of arsenic atoms than that of carbon in ferrite.

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Authors and Affiliations

  1. The Key Laboratory of the Ministry of Education of China for Ferrous Metallurgy and Resources Utilization, Wuhan University of Science and Technology, Wuhan, 430081, China

    Yuan-zhi Zhu

  2. School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan, 430081, China

    Yuan-zhi Zhu & Jian-ping Xu

Authors
  1. Yuan-zhi Zhu
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  2. Jian-ping Xu
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Correspondence to Yuan-zhi Zhu.

Additional information

This work was financially supported by the National Natural Science Foundation of China (No.50874083), the China Postdoctoral Science Foundation (No.201104493), and the China International Scientific and Technological Cooperation Projects (No.2010DFA52130).

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Zhu, Yz., Xu, Jp. A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel. Int J Miner Metall Mater 19, 821–826 (2012). https://doi.org/10.1007/s12613-012-0634-y

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  • DOI: https://doi.org/10.1007/s12613-012-0634-y

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