Volume 19 Issue 9
Sep.  2012
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Yuan-zhi Zhu, and Jian-ping Xu, A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel, Int. J. Miner. Metall. Mater., 19(2012), No. 9, pp.821-826. https://dx.doi.org/10.1007/s12613-012-0634-y
Cite this article as: Yuan-zhi Zhu, and Jian-ping Xu, A method to study interface diffusion of arsenic into a Nb-Ti microalloyed low carbon steel, Int. J. Miner. Metall. Mater., 19(2012), No. 9, pp.821-826. https://dx.doi.org/10.1007/s12613-012-0634-y

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

Author Affilications
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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).

  • 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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