Xinying Teng, Yifu Ye, Huanrong Wang, Zhiqiang Shi, Guanghui Min, and Haowei Wang, Origin of the pre-peak in the structure factor of liquid Fe-4.30C-0.21Ce alloy, J. Univ. Sci. Technol. Beijing, 10(2003), No. 2, pp. 56-59.
Cite this article as:
Xinying Teng, Yifu Ye, Huanrong Wang, Zhiqiang Shi, Guanghui Min, and Haowei Wang, Origin of the pre-peak in the structure factor of liquid Fe-4.30C-0.21Ce alloy, J. Univ. Sci. Technol. Beijing, 10(2003), No. 2, pp. 56-59.
Xinying Teng, Yifu Ye, Huanrong Wang, Zhiqiang Shi, Guanghui Min, and Haowei Wang, Origin of the pre-peak in the structure factor of liquid Fe-4.30C-0.21Ce alloy, J. Univ. Sci. Technol. Beijing, 10(2003), No. 2, pp. 56-59.
Citation:
Xinying Teng, Yifu Ye, Huanrong Wang, Zhiqiang Shi, Guanghui Min, and Haowei Wang, Origin of the pre-peak in the structure factor of liquid Fe-4.30C-0.21Ce alloy, J. Univ. Sci. Technol. Beijing, 10(2003), No. 2, pp. 56-59.
The liquid structure of Fe-4.30C and Fe-4.30C-0.21Ce alloys was studied by high temperature X-ray diffractometer. The results show that for Fe-C alloy the nearest neighbor distance of the eutectic alloy is 0.259-0.260 nm at the temperature range of 1200-1400℃, which increases to 0.269-0.271 nm with the addition of 0.21% (mass fraction) Ce in the Fe-C alloy at the same temperature range. There is a pre-peak at Q = 15.5 nm-1 on the original intensity curve and structure factor S(Q) of the liquid Fe-4.30C-0.21Ce alloy, which was caused by the Ce atoms in the C-Ce clusters. Combined with the shared face, the tetragonal structure can meet the requirement for the distance of Ce-Ce atoms. It also shows that the cluster size in the liquid Fe-4.30C-0.21Ce alloy in-creases with the decreasing temperature.
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