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J Mater Sci Technol  2004, Vol. 20 Issue (04): 421-425    DOI:
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Study Segregation of Alloying Elements in Continuous Casting Slab with Valence Electron Structure
Yan LIU, Zhilin LIU, Chengwei ZHANG, Yingguang ZHU
College of Science, Northeastern University, Shenyang 110004, China;Liaoning Institute of Technology, Jinzhou 121001, China
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Abstract  By calculating the electron structures of the phases that phosphor, sulfur and alloying elements dissolving in γ-Fe, the reason why alloying elements can bring centerline segregation in continuous casting slab (CCS) with nA, the number of electrons on the strongest covalent bonds, and the structure formation factor S were investigated, and an electron structural criterion to control and to eliminate the centerline segregation was advanced. Basing on this, the electron structures of a part of rare earth phosphides and sulfides are calculated, the physical mechanism that rare earth elements can control the segregation of phosphor and sulfur is analyzed, and the criterion is well verified.
Key words:  Valence electron structure      Continuous casting slab      Centerline segregation      Rare-earth elements      
Received:  01 January 1900     
Corresponding Authors:  Yan LIU     E-mail:

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Yan LIU, Zhilin LIU, Chengwei ZHANG, Yingguang ZHU. Study Segregation of Alloying Elements in Continuous Casting Slab with Valence Electron Structure. J Mater Sci Technol, 2004, 20(04): 421-425.

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[1] Yaohe ZHOU, Zhuangqi HU and Wanqi JIE: Technology of Solidification, Mechanic Industry Publishing House, Beijing, 1998, 320. (in Chinese)
[2] Gang QIAN and Xiaojiang RUAN: Steel and Iron, 2002, 37(5) , 16. (in Chinese)
[3] Kaike CAI and Shifu CHENG: Principle and Technique on Continuous Casting Steel, Metallurgical Industry Publishing House, Beijing, 1994, 332. (in Chinese)
[4] Zhilin LIU, Zhilin LI and Zhenguo SUN: Chinese Science Bulletin, 1995, 40(16) , 1389.
[5] Ruiuang Yu: Chinese Science Bulletin, 1978, 23(4) , 217. (in Chinese)
[6] Zhilin LIU, Zhilin LI and Weidong LIU: Electron Structure and Properties of Biphase Interface, Science Publishing House, Beijing, 2002, 30. (in Chinese)
[7] Zhilin LIU, Zhilin LI, Zhenguo SUN, Xiaoping YANG and Min CHEN: Science in China, 1995, A38(12) , 1484.
[8] Zhilin LIU and Zhilin LI: Science in China, 1995, A38(12) , 1492
[9] Zhilin LIU, Zhenguo SUN and Zhilin LI: Chinese Sci. Bull, 1995, 40(16) , 138.
[10] A.H.C.Zysjiya: Metal, 1972, 4, 53. (in Russia)
[11] Jingwen JI: Rare Earth, 2001, 22(4) , 7. (in Chinese)
[12] Jizhi CHEN: Appraisement on Achievement of Sci. and Technol., 1993, 227, 56. (in Chinese)
[13] Jingwen JI, Quanjin WEI, Dianqi GENG and Yuqin WU: Acta Metall. Sin., 1990, A14, 26. (in Chinese)
[14] Yuexin ZHANG: Thesis Volume of the Third National Conference on Application of Rare-earth in steel [C]. 1987. (in Chinese)
[15] A.M.Vasyel'myen: Measurement of Gas in Metal, Shanghai Science and Technology Publishing House, Shanghai, 1980, 41. (in Chinese)
[16] W.B.Pearson: Structure Reports, The International Union of Crystallography, ed. V.A.Oosthoek's Uitgevers MIJ UtrechtiI. 1964, 122, 168, 190, 198, 201; 1949, 139; 1969, 98; 1968, 82.
[17] Zhongshen YU, Youyi CHU, Xinlai HE, Guowei DU, Peiyu GAO and Fengwu ZHU: Rare Earth in Steel, Metallurgical Industry Publishing House, Beijing, 1982, 105. (in Chinese)
[18] Yan LIU, Zhilin LIU: Science in China, (submitted)
[19] Y. Qian: Iron and Steel, 1973, 59(11) , 384. (in Japanese)
[20] S. Heng: Iron and Steel, 1973, 59(4) , 88. (in Japanese)
[21] Ting DU: Metal Function Material, 1996, 3(3) , 81.
[22] Qin LIN, Wu YE, Ning CHEN, Ying GUO and Zhuqing CHEN: Journal of the Chinese Rare Earth Society, 1997, 15(3) , 228. (in Chinese)
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