ISSN：1003-8620

CN：42-1243/TF

Governed by: CITIC Pacific Special Steel Group Co., LTD

Sponsored by: Daye Special Steel Co., LTD.

Special Steel ›› 2014, Vol. 35 ›› Issue (3): 42-44.

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Effect of Electroslag Remelting Process on Metallurgical Quality of Twinning Induced Plasticity (TWIP) Steel

Guo Junru1, Liu Jianhua1, Zhuang Changling1, Zhang Qinglei2, Lei Chong2 ，Zhang Kailiang2   

  1. 1 Metallurgy Engineering Research Institute, University of Science and Technology, Beijing 100083;
    2 Technical Center, Zhongyuan Special Steel Co, Jiyuan 454650
  • Received:2013-12-09 Online:2014-06-01 Published:2022-08-30

电渣重熔工艺对孪晶诱发塑性(TWIP)钢冶金质量的影响

郭军儒1，刘建华1，庄昌凌1，张庆雷2，雷 冲2，张凯亮2   

  1. 1北京科技大学冶金工程研究院，北京100083 ；
    2中原特钢股份有限公司技术中心，济源454650
  • 作者简介:郭军儒(1989-),男，硕士研究生(北京科技大学),2011年 北京科技大学(本科)毕业,TWIP钢和电渣重熔研究。
  • 基金资助:
    国家自然科学基金项目资助(51374023)

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Abstract: Based on strong crack sensitivity and requiring high cleanliness of TWIP steel, with analysis and calculation the 14 t TWIP steel ESR ingot (/%: 0. 03C, 2. 88Si, 24. 71 Mn, 0. 021P, 0. 007S, 2. 98Al) has been remelted with 65CaF2-25Al2O3-10CaO slag by AOD refined two 0. 6 m diameter 7. 3 t electrode (/%: 0. 03C, 2. 75Si, 25. 13Mn, 0. 019P, 0. 002S, 2. 50Al). Examination results show that the inclusions average size in remelted steel reduces by 36.4% and the total inclusions amount decreases by 46. 7 %. Argon atmosphere should be used to reduce the loss of Al and Mn in ESR process.

摘要： 根据TWIP钢裂纹敏感性强和高洁净度要求,通过分析和计算,采用65CaF2-25Al2O3-10CaO渣,AOD精炼的2根0.6 m直径7.3 t电极(/%:0.03C,2.75Si,25.13Mn,0.019P,0.002S,2.50Al),重熔14 t TWIP钢电渣锭(/%:0.03C,2.88Si,24.71Mn,0.021P,0.007S,2.98Al)。检验结果表明,重熔后钢中夹杂物乎均尺寸减少36.4%,夹杂物总量降低46.7%;电渣时应采用氩气保护以减少钢中Al、Mn的烧损。

关键词: 孪晶诱发塑性钢, 电渣重熔, 热平衡计算, 冶金质量

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